DE102015203375A1 - Process for processing a foam workpiece - Google Patents
Process for processing a foam workpiece Download PDFInfo
- Publication number
- DE102015203375A1 DE102015203375A1 DE102015203375.9A DE102015203375A DE102015203375A1 DE 102015203375 A1 DE102015203375 A1 DE 102015203375A1 DE 102015203375 A DE102015203375 A DE 102015203375A DE 102015203375 A1 DE102015203375 A1 DE 102015203375A1
- Authority
- DE
- Germany
- Prior art keywords
- foam
- workpiece
- foam workpiece
- tool
- friction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000006260 foam Substances 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000000463 material Substances 0.000 claims description 15
- 239000002344 surface layer Substances 0.000 claims description 15
- 239000011148 porous material Substances 0.000 claims description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000000280 densification Methods 0.000 abstract 1
- 239000006261 foam material Substances 0.000 description 9
- 239000006262 metallic foam Substances 0.000 description 8
- 238000003466 welding Methods 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229920001169 thermoplastic Polymers 0.000 description 4
- 239000004416 thermosoftening plastic Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P9/00—Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings; Features of such surfaces not otherwise provided for, their treatment being unspecified
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/1215—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding for other purposes than joining, e.g. built-up welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/128—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding making use of additional material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/56—After-treatment of articles, e.g. for altering the shape
- B29C44/5627—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/14—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces
- B32B5/145—Variation across the thickness of the layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/56—After-treatment of articles, e.g. for altering the shape
- B29C44/5627—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching
- B29C44/5636—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching with the addition of heat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/56—After-treatment of articles, e.g. for altering the shape
- B29C44/5681—Covering the foamed object with, e.g. a lining
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
- B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/004—Closing perforations or small holes, e.g. using additional moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/12—Thermoplastic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/0292—Thermoplastic elastomer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/04—Inorganic
- B32B2266/045—Metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/02—Cellular or porous
- B32B2305/022—Foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2311/00—Metals, their alloys or their compounds
- B32B2311/30—Iron, e.g. steel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
Die Erfindung bezieht sich auf ein Verfahren zur Bearbeitung eines Schaumwerkstücks 1, bei welchem auf eine Oberfläche des Schaumwerkstücks 1 zumindest ein rotierendes Reibwerkzeug 3 mit einer vorgegebenen Kraft F aufgesetzt und zur Verdichtung der Oberfläche längs der Oberfläche 2 bewegt wird.The invention relates to a method for processing a foam workpiece 1, wherein at least one rotating friction tool 3 is placed on a surface of the foam workpiece 1 with a predetermined force F and moved along the surface 2 for densification of the surface.
Description
Die Erfindung bezieht sich auf ein Verfahren zur Bearbeitung eines Werkstücks aus einem Metallschaum oder einem Thermoplastschaum mittels eines Reibwerkzeugs.The invention relates to a method for processing a workpiece made of a metal foam or a thermoplastic foam by means of a reaming tool.
Werkstücke aus einem Schaummaterial, beispielsweise aus Metallschäumen oder Thermoplastschäumen, haben aufgrund ihres Aufbaues keine dichte und durchgehende Deckfläche. Dies trifft sowohl für offenporige Schäume als auch für geschlossenporige Schäume zu. Folglich werden Schaumwerkstücke deshalb bisher meist als Elemente von Sandwichstrukturen verwendet, bei welchen die Oberflächen mit Blechen oder anderen plattenförmigen Materialien abgedeckt und verbunden werden, um dichte Oberflächen zu erreichen.Workpieces made of a foam material, such as metal foams or thermoplastic foams, have no dense and continuous top surface due to their structure. This applies to open-cell foams as well as closed-cell foams. As a result, foam workpieces have heretofore mostly been used as elements of sandwich structures in which the surfaces are covered and bonded with sheets or other plate-like materials to achieve dense surfaces.
Aus dem Stand der Technik bekannte Schaumwerkstücke, insbesondere Werkstücke aus Metallschäumen, zeichnen sich durch eine sehr geringe Dichte, eine hohe Stabilität und/oder durch gute Schwingungsdämpfungseigenschaften aus. Als Nachteil erweist sich jedoch, dass die Schaumwerkstücke selbst vielfach nicht einsetzbar sind, da es sich um offenporige oder geschlossenporige Konstruktionen handelt, welche nicht fluiddicht oder gasdicht sind. Aus diesem Grunde werden die meist plattenförmigen Schaumwerkstücke, wie erwähnt, im Rahmen von Sandwichkonstruktionen eingesetzt, die beispielsweise mit Aluminiumblechen oder Stahlblechen belegt werden. Es ist auch aus dem Stand der Technik bekannt, die Oberfläche zu verpressen, um die vorhandenen Poren zusammenzudrücken. Dies führt jedoch nur bedingt zu dichten Oberflächen, die gegenüber Flüssigkeiten oder Gasen abdichtend sind.Foam workpieces known from the prior art, in particular workpieces made of metal foams, are characterized by a very low density, high stability and / or good vibration damping properties. The disadvantage, however, proves that the foam workpieces themselves are often not applicable, since it is open-pored or closed-pore constructions, which are not fluid-tight or gas-tight. For this reason, the most plate-shaped foam workpieces, as mentioned, are used in the context of sandwich structures, which are covered for example with aluminum sheets or steel sheets. It is also known from the prior art to press the surface to compress the existing pores. However, this leads only to limited to dense surfaces that are sealing against liquids or gases.
Die
Aus der
Ein Verfahren zum Verbinden metallischer Schaumwerkstoffe offenbart die
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Bearbeitung eines Schaumwerkstücks zu schaffen, welches bei einfachem Aufbau und einfacher, kostengünstiger Durchführbarkeit eine zuverlässige Oberflächenbearbeitung sicherstellt.The invention has for its object to provide a method for processing a foam workpiece, which ensures reliable surface processing with a simple structure and simple, cost-effective feasibility.
Erfindungsgemäß wird die Aufgabe durch die Merkmalskombination des Anspruchs 1 gelöst, die Unteransprüche zeigen weitere vorteilhafte Ausgestaltungen der Erfindung.According to the invention the object is achieved by the combination of features of
Erfindungsgemäß ist somit vorgesehen, dass auf eine Oberfläche des Schaumwerkstücks zumindest ein rotierendes Reibwerkzeug aufgesetzt wird, so dass sich durch die aus der Relativbewegung des mindestens einen Reibwerkzeugs zur Oberfläche des Schaumwerkstücks resultierende Reibwärme eine Erwärmung der Oberfläche des Schaumwerkstücks ergibt. Das Reibwerkzeug wird dabei mit einer vorgegebenen Kraft vorzugsweise im Wesentlichen senkrecht zur Oberfläche des Schaumwerkstücks auf das Schaumwerkstück gedrückt. Durch das Erwärmen der oberen Schicht des Schaumwerkstücks erfolgt eine Verdichtung des Schaummaterials an der Oberfläche des Schaumwerkstücks, wobei das Schaummaterial durch die Reibwärme plastifiziert oder angeschmolzen werden kann. In anderen Worten erfolgt die Erwärmung des Schaummaterials auf Plastifizierungstemperatur oder Schmelztemperatur. In jedem Falle werden die an der Oberfläche bzw. in der Oberflächenschicht vorhandenen Poren des Schaummaterials zusammengedrückt und/oder verschlossen und/oder ganz oder teilweise verschweißt, so dass sich insgesamt eine dichte und durchgehende Deckfläche ergibt.According to the invention, it is thus provided that at least one rotating reaming tool is placed on a surface of the foam workpiece so that heating of the surface of the foam workpiece results from the frictional heat resulting from the relative movement of the at least one reaming tool to the surface of the foam workpiece. The reaming tool is thereby pressed onto the foam workpiece with a predetermined force, preferably substantially perpendicular to the surface of the foam workpiece. By heating the upper layer of the Schaumwerkstücks a compression of the foam material takes place on the surface of the foam workpiece, wherein the foam material can be plasticized or melted by the frictional heat. In other words, the heating of the foam material takes place on plasticizing temperature or melting temperature. In any case, the pores of the foam material present on the surface or in the surface layer are compressed and / or closed and / or completely or partially welded, so that the overall result is a dense and continuous top surface.
Die sich erfindungsgemäß ergebende Deckfläche auf dem Schaumwerkstück, die dicht gegen Flüssigkeiten und Gase ist, kann weiterhin, da sie eine größere Festigkeit als der Schaumwerkstoff selbst aufweist, zur Verbesserung der Tragfähigkeit und Festigkeit des Schaumwerkstücks beitragen.Further, the top surface on the foam workpiece, which is impermeable to liquids and gases, according to the invention, because it has greater strength than the foam material itself, can contribute to improving the load capacity and strength of the foam workpiece.
Das erfindungsgemäße Verfahren ist sowohl bei Metallschäumen als auch bei Thermoplastschäumen anwendbar.The method according to the invention can be used both with metal foams and with thermoplastic foams.
Ein weiterer Vorteil des erfindungsgemäßen Verfahrens besteht darin, dass das rotierende Reibwerkzeug, welches nach Erwärmung der Oberflächenschicht diese zu einer dichten Deckschicht verpresst, verdichtet bzw. verschweißt, einfach aufgebaut sein kann. Es ist beispielsweise möglich, ein im Wesentlichen zylinderförmiges Reibwerkzeug, insbesondere eine Reibscheibe oder eine Reibwalze zu verwenden. Diese kann sich bevorzugt um eine parallel zur Oberfläche des Schaumwerkstücks angeordnete Rotationsachse drehen. Somit ist es möglich, durch entsprechende Dimensionierung des Reibwerkzeugs auch sehr großflächige Schaumwerkstücke in kurzer Zeit zu bearbeiten.Another advantage of the method according to the invention is that the rotating reaming tool, which compresses, compresses or welds them into a dense top layer after heating the surface layer, is simple can be constructed. For example, it is possible to use a substantially cylindrical friction tool, in particular a friction disk or a friction roller. This can preferably rotate about an axis of rotation parallel to the surface of the foam workpiece. Thus, it is possible to edit by appropriate dimensioning of the friction tool and very large foam workpieces in a short time.
Mittels des erfindungsgemäßen Verfahrens ist es somit möglich, Schaumwerkstücke zu erzeugen, welche aus sich heraus dichte und stabile Oberflächenschichten aufweisen. Hierbei ergibt sich ein wesentlicher Vorteil im Vergleich zu den bekannten Sandwich-Konstruktionen, da keine zusätzlichen Bauelemente oder Materialien verwendet werden müssen. Außerdem werden Oxidschichten durch den Reibprozess aufgebrochen, wodurch ein Verschließen der Poren durch einen Schweißprozess möglich wird, was besonders bei Materialien, die stark zur Oxidbildung neigen, wie beispielsweise Aluminium, von Vorteil ist.By means of the method according to the invention, it is thus possible to produce foam workpieces which have dense and stable surface layers. This results in a significant advantage compared to the known sandwich constructions, since no additional components or materials must be used. In addition, oxide layers are broken by the rubbing process, which makes it possible to close the pores by a welding process, which is particularly advantageous for materials that are highly prone to oxide formation, such as aluminum.
In einer Weiterbildung der Erfindung ist vorgesehen, dass in das Schaumwerkstück ein Verstärkungselement eingebracht ist, welches beispielsweise plattenförmig ausgebildet sein kann. Während bei einem homogen aufgebauten Schaumwerkstück, wie oben beschrieben, eine Verdichtung der Oberflächenschicht erfolgt, um die Poren zu schließen und die Oberflächenschicht gegenüber Flüssigkeiten und Gasen dicht zu machen, ist es bei der Variante mit dem eingebrachten Verstärkungselement möglich, dieses zusätzlich mechanisch zu verankern und die über dem Verstärkungselement angeordnete Schaumwerkstoffschicht/Oberflächenschicht des Schaumwerkstücks mittels des Reibwerkzeugs zu verdichten, zu verfestigen und/oder zu verschweißen.In one embodiment of the invention, it is provided that in the foam workpiece, a reinforcing element is introduced, which may be formed, for example, plate-shaped. While in a homogeneously constructed foam workpiece, as described above, a compaction of the surface layer to close the pores and make the surface layer against liquids and gases, it is possible in the variant with the introduced reinforcing member, this additionally mechanically anchored and to compress, solidify and / or weld the foam material layer / surface layer of the foam workpiece arranged above the reinforcing element by means of the friction tool.
Während es prinzipiell möglich ist, das Reibwerkzeug in Form eines rotierenden Zylinders, einer Reibscheibe oder einer Reibwalze auszubilden, ist es in Weiterbildung der Erfindung auch möglich, das Reibwerkzeug selbst zu profilieren. Dabei ergibt sich die Möglichkeit, die Oberfläche des Schaumwerkstücks nicht nur ganzflächig sondern auch partiell oder streifenförmig oder insbesondere nur einzelne Bahnen der Oberfläche des Schaumwerkstücks mittels des Reibwerkzeugs zu verdichten, zu verfestigen und/oder zu verschweißen, während nicht-verfestigte Stege stehenbleiben. Dies kann zu einer Erhöhung der mechanischen Festigkeit beitragen. Es ist auch möglich, die sich hierbei bildenden Stege seitlich und in ihrer Oberfläche ebenfalls mittels des Reibwerkzeugs zu verdichten, zu verfestigen und/oder zu verschweißen und die dort befindlichen Poren zu schließen. Es ist somit möglich, eine wellenförmige Oberflächengestalt oder Ähnliches herzustellen, die sich durch besondere Festigkeitseigenschaften auszeichnet.While it is in principle possible to form the friction tool in the form of a rotating cylinder, a friction disc or a friction roller, it is also possible in the invention to profile the friction tool itself. This results in the possibility of compacting the surface of the Schaumwerkstücks not only the whole surface but also partially or strip-shaped or in particular only individual tracks of the surface of the foam workpiece by means of the friction tool, solidify and / or to weld, while non-solidified webs stop. This can contribute to an increase in mechanical strength. It is also possible to compress the webs forming in this case laterally and in their surface also by means of the friction tool, to solidify and / or to weld and to close the pores located there. It is thus possible to produce a wavy surface shape or the like, which is characterized by particular strength properties.
Eine weitere Variante des erfindungsgemäßen Verfahrens besteht darin, während des Reibvorgangs zwischen Reibwerkzeug und Oberfläche des Schaumwerkstücks zumindest ein Zusatzmaterial einzubringen. Dieses kann insbesondere in Form eines Pulvers, besonders bevorzugt in Form eines Metallpulvers oder Kunststoffpulvers ausgebildet sein. Der Zusatzwerkstoff kann während des Reibvorgangs in die vorhandenen Poren eingerieben werden, um diese besser zu verschließen. Ein derartiges Vorgehen ist insbesondere bei grobporigen Schaummaterialien vorteilhaft.A further variant of the method according to the invention is to introduce at least one additional material during the rubbing process between the friction tool and the surface of the foam workpiece. This may in particular be in the form of a powder, more preferably in the form of a metal powder or plastic powder. The filler material can be rubbed during the rubbing process into the existing pores in order to better seal them. Such a procedure is particularly advantageous for coarsely porous foam materials.
Weiterhin ist es erfindungsgemäß möglich, mittels des rotierenden Reibwerkzeugs nicht nur die Oberflächenschicht des Schaumwerkstücks zu komprimieren und zu verdichten, sondern auch ein zusätzliches, flächiges, band- oder drahtförmges Deckmaterial, beispielsweise ein Deckblech oder eine Folie aufzureiben.Furthermore, it is possible according to the invention to compress and compact not only the surface layer of the foam workpiece by means of the rotating reaming tool, but also to ream an additional, flat, band or wire-shaped covering material, for example a cover plate or a foil.
Im Folgenden wird die Erfindung anhand von Ausführungsbeispielen in Verbindung mit den Zeichnungen beschrieben. Dabei zeigt:In the following the invention will be described by means of embodiments in conjunction with the drawings. Showing:
Bei der Beschreibung der nachfolgenden Ausführungsbeispiele werden gleiche Teile mit gleichen Bezugsziffern versehen.In the description of the following embodiments, like parts are given the same reference numerals.
Die
Die
Durch das Reibwerkzeug
Das Ausführungsbeispiel der
Die
Die
Die
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- SchaumwerkstückFoam workpiece
- 22
- Oberflächesurface
- 33
- Reibwerkzeugreaming
- 44
- Rotationsachseaxis of rotation
- 55
- verdichtete Oberflächenschichtcompacted surface layer
- 66
- Verstärkungselementreinforcing element
- 77
- Zusatzmaterialadditional material
- 88th
- Deckelementcover element
- 99
- Drehrichtungdirection of rotation
- 1010
- Zwischenraumgap
- 1111
- Stegweb
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 19917132 A1 [0004] DE 19917132 A1 [0004]
- DE 10340681 B4 [0005] DE 10340681 B4 [0005]
- WO 02/18089 A1 [0006] WO 02/18089 A1 [0006]
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015203375.9A DE102015203375A1 (en) | 2015-02-25 | 2015-02-25 | Process for processing a foam workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015203375.9A DE102015203375A1 (en) | 2015-02-25 | 2015-02-25 | Process for processing a foam workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102015203375A1 true DE102015203375A1 (en) | 2016-08-25 |
Family
ID=56577656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102015203375.9A Withdrawn DE102015203375A1 (en) | 2015-02-25 | 2015-02-25 | Process for processing a foam workpiece |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102015203375A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3944944A1 (en) * | 2020-07-29 | 2022-02-02 | Airex AG | Contoured structural element and manufacture of the contoured structural element |
| WO2025032150A1 (en) * | 2023-08-08 | 2025-02-13 | Clarkson Pirmin | Method, multi-part friction disc, and manufacturing device for additive manufacturing of an object |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1404323A1 (en) * | 1955-10-13 | 1969-10-09 | Lares Lavorazione Resine Espan | Process and device for the production of composite sheets made of plastic foam with a refined surface |
| DE19917132A1 (en) | 1999-04-15 | 2000-10-19 | Dietmar Eifler | Solid joint production between cellular and compact metal workpieces, e.g. in sandwich structure production, comprises pressing an ultrasonic welding sonotrode against a force-fit workpiece joint |
| WO2002018089A1 (en) | 2000-08-26 | 2002-03-07 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method for joining foamed metallic materials |
| DE10231830A1 (en) * | 2002-07-12 | 2004-01-22 | Röhm GmbH & Co. KG | Foam with compacted surface |
| DE10340681B4 (en) | 2003-09-04 | 2006-09-28 | M.Pore Gmbh | Process for producing a cohesive, heat-conducting connection between an open-pored foam structure and a non-porous body for heat exchangers, in particular a heat sink |
-
2015
- 2015-02-25 DE DE102015203375.9A patent/DE102015203375A1/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1404323A1 (en) * | 1955-10-13 | 1969-10-09 | Lares Lavorazione Resine Espan | Process and device for the production of composite sheets made of plastic foam with a refined surface |
| DE19917132A1 (en) | 1999-04-15 | 2000-10-19 | Dietmar Eifler | Solid joint production between cellular and compact metal workpieces, e.g. in sandwich structure production, comprises pressing an ultrasonic welding sonotrode against a force-fit workpiece joint |
| WO2002018089A1 (en) | 2000-08-26 | 2002-03-07 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method for joining foamed metallic materials |
| DE10231830A1 (en) * | 2002-07-12 | 2004-01-22 | Röhm GmbH & Co. KG | Foam with compacted surface |
| DE10340681B4 (en) | 2003-09-04 | 2006-09-28 | M.Pore Gmbh | Process for producing a cohesive, heat-conducting connection between an open-pored foam structure and a non-porous body for heat exchangers, in particular a heat sink |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3944944A1 (en) * | 2020-07-29 | 2022-02-02 | Airex AG | Contoured structural element and manufacture of the contoured structural element |
| WO2022023049A1 (en) | 2020-07-29 | 2022-02-03 | Airex Ag | Contoured structural element and production of the contoured structural element |
| CN116209556A (en) * | 2020-07-29 | 2023-06-02 | 艾克雷斯有限公司 | Contour structural element and production of contour structural element |
| US20230294377A1 (en) * | 2020-07-29 | 2023-09-21 | Airex Ag | Contoured structural element and production of the contoured structural element |
| CN116209556B (en) * | 2020-07-29 | 2025-05-02 | 艾克雷斯有限公司 | Profile structural elements and production of profile structural elements |
| US12485642B2 (en) * | 2020-07-29 | 2025-12-02 | Airex Ag | Contoured structural element and production of the contoured structural element |
| WO2025032150A1 (en) * | 2023-08-08 | 2025-02-13 | Clarkson Pirmin | Method, multi-part friction disc, and manufacturing device for additive manufacturing of an object |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AT509981B1 (en) | METHOD FOR PRODUCING COMPOSITE BODIES AND COMPOSITE BODIES MADE ACCORDING THEREOF | |
| DE19630271C2 (en) | Method for connecting a plasticizable workpiece to another workpiece | |
| WO2009135786A1 (en) | Method for forming a crimping fold in a multi-layer composite material and multi-layer composite material having at least one crimping fold | |
| EP2643111A2 (en) | Method for producing engine components with a geometrically complex structure | |
| DE102015005407A1 (en) | Friction stir welding of thermoplastics | |
| EP3631923B1 (en) | Welded pressure release device | |
| EP3946943A2 (en) | Method for producing a sandwich composite component with pressed two- or three-dimensional shape, and such a sandwich composite component | |
| DE102016224431B4 (en) | Body component | |
| EP3944944B1 (en) | Contoured structural element and manufacture of the contoured structural element | |
| DE3936438A1 (en) | EXTRUDER HOUSING COMPONENT FOR A TWIN-SCREW EXTRUDER AND METHOD FOR THE PRODUCTION THEREOF | |
| DE102015118787A1 (en) | Method and device for producing metal foam composite bodies and metal foam composite bodies | |
| DE19930931A1 (en) | Layered composite with welded metal insert | |
| DE102005025199A1 (en) | Apparatus for rapidly producing shaped articles, e.g. of ceramic, by laser-induced sintering and/or fusion of particles, includes particle transporting annular doctor blade with particle compressing roller | |
| DE1225026B (en) | Method for joining workpieces made from metal fibers | |
| DE102015203375A1 (en) | Process for processing a foam workpiece | |
| DE102008044763A1 (en) | coating process | |
| EP2809461B1 (en) | Device and method for producing non-porous profiles from separation residues by means of extrusion | |
| EP1741952A1 (en) | Brake pad for rail and not rail-bound vehicles | |
| EP2247492B1 (en) | Vehicle clutch | |
| DE2657463C2 (en) | Composite material with a core and a coating that is firmly bonded to it | |
| DE102014218379A1 (en) | LWRT layer composite body, vehicle component such and vehicle with such a vehicle component | |
| EP1611262B1 (en) | Method for strengthening a component consisting of a deformable cellular material, said component and the use thereof | |
| WO2021094253A1 (en) | Friction film | |
| AT524212B1 (en) | Process for manufacturing a friction plate | |
| DE102014118747A1 (en) | Method and device for connecting fiber materials to metal materials |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R012 | Request for examination validly filed | ||
| R016 | Response to examination communication | ||
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |