DE102007015437B3 - Adding zone change e.g. extension, determining method for use during e.g. health and/or life-cycle-monitoring of adding zone of metallic composite material, involves measuring changes with sensor systems, which are positioned in zone - Google Patents
Adding zone change e.g. extension, determining method for use during e.g. health and/or life-cycle-monitoring of adding zone of metallic composite material, involves measuring changes with sensor systems, which are positioned in zone Download PDFInfo
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- DE102007015437B3 DE102007015437B3 DE102007015437A DE102007015437A DE102007015437B3 DE 102007015437 B3 DE102007015437 B3 DE 102007015437B3 DE 102007015437 A DE102007015437 A DE 102007015437A DE 102007015437 A DE102007015437 A DE 102007015437A DE 102007015437 B3 DE102007015437 B3 DE 102007015437B3
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000012544 monitoring process Methods 0.000 title claims description 7
- 239000002131 composite material Substances 0.000 title claims description 4
- 230000036541 health Effects 0.000 title claims description 3
- 230000008859 change Effects 0.000 title abstract description 3
- 239000000463 material Substances 0.000 claims abstract description 32
- 239000000835 fiber Substances 0.000 claims abstract description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000000576 coating method Methods 0.000 claims abstract 2
- 238000005304 joining Methods 0.000 claims description 31
- 230000008569 process Effects 0.000 claims description 12
- 239000007769 metal material Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 4
- 238000005476 soldering Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000010408 film Substances 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 5
- 229910000679 solder Inorganic materials 0.000 description 4
- 239000010410 layer Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
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- 238000013461 design Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
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- 229910018507 Al—Ni Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
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- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 1
- 150000001875 compounds Chemical class 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
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- 238000009792 diffusion process Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
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- 238000003786 synthesis reaction Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35303—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using a reference fibre, e.g. interferometric devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35306—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement
- G01D5/35309—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement using multiple waves interferometer
- G01D5/35316—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement using multiple waves interferometer using a Bragg gratings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35338—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using other arrangements than interferometer arrangements
- G01D5/35354—Sensor working in reflection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N2021/7769—Measurement method of reaction-produced change in sensor
- G01N2021/7773—Reflection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Bestimmung von Veränderungen (Form- und/oder Lageänderungen, Dehnungen, Spannungen, Temperaturänderungen) in der Fügezone metallischer Werkstoffe, die stoffschlüssig mittels Schweißen oder Löten unter Verwendung eines reaktiven Werkstoffsystems mit oder ohne Zusatzstoff gefügt werden.The The invention relates to a method for determining changes (Changes in shape and / or position, Strains, stresses, temperature changes) in the joining zone metallic Materials that are cohesive by welding or soldering using a reactive material system with or without Additive added become.
Stoffschlüssige Fügeverfahren für metallische Werkstoffe und ihre vorteilhaften Ausgestaltungen sind im Stand der Technik hinlänglich bekannt.Cohesive joining process for metallic Materials and their advantageous embodiments are in the state the technology is sufficient known.
Die
Erfindung bezieht sich auf ein in der
Daneben
ist aus der
Faser-Bragg-Gitter
sind optische Sensoren, die sich zur Messung von Dehnungen und Temperaturänderungen
(durch Dehnung) eignen. Das Prinzip der Faser-Bragg-Gitter beruht
darauf, dass die Eigenschaften des durch eine optische Faser geführten Lichts
durch die zu messende physikalische Größe moduliert werden. Die in
einer Faser integrierten Bragg-Gitter
haben die Eigenschaft, Licht einer bestimmten Wellenlänge, die
durch die Gitterparameter festgelegt wird, zu reflektieren (
Beim konventionellen stoffschlüssigen Fügen von metallischen Werkstoffen durch Schweißen und Löten ist die Verwendung von Faser-Bragg-Gittern für die Überwachung von Form- und/oder Lageänderungen, Dehnungen, Spannungen, Temperaturänderungen in der Fügezone der zu fügenden Werkstoffe jedoch problematisch, da für eine relativ lange Zeit im Schmelz- und/oder Lötbad und somit in der Fügezone hohe Temperaturen wirken. Dies würde zu einer irreversiblen Beschädigung der optischen Faser führen. Darüber hinaus werden Faser-Bragg-Gitter bei direkter Belichtung durch den Laserstrahl oder durch den Lichtbogen beschädigt.At the conventional cohesive Joining of Metallic materials by welding and brazing is the use of Fiber Bragg gratings for The supervision changes in shape and / or position, Strains, stresses, temperature changes in the joining zone of the to be joined materials However, problematic, there for a relatively long time in the melting and / or soldering bath and thus in the joining zone high Temperatures act. This would to irreversible damage lead the optical fiber. About that In addition, fiber Bragg gratings become with direct exposure through the laser beam or through the arc damaged.
Aufgabe der vorliegenden Erfindung ist es deshalb, die genannten Nachteile zu überwinden und ein Verfahren bereitzustellen, mit dem bereits während des eigentlichen stoffschlüssigen Fügeverfahrens und auch beim Health- und/oder Life-Cycle-Monitoring die Veränderungen (Form- und/oder Lageänderungen, Dehnungen, Spannungen, Temperaturänderungen) in der Fügezone metallischer Werkstoffe, die stoffschlüssig mittels Schweißen oder Löten unter Verwendung eines reaktiven Werkstoffsystems mit oder ohne Zusatzstoff gefügt werden, bestimmt werden können.task Therefore, the present invention is the disadvantages mentioned to overcome and to provide a method with which already during the actual cohesive joining process and also in health and / or life-cycle monitoring the changes (Changes in shape and / or position, Strains, stresses, temperature changes) in the joining zone metallic Materials that are cohesive by welding or soldering using a reactive material system with or without Additive added can be determined.
Erfindungsgemäß gelingt die Lösung dieser Aufgabe mit den Merkmalen des ersten Patentanspruches. Vorteilhafte Ausgestaltungen der erfindungsgemäßen Lösung sind in den Unteransprüchen angegeben.According to the invention succeeds the solution this task with the features of the first claim. advantageous Embodiments of the solution according to the invention are specified in the subclaims.
Der in der Erfindung verfolgte Ansatz stellt das stoffschlüssige Fügen metallischer Werkstoffe mit der so genannten „reaktiven Nanotechnologie" dar. In Folge einer selbst fortschreitenden Hochtemperatursynthese eines nanostrukturierten reaktiven Werkstoffsystems wird die zum Fügen erforderliche Wärme direkt in der Fügezone freigesetzt. Das reaktive Werkstoffsystem kann z. B. eine Multilayerfolie, bestehend aus einer Vielzahl von 10–30 nm starken Einzelschichten (Folien oder Pasten mit nanostrukturierten Partikeln, die exotherm reagieren) aus Aluminium und Nickel, die alternierend zu einer Gesamtdicke von 10–500 μm aufgetragen wurden, sein.The approach followed in the invention represents the cohesive joining of metallic materials with the so-called "reactive nanotechnology." As a result of a self-advancing high-temperature synthesis of a nanostructured reactive material system, the heat required for joining is released directly in the joining zone. B. a multilayer film consisting of a variety of 10-30 nm thick Single layers (films or pastes with nanostructured particles that react exothermically) of aluminum and nickel, which were applied alternately to a total thickness of 10-500 microns, be.
Nach dem Starten der exothermen Reaktion, beispielsweise durch eine punktuelle Erwärmung mit Hilfe eines Funken, einer Flamme, einer Widerstanderwärmung oder einem Laserstrahl des reaktiven Werkstoffsystems, tritt eine Selbstfortschreitung auf. Die bei der exothermen Reaktion entstehende Wärme führt entweder zum Aufschmelzen des in der Fügezone vorhandenen Zusatzwerkstoffes (Lot) oder zum Aufschmelzen des zu fügenden Werkstoffes bzw. zu einer Diffusionsverbindung ohne flüssige Phase. Aufgrund der hohen Prozessgeschwindigkeit von bis zu 30 m/s und der geringen insgesamt freigesetzten Energie werden die zu fügenden Werkstoffe in der Fügezone nur kurzzeitig erwärmt. Ungefähr 20 ms nach Reaktionsstart sind sie dann wieder auf Raumtemperatur abgekühlt. Folglich unterliegen die zu fügenden Werkstoffe einer minimalen Temperaturbelastung und einem minimierten Eigenspannungsniveau.To Starting the exothermic reaction, for example by a punctual warming with the help of a spark, a flame, a resistance heating or a laser beam of the reactive material system, self-propagation occurs on. The heat generated during the exothermic reaction either leads for melting in the joint zone existing filler material (solder) or for melting the zu joined Material or to a diffusion compound without liquid phase. Due to the high process speed of up to 30 m / s and The low total released energy becomes the materials to be joined the joining zone heated only briefly. Approximately 20 ms after the start of the reaction, they are then back to room temperature cooled. Consequently, subject to be joined Materials of a minimum temperature load and a minimized Residual stress.
Über die jeweilige stöchiometrische Zusammensetzung des reaktiven Werkstoffsystems, die Dicke der Einzelschichten bzw. der Partikelgröße und die Gesamtdicke bzw. Partikelmasse, kann die Reaktionsgeschwindigkeit, die freigesetzte Energiemenge und die Fügetemperatur eingestellt und somit der Fügeprozess gesteuert werden. Entsprechend den Anforderungen gilt es, das Design des reaktiven Werkstoffsystems an die jeweilige Materialkombination der zu fügenden Werkstoffe anzupassen.About the respective stoichiometric Composition of the reactive material system, the thickness of the individual layers or the particle size and the Total thickness or particle mass, the reaction rate, set the amount of energy released and the joining temperature and thus the joining process to be controlled. According to the requirements, the design is important of the reactive material system to the respective material combination the one to be joined Adapt materials.
Erfindungsgemäß werden zusätzlich zum reaktiven Werkstoffsystem oben beschriebene Faser-Bragg-Gitter-Sensoren zur Messung von Form- und/oder Lageänderungen, Dehnungen, Spannungen, Temperaturänderungen in die Fügezone der zu fügenden Werkstoffe eingebracht, wobei die Sensoren bereits während des Fertigungsprozesses des reaktiven Werkstoffsystems direkt in dieses integriert werden können. Das reaktive Werkstoffsystem auf Folienbasis kann mit Hilfe von Dünnschichtverfahren, wie z. B. Magnetronsputtern, gefertigt werden. Dieses Vorkonfektionieren führt zu einem einfacheren Handling und Positionieren.According to the invention additionally to the reactive material system described above fiber Bragg grating sensors for measuring changes in shape and / or position, strains, stresses, temperature changes in the joining zone the one to be joined Materials introduced, the sensors already during the Production process of the reactive material system directly into this can be integrated. The film-based reactive material system can be prepared by means of Thin-film process, such as z. B. magnetron sputtering, are manufactured. This prefabrication leads to a simpler handling and positioning.
Selbstverständlich ist es aber auch möglich, die Faser-Bragg-Gitter-Sensoren und das reaktive Werkstoffsystem unabhängig voneinander in der Fügezone zu positionieren.Of course it is but it is also possible, the Fiber Bragg Grating sensors and the reactive material system independently in the joining zone position.
Die stoffschlüssige Verbindung zwischen den zu fügenden Werkstoffen wird z. B. durch das Aufschmelzen von Lot (beispielsweise Incusil) erzielt. Zum Aufschmelzen des Lotes wird die bei der exothermen Reaktion des reaktiven Werkstoffsystems freiwerdende Wärme genutzt.The cohesive Connection between the to be joined Materials is z. B. by the melting of solder (for example Incusil). To melt the solder is the exothermic Reaction of the reactive material system used released heat.
Aufgrund der hohen Prozessgeschwindigkeit von bis zu 30 m/s wird die sich nunmehr in der Fügezone befindliche Sensorik nur kurzzeitig auf Temperaturen größer ihrer Dauereinsatz-Betriebstemperatur erwärmt. Eine Beeinträchtigung ihrer Funktionen tritt dabei nicht auf. Vorteilhaft bei diesem Verfahren ist, das mit Hilfe der Sensorik bereits während des Fügevorganges auftretende Veränderungen bezüglich Form und/oder Lage bzw. Dehnung detektiert werden können.by virtue of the high process speed of up to 30 m / s will be the now in the joining zone located sensors only for a short time at temperatures greater than their Continuous use Operating heated. An impairment Their functions do not occur. An advantage of this method is the changes that occur with the help of the sensors already during the joining process in terms of Form and / or position or elongation can be detected.
Eine direkt in die Fügezone integrierte Sensorik bietet vielfältige Nutzungsmöglichkeiten. So wird die aktive Überwachung des Fügeprozesses in der eigentlichen Fügezone und eine direkte und zuverlässige Bewertung der Fügequalität ermöglicht. Dadurch kann die unter Betriebsbelastung erreichbare Festigkeit genauer als mit bisherigen Überwachungsverfahren bestimmt werden, wodurch die Sicherheitsreserven bei der Auslegung von Bauteilstrukturen reduziert und somit Leichtbaukonzepte effektiver umgesetzt werden können. Die Überwachung der Bauteilbelastung über den Fügeprozess hinaus, im Sinne eines Life-Cycle-Monitoring in der Fügezone, führt durch die Möglichkeit einer Restlebensdauerabschätzung zu weiteren Synergieeffekten, die sich im Sinne des Leichtbaus bzw. der Ressourcenschonung nutzen lassen. So wird es beispielsweise möglich, das Bauteil in einem zweiten Produktlebenszyklus weiter zu verwerten, ohne dabei sicherheitstechnische Risiken in Kauf nehmen zu müssen. Die Bauteilbelastungen werden weiterhin über die Sensorik detektiert und können so zuverlässig für die Abschätzung der Restlebensdauer herangezogen werden. Zudem ist über das Erfassen der Form- und/oder Lageänderung bzw. des Dehnungsfeldes eine exakte Vorhersage des Versagensverhaltens und die Detektion von Schädigungen möglich. Die aufgrund des Life-Cycle-Monitoring mögliche Weiterverwertung und die dadurch erreichte maximale Ausnutzung des werkstofflichen Lebensdauerpotenzials führen zu einem optimierten Umgang mit den zur Verfügung stehenden Werkstoffressourcen. Diese können zum einen in einer längeren Produktlebenszeit oder durch eine Wieder- oder Weiterverarbeitung in anderen Bauteilen zur Kostenreduktion beitragen.A directly into the joining zone integrated sensors offer a wide range of possible uses. This is how active monitoring becomes of the joining process in the actual joining zone and a direct and reliable Evaluation of the joint quality allows. Thereby the strength achievable under operating load can be more accurate as with previous monitoring procedures be determined, reducing the safety margins in the design reduced component structures and thus lightweight construction more effective can be implemented. The supervision the component load over the joining process, in the sense of a life cycle monitoring in the joining zone, leads by the possibility a residual life estimate to further synergy effects, which in terms of lightweight construction or the conservation of resources. For example possible, continue to use the component in a second product life cycle, without having to accept safety risks. The Component loads are still detected by the sensors and can so reliable for the appraisal the remaining life are used. Moreover, over the Detecting the change in shape and / or position or the strain field an exact prediction of the failure behavior and the detection of damage possible. The due to the life cycle monitoring possible reuse and the resulting maximum utilization of the material lifetime potential to lead to an optimized handling of the available material resources. these can on the one hand in a longer product life or by re-processing or further processing in other components contribute to cost reduction.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007015437A DE102007015437B3 (en) | 2007-03-28 | 2007-03-28 | Adding zone change e.g. extension, determining method for use during e.g. health and/or life-cycle-monitoring of adding zone of metallic composite material, involves measuring changes with sensor systems, which are positioned in zone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007015437A DE102007015437B3 (en) | 2007-03-28 | 2007-03-28 | Adding zone change e.g. extension, determining method for use during e.g. health and/or life-cycle-monitoring of adding zone of metallic composite material, involves measuring changes with sensor systems, which are positioned in zone |
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| Publication Number | Publication Date |
|---|---|
| DE102007015437B3 true DE102007015437B3 (en) | 2008-07-24 |
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| DE102007015437A Expired - Fee Related DE102007015437B3 (en) | 2007-03-28 | 2007-03-28 | Adding zone change e.g. extension, determining method for use during e.g. health and/or life-cycle-monitoring of adding zone of metallic composite material, involves measuring changes with sensor systems, which are positioned in zone |
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| WO2015121416A1 (en) * | 2014-02-14 | 2015-08-20 | Continental Teves Ag & Co. Ohg | Method for producing a sensor and sensor |
| WO2015121415A1 (en) * | 2014-02-14 | 2015-08-20 | Continental Teves Ag & Co. Ohg | Method for manufacturing a sensor, and sensor |
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| DE69912301T2 (en) * | 1998-11-11 | 2004-07-29 | European Community | SENSOR FOR MEASURING MECHANICAL VOLTAGES WITH FIBER OPTIC BRAGG GRIDS |
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| DE102005026625A1 (en) * | 2005-06-09 | 2006-12-14 | Volkswagen Ag | Method for monitoring quality of joint seam, uses measurement signals in common analysis method for evaluating seam quality |
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| US4806012A (en) * | 1984-08-13 | 1989-02-21 | United Technologies Corporation | Distributed, spatially resolving optical fiber strain gauge |
| DE69912301T2 (en) * | 1998-11-11 | 2004-07-29 | European Community | SENSOR FOR MEASURING MECHANICAL VOLTAGES WITH FIBER OPTIC BRAGG GRIDS |
| US6991856B2 (en) * | 2000-05-02 | 2006-01-31 | Johns Hopkins University | Methods of making and using freestanding reactive multilayer foils |
| DE10210787B4 (en) * | 2002-03-12 | 2005-02-03 | Daimlerchrysler Ag | Apparatus and method for measuring deformation and sound waves in solids |
| DE10214984B4 (en) * | 2002-04-04 | 2006-01-19 | Eads Deutschland Gmbh | Actuator and sensor system for composite structures |
| DE10326377B3 (en) * | 2003-06-12 | 2004-12-16 | Thyssenkrupp Drauz Gmbh | Laser welding sheet part to profile cross-section with concealed seam(s) involves welding seam along detected path, cooling seam(s), stimulating/heating profile, testing with sensors along test path |
| DE102005026625A1 (en) * | 2005-06-09 | 2006-12-14 | Volkswagen Ag | Method for monitoring quality of joint seam, uses measurement signals in common analysis method for evaluating seam quality |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2015121416A1 (en) * | 2014-02-14 | 2015-08-20 | Continental Teves Ag & Co. Ohg | Method for producing a sensor and sensor |
| WO2015121415A1 (en) * | 2014-02-14 | 2015-08-20 | Continental Teves Ag & Co. Ohg | Method for manufacturing a sensor, and sensor |
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