WO2024022639A1 - Verfahren zur werkstückbearbeitung innerhalb einer bearbeitungsmaschine - Google Patents
Verfahren zur werkstückbearbeitung innerhalb einer bearbeitungsmaschine Download PDFInfo
- Publication number
- WO2024022639A1 WO2024022639A1 PCT/EP2023/063830 EP2023063830W WO2024022639A1 WO 2024022639 A1 WO2024022639 A1 WO 2024022639A1 EP 2023063830 W EP2023063830 W EP 2023063830W WO 2024022639 A1 WO2024022639 A1 WO 2024022639A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- processing
- section
- workpiece
- acceleration
- machining
- 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.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/416—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control of velocity, acceleration or deceleration
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/0869—Devices involving movement of the laser head in at least one axial direction
- B23K26/0892—Controlling the laser beam travel length
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/34—Laser welding for purposes other than joining
- B23K26/342—Build-up welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/34—Director, elements to supervisory
- G05B2219/34175—Overlap, between two blocks, continuous, smooth speed change, movement
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/43—Speed, acceleration, deceleration control ADC
- G05B2219/43009—Acceleration deceleration for each block of data, segment
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/45—Nc applications
- G05B2219/45138—Laser welding
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/45—Nc applications
- G05B2219/45164—Laser refurbish with laser beam and metal powder
Definitions
- the invention relates to a method for workpiece machining within a processing machine, in which a tool is moved relative to a workpiece, the tool or the workpiece being moved in a travel direction predetermined by a movement path at a predeterminable travel speed, the movement path being divided into processing sections and Acceleration sections is divided, wherein within the machining sections between a starting point and an end point of the machining section, workpiece machining is carried out with a predeterminable machining traversing speed in a machining traversing direction.
- processing machine also includes cutting machines, painting machines, milling machines or laser deposition welding machines. What all processing machines have in common is that they have an axis system with which either the tool or the workpiece is moved in order to achieve the movement necessary for the machining process. In addition to the travel speed, further process-specific processing parameters are specified for the respective processing section for workpiece processing.
- the laser power, a degree of defocusing of the laser radiation, a distance to the workpiece or a powder mass flow are specified.
- the specified processing parameters can be specified at the starting point and at the end point of the processing section, so that the processing parameters and / or the travel speed along the processing route can be adjusted in a time- or spatially resolved manner.
- the kinematics of the processing machines are often limited due to the masses to be moved and the resulting inertial forces in such a way that the maximum acceleration and thus the increase in speed along a defined section of the movement path is limited by the maximum permissible jerk caused by the machine, so that the specified ones are at a starting point of the processing section Machining parameters are not reached.
- a machining traversing speed predetermined at the starting point of the machining path is undershot due to insufficient acceleration and the machining process is carried out with the actual machining parameters that differ from the predetermined target machining parameters.
- the result is a machining process that is carried out under different process conditions, which can directly lead to a different machining result.
- Laser deposition welding is used in known variants for coating or repairing a workpiece or for the additive manufacturing of components.
- a powdery additional material for example a metal powder, is introduced into the interaction zone of the laser radiation with the metal powder using a powder feed nozzle and melted there using laser radiation, so that a bond is formed between the melted metal powder and the workpiece or the layer that has already been applied arises.
- extreme high-speed laser deposition welding EHLA for short
- the powdery filler material is melted by the concentrated laser radiation before it enters the melting pool created by the laser radiation. This allows very high travel speeds in the range of 10 m/min to 500 m/min to be achieved and layers with a layer thickness in the range of 10 pm to 250 pm per layer can be produced.
- the workpiece can be moved relative to the laser beam and the powder gas jet, so that a melting trace is created on the workpiece surface.
- a melting trace is created on the workpiece surface.
- three-dimensional structures can be created additively. Such structures are built either on top of existing ones Components or when creating entire objects on a workpiece support plate, which then serves as a base.
- the object of the present invention is to provide a method strategy for a machining process with which the machining of a workpiece can be carried out at a starting point of the machining route with predetermined machining parameters and at travel speeds of 10 m/min to 500 m/min.
- This object is achieved according to the invention in that the traversing speed is adjusted along the acceleration section defined by the end point of a first processing section and the starting point of a second processing section so that the predetermined processing traversing speed is reached at the starting point of the processing section.
- an advantageous implementation of the inventive concept provides that both the tool and the workpiece are moved for the movement of the tool relative to the workpiece, with the tool and the workpiece in Each can be moved in different travel directions or at different travel speeds. Thus a doubling of the processing speed can be achieved.
- the traversing movement of the tool and/or the workpiece takes place in three spatial directions (x, y, z).
- the decisive factor is the relative movement between the workpiece and the processing tool of the processing machine.
- a movement of the workpiece and/or a movement of the processing tool takes place.
- the movements are carried out in the three spatial directions (x, y, z), preferably path movements.
- the acceleration section is divided into several acceleration path sections, the acceleration path sections each being predeterminable by a geometric shape and a length of the acceleration path section.
- a particularly flexible design of the acceleration sections is therefore possible.
- the geometric design of the acceleration section can take place, for example, as a straight line, as a segment of a circle with a certain radius, as a section of a hyperbola, and so on.
- an advantageous embodiment of the method according to the invention provides that the geometric shape and the length of the acceleration path sections depend on the starting point and the end point of the machining section specified processing speeds. This makes it possible to design the acceleration path sections with the aim of constant travel speeds, constant acceleration, reduced path deviation in the process, reduced jerk or shortened processing time.
- the acceleration section extends in all three spatial directions, so that there is no plane in which the acceleration section lies completely.
- at least one acceleration path section is arranged in an acceleration path plane which differs from a processing path plane comprising the starting point or the end point of the processing section.
- An acceleration path section can be arranged on the processing section and have a geometric shape so that the travel speed along the acceleration section can be achieved, for example, by a constant acceleration of the tool or the workpiece. This can be done, for example, through the geometric design as a circle with a large radius or through a hyperbolic section, so that the machine-related maximum permissible acceleration can be undercut.
- the starting point of the processing section in the direction of travel Upstream acceleration path section is aligned such that, viewed in the travel direction, a transition angle included by the acceleration path section and the machining travel direction in the starting point of the processing section is a value of 0 degrees to 1 degree.
- the upstream acceleration path section can be arranged tangentially to the processing section, which is designed to be circular, elliptical or deviating from a straight line.
- the upstream acceleration path section is connected to the processing section without any offset, so that a passage over the starting point can be carried out without acceleration and without sudden traversing movements.
- an advantageous embodiment of the invention provides that the workpiece machining is carried out within the machining section with a machining travel speed in the range of 10 m/min to 500 m/min.
- the processing machine is designed in such a way that extreme high-speed deposition welding (EHLA) can be carried out with the processing machine.
- EHLA extreme high-speed deposition welding
- the workpiece is moved in the three spatial directions (x, y, z) relative to a welding head arranged parallel to the workpiece carrier.
- a powder nozzle is used as a tool through which a powdery Additional material is injected into the laser radiation before the melted powder reaches the melt bath created on the workpiece surface. This means that very thin layers with layer thicknesses in the range of 10 pm to 250 gm per layer are created on the workpiece surface.
- Fig. 1 a schematic representation of a movement path specified on a workpiece in a top view of the workpiece
- Fig. 2 a schematic representation of a movement path specified on the workpiece in a perspective view.
- Fig. 1 shows a workpiece 1 in a schematic representation in a top view.
- a movement path 3 shown schematically on a workpiece surface 2 of the workpiece 1 is shown.
- a tool (not shown) is moved along the movement path 3 at a predefinable travel speed in a travel direction predetermined by the movement path 3.
- the movement path 3 is divided into processing sections 4 and acceleration sections 5.
- the machining sections 4 are each defined by a starting point 6 and an end point 7, with workpiece machining being carried out in the machining section 4 with the tool, not shown, at a machining traversing speed.
- a first acceleration section 11 is designed to be semicircular.
- a second acceleration section 12 is divided into two acceleration path sections 10. The first acceleration path section 10 is designed as a circular segment and the second acceleration path section 10 is designed as a straight line.
- the second acceleration path section lO which is located in front of the starting point 6 of a third processing section 13 in the direction of travel, is arranged on the third processing section 13 without any offset and without interruption in the direction of travel, so that the tool, not shown, moves from the acceleration path section 10 of the second acceleration section 12 into the third processing section 13 without any sudden movement movements will proceed.
- the workpiece 1 is shown in a schematic representation in a perspective view.
- the movement path 3 shown schematically on workpiece surfaces 2 of workpiece 1 is shown.
- the tool is moved along the movement path 3 at the predetermined travel speed in the travel direction specified by the movement path 3.
- the ones in Fig. 2 shown movement path 3 is in the first processing section 8, a second Processing section 9 and divided into acceleration sections 5.
- the acceleration section 5 is divided into two acceleration path sections 10.
- the second acceleration path section 10 is arranged in an acceleration path plane which differs from a processing path plane comprising the starting point or the end point of the processing section.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Human Computer Interaction (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Numerical Control (AREA)
- Laser Beam Processing (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Machine Tool Units (AREA)
- Gear Processing (AREA)
Abstract
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP23729343.6A EP4562481A1 (de) | 2022-07-26 | 2023-05-23 | Verfahren zur werkstückbearbeitung innerhalb einer bearbeitungsmaschine |
| IL318572A IL318572A (en) | 2022-07-26 | 2023-05-23 | Method for machining workpieces within a machining machine |
| CA3263382A CA3263382A1 (en) | 2022-07-26 | 2023-05-23 | Method for machining workpieces within a machining machine |
| KR1020257006454A KR20250067807A (ko) | 2022-07-26 | 2023-05-23 | 가공 기계 내에서 워크피스들을 기계가공하기 위한 방법 |
| US18/998,382 US20260029778A1 (en) | 2022-07-26 | 2023-05-23 | Method for machining workpieces within a machining machine |
| JP2025504609A JP2025524169A (ja) | 2022-07-26 | 2023-05-23 | 加工機械内においてワークピース加工するための方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU502569A LU502569B1 (de) | 2022-07-26 | 2022-07-26 | Verfahren zur Werkstückbearbeitung innerhalb einer Bearbeitungsmaschine |
| LULU502569 | 2022-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024022639A1 true WO2024022639A1 (de) | 2024-02-01 |
Family
ID=86732192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2023/063830 Ceased WO2024022639A1 (de) | 2022-07-26 | 2023-05-23 | Verfahren zur werkstückbearbeitung innerhalb einer bearbeitungsmaschine |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20260029778A1 (de) |
| EP (1) | EP4562481A1 (de) |
| JP (1) | JP2025524169A (de) |
| KR (1) | KR20250067807A (de) |
| CA (1) | CA3263382A1 (de) |
| IL (1) | IL318572A (de) |
| LU (1) | LU502569B1 (de) |
| WO (1) | WO2024022639A1 (de) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69624093T2 (de) * | 1995-10-24 | 2003-01-30 | Fanuc Ltd., Oshino | Verfahren und gerät für eine numerische steuerung von werkzeugmaschinen mit achsbewegung |
| EP3623887A1 (de) * | 2018-09-12 | 2020-03-18 | Siemens Aktiengesellschaft | Zeitoptimierte bewegungsführung zwischen bahnabschnitten |
-
2022
- 2022-07-26 LU LU502569A patent/LU502569B1/de active
-
2023
- 2023-05-23 CA CA3263382A patent/CA3263382A1/en active Pending
- 2023-05-23 KR KR1020257006454A patent/KR20250067807A/ko active Pending
- 2023-05-23 US US18/998,382 patent/US20260029778A1/en active Pending
- 2023-05-23 JP JP2025504609A patent/JP2025524169A/ja active Pending
- 2023-05-23 WO PCT/EP2023/063830 patent/WO2024022639A1/de not_active Ceased
- 2023-05-23 EP EP23729343.6A patent/EP4562481A1/de active Pending
- 2023-05-23 IL IL318572A patent/IL318572A/en unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69624093T2 (de) * | 1995-10-24 | 2003-01-30 | Fanuc Ltd., Oshino | Verfahren und gerät für eine numerische steuerung von werkzeugmaschinen mit achsbewegung |
| EP3623887A1 (de) * | 2018-09-12 | 2020-03-18 | Siemens Aktiengesellschaft | Zeitoptimierte bewegungsführung zwischen bahnabschnitten |
Also Published As
| Publication number | Publication date |
|---|---|
| CA3263382A1 (en) | 2025-06-07 |
| US20260029778A1 (en) | 2026-01-29 |
| EP4562481A1 (de) | 2025-06-04 |
| LU502569B1 (de) | 2024-01-26 |
| IL318572A (en) | 2025-03-01 |
| JP2025524169A (ja) | 2025-07-25 |
| KR20250067807A (ko) | 2025-05-15 |
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