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Laser-assisted additive and subtractive composite machining device and method

A laser-assisted and composite processing technology, which is applied in laser welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of high manufacturing cost and large floor space of laser additive and subtractive material composite manufacturing platforms, and achieve optimized thermal cycle curves , Improve the quality and refine the grain

Pending Publication Date: 2021-08-20
广东中科德弗激光科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem solved by the present invention is that the manufacturing cost of the laser additive-subtractive material composite manufacturing platform in the prior art is high, the floor area is large, and it is difficult to solve at least one aspect of on-site operation

Method used

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  • Laser-assisted additive and subtractive composite machining device and method
  • Laser-assisted additive and subtractive composite machining device and method
  • Laser-assisted additive and subtractive composite machining device and method

Examples

Experimental program
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Effect test

Embodiment 1

[0102] This embodiment provides a composite processing method based on a laser-assisted additive and subtractive material composite processing device for additively manufacturing a multilayer metal deposition structure on the surface of a workpiece to be processed, which specifically includes the following steps:

[0103] 1.1. Set the optimized milling tool 31 processing parameters: milling tool 31 feed speed V 1 , Milling tool 31 speed V 2 , Milling depth H 1 , the height H between the bottom of the suction pipe 122 and the surface of the workpiece to be processed 2 ;Laser parameters: the distance L between the laser focus O and the surface of the workpiece to be processed 2 , laser power, laser moving speed, and the laser moving speed and the feed speed V of the milling tool 31 1 Equal; the relative position parameter between the milling tool 31 and the laser head 21: the horizontal distance L between the milling tool 31 and the laser focus O 1 ; Wire feeding parameters:...

Embodiment 2

[0108] This embodiment provides a laser-assisted composite processing device for adding and subtracting materials, and a composite processing method for additively manufacturing a gradient structure metal deposition structure on the surface of the workpiece to be processed. The processing method provided by this embodiment is the same as the processing method in Embodiment 1. , the difference is that the last step takes the following approach:

[0109] After the first layer of additive manufacturing is completed, the laser-assisted additive and subtractive composite processing device is raised by the manipulator 6 to an average height of the deposition layer, and steps 1.1 to 1.3 are repeated, that is, after the previous metal additive manufacturing is completed, The components of welding wire and powder elements need to be replaced, and the processing parameters of the milling tool 31, the laser parameters, the relative position parameters between the milling tool 31 and the l...

Embodiment 3

[0111] This embodiment also provides a composite processing method for repairing defects on the surface of the punch or punch based on a laser-assisted composite processing device for adding and subtracting materials, so as to solve defects such as cracks and stains on the surface of the punch or punch. The processing method that example provides is identical with the processing method in embodiment 1, difference is: the workpiece to be processed is punch or punch, and last step adopts following method:

[0112] After the first additive manufacturing layer is completed, the laser-assisted additive and subtractive composite processing device is raised by the manipulator 6 to an average height of the deposition layer, and steps 1.1 to 1.3 are repeated, that is, after the previous metal additive manufacturing is completed, It is necessary to replace the components of the welding wire and powder elements, and adjust the processing parameters of the milling tool 31, the laser parame...

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Abstract

The invention provides a laser-assisted additive and subtractive composite machining device and method. The device comprises a frame body, a laser-assisted additive manufacturing assembly and a subtractive cutting assembly, wherein the laser-assisted additive manufacturing assembly comprises a laser head and a wire feeding nozzle, a first guide rail in the vertical direction is arranged on the side face of the laser head, and the wire feeding nozzle is arranged at the tail end of the laser head, and suitable for feeding a welding wire to a laser focus of an additive manufacturing laser source; the frame body comprises a support and a bracket, the bracket and the laser head are arranged in parallel; a first movement unit suitable for being matched with the first guide rail is arranged on the side face of the bracket; the first movement unit and the first guide rail are arranged in a sliding mode so as to adjust the laser head to move in the vertical direction relative to the bracket; the bracket is perpendicularly arranged on the support and connected with the support in a sliding mode, so as to adjust the distance between the support and the laser head; and the subtractive cutting assembly comprises a milling tool, and the milling tool is parallel to the laser head and arranged on the side, away from the bracket, of the support. The device is compact in structure, low in manufacturing cost and suitable for field operation.

Description

technical field [0001] The invention relates to the technical field of additive and subtractive material manufacturing of metal parts, in particular to a laser-assisted additive and subtractive material composite processing device and method. Background technique [0002] Traditional subtractive manufacturing methods are gradually unable to meet the increasingly urgent needs of high-end parts design and rapid manufacturing in the industrial field in recent years. In recent years, the emerging additive manufacturing technology has well made up for the shortcomings of traditional manufacturing methods due to its series of advantages, such as speed, flexibility, and cost savings, and is suitable for the rapid manufacture of complex parts. [0003] Compared with selective laser melting metal 3D printing (SLM) technology, laser-assisted additive manufacturing (LAAM) technology is especially suitable for the manufacturing and repair process of large-scale metal parts. In order to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/00B23P23/04
CPCB23K26/0093B23P23/04
Inventor 钟小兵韩冰汪汶铮李艳丽
Owner 广东中科德弗激光科技有限公司
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