Fast die machining method and apparatus based on laser shock wave technology

A shock wave and laser technology, applied in the field of mold processing, can solve the problems of poor explosion forming safety, difficult to control process parameters, and inability to accurately form, to improve surface quality, save processing procedures and surface treatment procedures, and workpiece fatigue resistance. and the effect of improving the resistance to stress corrosion

Inactive Publication Date: 2003-03-19
JIANGSU UNIV
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Problems solved by technology

The safety of explosive forming is poor, the process parameters are difficult to control, and the shock wave action time is as long as several milliseconds, the diffusion effect is large, and precise forming cannot be performed.
Therefore, it is not suitable to directly form thick steel plates to make molds

Method used

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  • Fast die machining method and apparatus based on laser shock wave technology
  • Fast die machining method and apparatus based on laser shock wave technology
  • Fast die machining method and apparatus based on laser shock wave technology

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Embodiment Construction

[0031] Combine below figure 1 Describe in detail the details and working conditions of the specific device proposed by the present invention.

[0032] The device includes a laser generator (1), a light guide system, an impact head (8), a work clamp system and a control system. The light guide system includes a light guide pipe (3), a total reflection mirror (4), a spherical joint head (7), a movable seat reflector (5, 6), etc., and a workpiece fixture system includes a workbench (12), a surface covering energy conversion The workpiece (10) of the body (16), the workpiece fixture (9), and the control system is composed of a computer (14), a numerical control system controller (13), and a laser displacement probe (11).

[0033] The laser generator generates laser pulses with energy ranging from 10 to 100 joules and a duration of 8 to 80 nanoseconds. The spot mode of the laser beam (2) can be a variety of modes such as fundamental mode and multimode, which are determined by the ...

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Abstract

The present invention relates to die machining and is especially the machining of stretching die and bending die with thick metal board. Laser shock wave is used as the forming force source in machining steel board die. The machining process includes rough shocking course and fine shocking course and in-situ detector with laser displacement probe is used. The equipment incldues laser generator, laser guide system, shocking head, workpiece fixture system and control system. Owing to that the laser parameters are precise and controllable, the present invention has high repeatability and is suitable for automatic production. The present invention can form large complciated die and die with precise fine part.

Description

Technical field [0001] The invention relates to the field of mold processing, in particular to a method and device for rapidly manufacturing molds based on laser shock wave technology, and is especially suitable for directly making drawing molds and bending molds by using thick metal sheets. Background technique [0002] Common rapid mold-making methods include: sample remanufacturing using RPM technology, direct numerical control processing, and steel plate molds. The sample manufactured by RPM technology is used to reproduce the mold. Due to the dimensional accuracy of the sample and the demoulding shrinkage rate of the mold material, the precision of the mold is not high, and the mold life of the low melting point alloy is short; the direct CNC machining mold is the use of CAD The drawn three-dimensional mold graphics generate the NC program, which is directly milled by the NC milling machine and then polished. Appropriate methods are combined and connected. There are cu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D26/06B23K26/00
Inventor 张永康周建忠杨继昌周明
Owner JIANGSU UNIV
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