Laser impact grain refinement pretreatment auxiliary laser dynamic flexible micro-forming method and device

A technology that refines grains and assists lasers. It is applied in laser welding equipment, welding equipment, metal processing equipment, etc. It can solve the problems of scale effect and other problems, and achieve the effects of accurate and controllable parameters, saving production costs, and great flexibility.
CN111069780AActive Publication Date: 2020-04-28JIANGSU UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU UNIV
Publication Date
2020-04-28

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Abstract

The invention discloses a laser impact grain refinement pretreatment auxiliary laser dynamic flexible micro-forming method and device, and relates to the field of laser processing and forming. The device comprises a laser loading system, a plastic forming system, an automatic mold changing system and a clamp system. According to the method, a workpiece is subjected to laser impact pretreatment toachieve grain refinement and then subjected to laser dynamic flexible micro-forming, and grain refinement pretreatment and forming machining are achieved through a movable mold core and a mold core supporting body. According to the method and device, the novel micro-mold is used for carrying out laser impact grain refining pretreatment before laser dynamic flexible micro-forming, so that the forming capability is improved, the micro-forming precision, the surface quality and the forming limit are further improved, and failure behaviors such as breakage caused by a size effect phenomenon are avoided; and meanwhile, the novel automatic mold changing system for the micro mold can avoid secondary clamping, so that the production cost is effectively saved.
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Description

technical field

[0001] The invention belongs to micro-electromechanical system (MEMS) processing technology and laser micro-processing technology, in particular to a method and device for laser dynamic flexible micro-forming assisted by laser shock refinement crystal grain pretreatment. Background technique

[0002] With the rapid development of modern industrial technology, the rapid development of science and technology, the innovation of advanced manufacturing concepts, and the continuous improvement of market requirements for technological products, in fields such as aerospace, precision instruments, and biomedicine, the trend of product miniaturization is increasing. Accelerating, the demand for micro and small parts is also increasing, especially the rapid development of the field of micro-electromechanical systems (MEMS). Miniaturization is an important direction of the development of contemporary science and technology, and microforming technology has become a key re...

Claims

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