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.

Active Publication Date: 2020-04-28
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are still some defects in the micro-forming of workpieces in this method, such as the influence of scale effect on micro-plastic forming still exists

Method used

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

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Embodiment Construction

[0041] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0042] In describing the present invention, it is to be understood that the terms "central", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "axial", The orientation or positional relationship indicated by "radial", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description , rather than indicating or implying that the device or elem...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/356B23K26/06B23K26/60B23K26/70
CPCB23K26/0643B23K26/0648B23K26/356B23K26/60B23K26/702
Inventor 沈宗宝张金殿张蕾李品王亚元王霄刘会霞
Owner JIANGSU UNIV
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