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Metal sheet shock wave forming method and device

A metal sheet and shock wave technology is applied in the field of plastic processing and forming of sheet materials, which can solve the problems of potential safety hazards, low production efficiency and low degree of automation in explosives, and achieve the effects of reducing thermal effects, prolonging service life and simple equipment.

Active Publication Date: 2019-04-12
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can provide strong enough shock waves to form the sheet metal, but its automation is low, the production efficiency is low, there are safety hazards in the process of explosive transportation and installation, and the risk factor is high

Method used

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  • Metal sheet shock wave forming method and device
  • Metal sheet shock wave forming method and device

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Embodiment Construction

[0018] The invention provides a shock wave forming method for sheet metal. The specific steps of forming a workpiece with a large area, a large thickness and a deep forming depth in the forming device of the present invention are as follows:

[0019](1) Place the sheet metal 30 on the die 19, and cover the surface of the sheet metal 30 with the absorbing layer 29, place the pressure chamber casing 22 on the absorbing layer 29, and use the pressure chamber bolt 20 to secure the pressure chamber casing The body 22 is connected to the die 19, wherein the pressure chamber bolts 20 are evenly distributed around the circumference, and the absorption layer 29 and the metal sheet 30 are compressed and fixed. Before starting to supply gas to the pressure chamber 27, check the gas pressure in the hydrogen cylinder 10 and the oxygen cylinder 11 to ensure that the gas pressure in the hydrogen cylinder 10 and the oxygen cylinder 11 is approximately equal; The pressure is higher than the pr...

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Abstract

The invention discloses a metal sheet shock wave forming method and device, and belongs to the technical field of sheet plastic machining. The metal sheet shock wave forming device includes a laser device, a laser guide system, a sheet die system, a gas supply system and a control feedback system. The metal sheet shock wave forming device uses the gas supply system to supply hydrogen and oxygen toa pressure chamber at a volume ratio of 2 to1; a pulsed laser beam emitted by the laser device irradiates on an absorption layer through the laser guide system, the absorption layer is gasified and ionized to produce high temperature and high pressure plasma, the shock wave produced due to rapid expansion of the plasma acts on a workpiece, and at the same time, the shock wave generated due to thefact that the high temperature and high pressure plasma detonates mixed gas in the pressure chamber further acts on a sheet. Through the combined action of the shock wave induced by laser and a shockwave generated by an explosion of the mixed gas, the insufficiency that large-area forming of thick plates is difficult to realize in laser shock forming can be effectively solved, and the market application prospect is good.

Description

Technical field: [0001] The device of the invention belongs to the field of plastic processing and forming of sheet metal, and in particular relates to a shock wave forming method and device for sheet metal, and is especially suitable for forming parts with thicker thickness and larger deformation area. Background technique: [0002] Laser shock forming is a new forming technology that uses the force effect of laser-induced high-amplitude shock waves to cause plastic deformation of plates. It has the characteristics of high forming flexibility, precise controllability, good material performance after forming, and no pollution. As a fast and agile advanced manufacturing technology, it has shown strong vitality in aerospace industry, automobile and mold manufacturing, shipbuilding and other fields, and has broad application prospects and great development potential. [0003] In laser shock forming, due to the limited energy of the pulse emitted by the laser, the peak pressure ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D26/06B21D26/10
CPCB21D26/06B21D26/10
Inventor 张兴权纪啸天王宇峰方光武王会廷戚晓利王涛
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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