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A method for dieless forming of laser heating induced isostatically loaded sheet metal

A technology of laser heating and moldless forming, which is applied in the direction of forming tools, metal processing equipment, manufacturing tools, etc., can solve problems such as parts that are difficult to form, and achieve the effects of simplifying the processing procedure, increasing the forming limit, and improving processing efficiency

Inactive Publication Date: 2017-01-04
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complexity of material properties and heating conditions, it is still a big problem for laser thermal stress forming technology to truly control the accuracy of plate deformation, and it is also difficult to form parts with complex shapes and large deformations.

Method used

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  • A method for dieless forming of laser heating induced isostatically loaded sheet metal
  • A method for dieless forming of laser heating induced isostatically loaded sheet metal

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] Such as figure 1 As shown, the plateless forming device used in the present invention includes a loading mechanism 1, a medium pressure cylinder 2, a blank holder 4, a laser scanning galvanometer system 5, and a translation mechanism. The translation mechanism includes a laser moving Y-axis mechanism 6 and a laser moving X-axis mechanism 7; the laser moving X-axis mechanism 7 can slide along the X-axis direction, the top of the laser moving Y-axis mechanism 6 is connected to the bottom of the laser moving X-axis mechanism 7 and can slide along the Y-axis direction, and the laser scanning galvanometer The system 5 is fixed on the bottom of the laser moving Y-axis mechanism 6; the medium pressure cylinder 2 is filled with a liquid medium 3, and the liquid medium 3 is a non-flammable liquid, such as oil-in-water, water glycol, etc.; the loading mech...

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Abstract

The invention discloses a laser heating induced isostatic pressing loading type die-less forming method of plates. The method comprises the following steps of: partially heating the plates through laser; applying isostatic pressing on liquid mediums; finishing the die-less forming of the plates by accumulating partial deformations of the plates. According to the laser heating induced isostatic pressing loading type die-less forming method of the plates, the shortcomings that the forming accuracy of a laser thermal stress forming method is not high and intricately shaped parts are difficult to form are overcome, and the machining speed and accuracy are accurately controlled, so that the size accuracy and good surface quality of the formed plates are higher, and the intricately shaped parts can be formed; the forming limit is improved, thus the machining procedures are simplified, the number of the machining procedures is reduced, and the machining efficiency is improved.

Description

technical field [0001] The invention relates to a method for forming a sheet material, in particular to a method for forming a sheet material without dies induced by laser heating and isostatic pressure. Background technique [0002] As we all know, plastic forming of sheet metal, as one of the main methods of sheet metal forming, has occupied a very important position in the entire national economy and is widely used in aerospace, shipbuilding, automotive panels, electronics, instrumentation and other production industries. With the development of laser processing technology, laser thermal stress forming technology, as a new type of metal sheet plastic forming technology, has broad potential application prospects in aerospace, automobile and other fields. [0003] Laser thermal stress forming is formed by using the thermal effect generated by laser irradiation on the surface of the material, that is, when a high-energy laser beam is used to scan a metal sheet, a large gradi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D26/021B21D37/16
Inventor 李湘生孙红伟徐一峰杨震
Owner ZHEJIANG SCI-TECH UNIV
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