Method and equipment for forming plate of moderate thickness through laser shot blast

A laser peening forming and laser peening technology, which is applied in laser welding equipment, instruments, digital control, etc., can solve the problems of limited plate thickness, increased yield strength, and poor plastic flow of materials, achieving low surface roughness, Good finish and improved efficiency

Inactive Publication Date: 2005-11-16
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Since the laser shock forming process is accompanied by surface strengthening, the yield strength of the plate is increased, and subsequent deformation is difficult, resulting in poor plastic flow of the mat

Method used

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  • Method and equipment for forming plate of moderate thickness through laser shot blast
  • Method and equipment for forming plate of moderate thickness through laser shot blast
  • Method and equipment for forming plate of moderate thickness through laser shot blast

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Embodiment Construction

[0030] Combine below figure 1 Describe in detail the details and working conditions of the specific device proposed by the present invention.

[0031] The device includes a laser generator (1), a light guide system, a shot blasting head (6), a work clamp system and a control system. The crystal used in the laser is Nd:YAG, which generates laser pulses with an energy of 10-60 joules and a duration of 5-30 nanoseconds. The spot mode of the laser beam (13) can be a fundamental mode, a multi-mode, etc. It is regulated and controlled by the laser controller (11). The light guide system includes a light guide wall (2), a return mirror (3), and a light beam conversion device (4). The shot blasting head (6) is equipped with multiple focusing mirrors and optical masks (5), which can move vertically , the spot size can be changed by adjusting the size of the focusing mirror and the optical mask (5). The workpiece fixture system includes a workpiece fixture (8) and a multi-axis linkag...

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PUM

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Abstract

A laser blasting apparatus for shaping on the surface of medium-thick plate is composed of laser device, optical guide system, laser blasting head, fixture system for workpiece, and control system. Its shaping process includes computer simulation of the stress field distribution according to the curved surface shape to be processed, optimizing it to obtain the distribution of shock wave pressure and blasting tracing on the surface of plate, automatically choosing the parameters of laser pulse optical beam converte and optical mask, writing control program, generating strong short laser pulses, covering them to several pulse clusters, passing through optical mask, acting on energy converting body on the surface of workpiece to obtain shock waves, acting on the surface of workpiece for shaping.

Description

technical field [0001] The invention relates to the field of mechanical manufacturing, in particular to a plate forming method and device based on high-energy pulse laser peening technology, which is suitable for the forming process of medium-thick plate parts with smooth curvature requirements. It is especially suitable for the processing of small-curvature formed parts of medium-thick plates that are difficult to form or cannot be formed at all by conventional methods. Background technique [0002] Plate forming parts are used in a wide range of applications in the aerospace and defense industries. Large-scale structural components on aircraft, such as wings, skins, integral panels, and turbine engine blades, require precise and complex curvature shapes and maintain the original shape of the material in order to withstand effective structural loads and meet aerodynamic performance. Structural characteristics; the forming process of missiles, rockets in the defense industr...

Claims

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Application Information

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IPC IPC(8): B23K26/18
Inventor 周建忠张永康张兴权舒洪红冯爱新杨继昌
Owner JIANGSU UNIV
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