Method and device of laser impact sheet metal mouldless shaping based on liquid crystal mask

A laser shock and mask technology, used in laser welding equipment, manufacturing tools, welding equipment, etc., can solve problems such as reducing forming efficiency, achieve ultra-fast plastic deformation, improve work efficiency and yield, and reduce costs.

Inactive Publication Date: 2007-07-18
JIANGSU UNIV
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  • Abstract
  • Description
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Problems solved by technology

Since it is necessary to control the impact force of each point of laser shock (that is, the process parameters of each point are different, such as laser pulse energy, beam diameter, repetition frequency, etc.) It is difficult to achieve accurate impact force at each point by adjusting the process parameters of each point, and it will lead to a decrease in forming efficiency

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  • Method and device of laser impact sheet metal mouldless shaping based on liquid crystal mask
  • Method and device of laser impact sheet metal mouldless shaping based on liquid crystal mask

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Embodiment Construction

[0026] The details and working conditions of the specific device proposed by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] Fig. 1 is the device that carries out the dieless precision forming of laser shock thin plate with the present invention, comprises successively connected laser generator control device 1, laser generator 2, beam expander system 4, liquid crystal display screen 5 and display screen control device 6, focusing System 7 and workpiece clamping system, and digital control system 13 connected with laser generator control device 1 , display screen control device 6 , workbench control device 15 . The beam expander system 4 is composed of a group of concave lenses and a convex lens with a large curvature; the focusing system 7 is composed of a group of convex lenses and a concave lens with a large curvature; the workpiece fixture system includes an upper clamping plate 8, a constraining layer 9, a las...

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Abstract

The present invention belongs to the field of machinery manufacture technology, in particular, it relates to a laser impacted sheet formation method base on liquid crystal mask and its equipment. It is applicable to precision formation of metal sheet (whose thickness is 50 micrometers-4 mm). The invented equipment includes successively-connected laser generator control device, laser generator, beam-expanding system, liquid crystal display screen and display screen control device, focusing system, workpiece clamping apparatus system and digital control system connected with laser generator control device. Display screen control device and working table control device.

Description

Technical field: [0001] The invention relates to the field of mechanical manufacturing, in particular to a method and device for forming a thin plate by laser shock based on a liquid crystal mask, which is suitable for precision forming of a thin metal plate (thickness 50μm-4mm), especially suitable for ultra-thin sheet materials that are difficult to form by conventional methods , such as corrugated diaphragms, bouncing diaphragms, stainless steel, titanium alloy thin plate small curvature forming parts, etc. made of precision elastic alloys. Background technique: [0002] There are many plastic forming methods for sheet metal, including stamping, explosive forming, shot peening and so on. The most common stamping and forming to produce various metal parts has the disadvantages of high mold cost and long production cycle, and it can only be used for low-carbon thin plates, aluminum alloys, copper and some brass. Due to the influence of strain rate, the forming limit Restri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/00B23K26/18B23K26/42B23K26/06B23K26/04B21D11/20C21D10/00B23K26/064B23K26/70
Inventor 鲁金忠张永康李国杰王伟杨超君周建忠顾永玉
Owner JIANGSU UNIV
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