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Laser impact tiny bulk forming method and apparatus for tiny apparatus

A laser shock, micro-volume technology, used in laser welding equipment, welding equipment, metal processing equipment, etc.

Inactive Publication Date: 2011-09-14
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There have been many patent technology reports on laser shock-based forming and material modification at home and abroad, such as Chinese patents 01134063.0, 200510094159.5, 02138336.7, 200610039505.4, 200610096475.0, US patents US334612, US3850698, US4401477, US6554921, US406 A-58120716, JP 2006-320907, etc., but they all focus on how to use laser shock forming to improve the residual compressive stress of metal materials and devices, and macroscopic forming methods based on laser shock, such as punching, bending, rapid prototyping molds, Forming methods such as pressing and deburring do not involve the field of dynamic high-pressure microplastic forming under ultra-high strain rate conditions

Method used

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  • Laser impact tiny bulk forming method and apparatus for tiny apparatus
  • Laser impact tiny bulk forming method and apparatus for tiny apparatus
  • Laser impact tiny bulk forming method and apparatus for tiny apparatus

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Experimental program
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Effect test

specific Embodiment approach 1

[0043] Combine figure 1 , figure 2 with Figure 4 The laser shock micro-volume forming method of micro devices is as follows:

[0044] According to the shape, size and precision of the micro-devices that need to be micro-formed, the punch 19 and the concave mold 20 are designed and processed. The backing plate 15 is installed in the upper mold base 14, and then the punch 34 is placed on the upper mold base 14. In the mold base 14, the concave mold 20 is placed on the lower mold base 24, and the lower mold base 24 is placed on the workbench 22. The guide mechanism is respectively connected with the upper mold base 14 and the lower mold base 24; the computer 16 is used to control the workbench 22 X, Y, and Z-direction movement, adjust the relative position of the male mold 19 and the female mold 20 and the centering of the male mold 19 and the female mold 20 in the micro plastic forming system, if the male mold 19 and the female mold 20 have passed a period of time After forming, ...

specific Embodiment approach 2

[0045] Combine figure 1 , figure 2 , Figure 4 , Figure 5 with Image 6 The laser shock micro-volume forming method of micro devices is as follows:

[0046] According to the shape, size and precision of the micro-devices to be micro-shaped, the convex mold 34 and the concave mold 36 with the periodic repeating array structure are designed and processed. The convex mold 34 is distributed with the convex mold array 37 of the repeated structure and the concave mold 36 Distributed with an array of concave mold cavities 35 in the form of repeated structures, install the micro-forming system according to the first embodiment; use the computer 16 to control the movement of the worktable 22 in X, Y and Z directions, and adjust the male mold 34 and the female mold 36 in the micro-plastic forming system The relative position of the male mold 34 and the female mold 36, if the male mold 34 and the female mold 36 are formed after a period of time due to the wear of the mold, they need to be...

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Abstract

The invention provides a laser impulse micro-bulk forming method and a device thereof, being suitable for the micro-bulk forming of a planchet and belonging to the laser micro-processing field and micro-bulk forming field. The forming method is as follows: impulse wave induced by laser is used as a forming force source for micro-device micro-bulk forming; laser burst generated by a laser generator according to requirements is irradiated at a flying-piece surface layer passing through a transparent restraint layer through an external light path system; a high temperature and high pressure plasma body is generated and the impulse wave is formed; overhigh pressure of the impulse wave is used for driving the flying-piece and a micro-plastic forming system connected with a flying piece; a micro-workpiece is pressed; the micro-bulk forming of the workpiece is finished. The device applied to the method comprises six parts of the laser generator, an external light path system, an induction impulse wave generation system, a micro-plastic forming system, a control system and an operating platform. The laser impulse micro-bulk forming method can be used for realizing the micro-bulk forming of any complex shaped micro-devices, and can be repeatedly impacted and loaded on, and has good repeatability and easy realization of automatic production.

Description

Technical field [0001] The present invention relates to the field of laser micro-processing and micro-volume forming, in particular to a method and device for laser shock micro-volume forming of micro devices, which can accurately replicate the micro features on micro molds to micro workpieces, and is suitable for micro device micro Volume precision forming is especially suitable for micro-volume forming of complex devices that are difficult or impossible to be formed by conventional methods at micro-scale, and is suitable for low-cost mass production of micro devices. Background of the invention [0002] Miniaturization is an important way to obtain a competitive and multi-functional engineering system. With the development of modern science and technology and the increasing demand for micro-parts and micro-devices, miniaturization has become an important direction in the development of contemporary science and technology, with a wide range of miniaturized products It has broad ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/00B23K26/18B23K26/04B23K26/42B23K26/064B23K26/70
Inventor 王匀许桢英戴亚春董培龙朱永书陆广华杨昆蔡兰
Owner JIANGSU UNIV
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