Workpiece inner wall surface continuous lap-joint-free laser quenching device and quenching method thereof

A laser quenching and non-overlapping technology, which is applied in the field of laser quenching, can solve the problems of affecting the surface treatment effect and reducing the service life of parts, achieving the effect of broad market and application prospects, improving efficiency and simple movement mode

Pending Publication Date: 2019-08-16
沈阳中科煜宸科技有限公司
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Problems solved by technology

This will seriously affect the effect of surface treatment and reduce the service life of parts

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  • Workpiece inner wall surface continuous lap-joint-free laser quenching device and quenching method thereof

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[0018] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0019] see figure 1 As shown, the present invention provides a continuous non-overlapping laser quenching device for the inner wall surface of a workpiece, comprising a laser generator 1, a collimating mirror 2 and a conical reflector 3, and the collimating mirror 2 adopts a transmissive collimating mirror; the conical The reflector 3 extends into the inner cavity of the workpiece 4; the laser generator 1 emits a laser beam through the collimating mirror 2 and ...

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Abstract

The invention discloses a workpiece inner wall surface continuous lap-joint-free laser quenching device and a quenching method thereof. The workpiece inner wall surface continuous lap-joint-free laserquenching device comprises a laser generator, a collimating mirror and a conical reflector, and the conical reflector extends into an inner cavity of a workpiece; the laser generator emits a laser beam which passes through the collimating mirror to emit into the inner cavity of the workpiece and on a cone surface of the conical reflector, and therefore the laser beam becomes an annular laser beamto be focused on the surface of the inner wall of the workpiece to be processed. The workpiece inner wall surface continuous lap-joint-free laser quenching device and the quenching method have the beneficial effects that the device and method for quenching and strengthening the inner wall of the workpiece by means of annular laser in a linear feeding manner are provided, in the process that the method is used for processing the inner wall of the workpiece, the laser beam is subjected to continuous linear feeding, the condition that heat influence zones are in lap joint is avoided, and the strengthening depth and effect are better and even. In addition, by using the method, the laser beam energy can be more stable, spiral feeding is not needed, and the quenching strengthening efficiency isobviously improved. The device is low in cost, simple in movement mode and has broad market and application prospects.

Description

technical field [0001] The invention relates to the field of laser quenching, in particular to a continuous non-overlapping laser quenching device and a quenching method for the inner wall surface of a workpiece. Background technique [0002] Research at home and abroad shows that laser surface hardening can significantly improve the strength and fatigue life of the workpiece surface, and improve the performance of the workpiece. However, in the process of continuous quenching of the inner wall of the workpiece by the laser, in order to achieve the effect of full surface hardening, there are overlapped areas in the heat-affected zone of the workpiece surface during the spiral feeding process of the laser beam. This will seriously affect the effect of surface treatment and reduce the service life of parts. Contents of the invention [0003] The purpose of the present invention is to provide a continuous non-overlapping laser quenching device and quenching method for the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/09C21D1/62
CPCC21D1/09C21D1/62
Inventor 刘祥宇楚文龙姚和川杨九霞
Owner 沈阳中科煜宸科技有限公司
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