Laser quenching process for reducing width of laser quenching lap joint soft belt
A technology of laser quenching and soft belt, which is applied in the field of laser heat treatment, can solve the problems of uneven quenching hardening layer, etc., and achieve the effect of increasing the depth of quenching layer, increasing the entrance light spot, and shortening the collimation length
Pending Publication Date: 2021-09-07
DANYANG HONGTU LASER TECH
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Abstract
The invention relates to a laser quenching process for reducing the width of a laser quenching lap joint soft belt. The incident light spot can be effectively increased by shortening the collimation length, the heating time of a light spot region can be effectively increased within the same time by increasing the area of an integral mirror, and the heating time of a light spot in a heating region can be effectively prolonged by reducing the moving speed, the heating depth is enhanced, the depth of a quenching layer is effectively improved, light spot energy is made to deviate towards the lap joint overlapping end by adjusting the emitting direction of a laser beam, energy concentration at the right end can be effectively achieved, and virtual spots are reduced. Through adjustment of technological parameters, the width of the tempered soft belt of the obtained laser quenching hardened layer can be reduced to 0.2-0.3 mm from 0.5-1.0 mm in the original technology, the hardness of the soft belt is not obviously reduced, and the ideal effect is achieved.
Technology Topic
Lap jointLaser beams +4
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PUM
Property | Measurement | Unit |
Hardness | >= 600.0 |
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