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激光束加工为强化高速钢刀具的先进方法之一。通过激光束对刀具切削刃的局部瞬时扫描,可以得到较普通热处理的显微硬度(800～900公斤力/毫米~2)高200～400公斤力/毫米~2的强化层。为了拟订平面拉刀的激光强化规范,采用了《KbaHT—16》激光装置和用手旋转微动螺钉使拉刀在光束作用区移动的辅助机构。用此装置强化拉刀的初步试验表明,拉刀的耐用度可提高0.4～0.6倍。为了实现拉刀强化过程的机械化和自动化以及提高其生产效率,建立了以6P13φ3型数控立铣床和《KbaHT—16》激光装置为基础的配套机组。光学量子发生器4装在专用托架3上,托架则紧固在机床主轴的凸缘上。主轴藉助卡
Laser beam machining is one of the advanced methods for strengthening high speed steel tools. Through the local instantaneous scanning of the cutting edge by the laser beam, a strengthening layer with 200 ~ 400 kgf / mm ~ 2 higher than the average heat treatment microhardness (800 ~ 900 kgf / mm ~ 2) can be obtained. In order to develop a laser broadening specification for a flat broach, a “KbaHT-16” laser device and a hand-operated micromotor screw were used to assist the broach in moving the beam. Preliminary tests using this device to strengthen the broach show that the broach durability can be increased 0.4 to 0.6 times. In order to realize the mechanization and automation of the broach strengthening process and to improve its production efficiency, an auxiliary unit based on a 6P13φ3 CNC milling machine and a “KbaHT-16” laser device was established. The optical quantum generator 4 is mounted on a special bracket 3 which is fastened to the flange of the machine spindle. Spindle with the card