镶片三面刃铣刀磨损后就不能用了吗?我们采用下面的方法,使废刀片复活,并且经济效果还是很好的。将刀片从刀体中一个一个地卸下来,然后用电焊法把它焊接在刀杆上(见图)。可根据需要把它刃磨成內、外螺纹刀、切槽刀、內孔镗刀等。由于冷焊,使刀片不退火,使用起来硬度保持不变。一般硬度较高的零件(HR 34～39)车螺纹时,都 Can not use the veneered three-sided cutter worn? We use the following method to revive the scrap, and the economic effect is still very good. The blades are removed from the body one by one and then welded to the arbor by electric welding (see picture). It can be sharpened into internal and external thread knives, grooving knives, bore boring knives and so on according to the need. Due to cold welding, the blade is not annealed, the hardness remains unchanged. General high hardness parts (HR 34 ~ 39) when the thread, all