在机械加工中,经常采用的高速钢刀具大都是用整体式高速钢的,这种情况无论就发挥材料的潜力或是经济性方面,都是不够合理的。目前,已见不少工厂采用高速钢刀片钎焊在炭钢刀体上,这样就好得多了。但是,刀片仍需要用整块的高速钢锻造和铣削加工,仍不够经济。我们采用废高速钢钻头、丝锥等作为焊条,以氧-乙炔还原焰(碳化焰)堆焊高速钢刀 In machining, often used high-speed steel cutting tools are mostly used in high-speed steel, this case will not play the potential of the material or economic aspects, are not reasonable enough. At present, many factories have seen the use of high-speed steel blade brazing carbon steel body, so much better. However, the blades still need to be forged and milled using a single piece of HSS, which is still not economical enough. We use waste high-speed steel drill bits, taps and other electrodes as oxygen-acetylene reduction flame (carbide flame) surfacing high-speed steel knife