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我厂推广组在苏联专家冈卡洛夫同志的指导和具体帮助下,改进了一种高速综合车刀。这种车刀的形状如图1,在刀杆头部的两侧上各焊一个硬质合金刀头(加工钢料用 T_(30)K_4,加工铸铁用 BK_3)。这种车刀有如下的特点:1)这种车刀实际上是一种多刃车刀;在加工时可以不必转动刀架,也就是不需换刀,就可以加工外圆、内孔、端面、倒稜及割槽等。所以一把高速综合车刀可以代替三、四把普通车刀,不但节省刀杆材料,还可减少辅助时间。2)使用硬质合金 T_(30)K_4 和 BK_3,切削速度比用 T_(15)K_6和 BK_8高1～2倍
I plant promotion group in the Soviet Union Gangkarov comrades guidance and specific help to improve a high-speed integrated turning tool. The shape of this turning tool is shown in Fig. 1, a carbide tip (T_ (30) K_4 for machining steel, BK_3 for machining cast iron) is welded on both sides of the head of the tool. This type of lathe has the following features: 1) This type of turning tool is actually a multi-turning lathe; it is unnecessary to rotate the turret when machining, that is, it is possible to machine the outer circle, Face, chamfering and cutting slot and so on. Therefore, a high-speed integrated turning tool can replace three or four ordinary turning tools, which not only save the tool material, but also reduce the auxiliary time. 2) The use of cemented carbide T_ (30) K_4 and BK_3, the cutting speed than with T_ (15) K_6 and BK_8 high 1 to 2 times