在切削加工中,除了需要工具以外,还必须要有一定的力。没有力的作用,根本无法进行切削。譬如我们用锉刀锉修工件时,必须用劲,才能把工件锉去一层。用机床切削工件也是这样,这个“劲”就是切削力。大小机床相比,大机床干大活,吃刀量、走刀量较大,用的切削力也大。小机床干小活,吃刀量、走刀量也小,用的切削力也小。也可以说,要想切掉一层金属或其它非金属,必须要用一定的切削力。假若这个力超过所需要 In cutting, in addition to the need for tools, but also must have some force. No force, simply can not be cut. For example, when we use a filing file to repair a work piece, we must work hard to put the work piece to a layer. The same is true for cutting workpieces with a machine tool. This “force” is the cutting force. Compared to the size of the machine, the big machine dry big job, eat the knife, take a larger amount of cutting force is also large. Small machine dry small living, eat knife, take a small amount of knife, cutting force is also small. It can also be said that in order to cut off a layer of metal or other non-metallic, you must use a certain cutting force. If this force exceeds the required