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机械加工工人,在金属切削时,时时刻刻要和吃刀深度t,走刀量S和切削速度V打交道。对于选定的t和S,由摇动手把和扳动手柄就能获得。而对于选定的切削速度V,必须根据工件的被切削直径或者旋转刀具的直径,转换为每分钟的转数n,再扳动手柄才能获得。其相互关系按下式可求得:式中:n──工件或者旋转刀具的转速(转/分)V──切削速度(米/分)D──工件或者旋转刀具的直径(毫米)由上式看出,若在生产操作中,选定一个V,再换算一个n,很不方便。
Machining workers, in metal cutting, always and eat knife depth t, cutting speed S and cutting speed V deal. For the selected t and S, it is obtained by shaking the handle and pulling the handle. For the selected cutting speed V, the workpiece must be cut diameter or diameter of the rotary tool, converted to the number of revolutions per minute n, and then move the handle can be obtained. The relationship can be obtained by the following formula: where: n - the rotation speed of the workpiece or rotary tool (rpm) V - cutting speed (m / min) D - the diameter of the workpiece or rotary tool (mm) The above formula shows that, if the production operation, select a V, and then convert a n, very inconvenient.