Rough machining of part contour

In addition to the complex shape programming of mold parts, during rough machining, it is necessary to make full use of the performance of the NC machine tool to ensure that the rough machining of parts is within the controllable range of the machine tool, use the maximum cutting capacity and the fastest feeding speed as much as possible, and pay attention to the reserved internal chamfer size to ensure that the distance between tool withdrawal and tool change is scientifically and reasonably controlled during the machining process. While ensuring the quality and rationality of rough machining, To maximize the working efficiency of rough machining, generally speaking, the allowance for turning rough machining should be 1.3 mm, the allowance for milling rough machining should be 1.0mm, and the allowance for grinding rough machining should be 0.3mm.

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