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Question:

High speed steel milling cutter can reach the surface roughness of carbon steel parts

High speed steel milling cutter can reach the surface roughness of carbon steel parts

Answer:

In theory, the surface roughness of the cutting parts is related to the tool speed and the cutterThe faster the speed is, the lower the surface roughness is, and the slower the tool is, the lower the surface roughness is,But because of the speed limit, the high speed steel cutter will burn the tool when the speed is very highI take 20MM high-speed steel cutter as an example:Its speed should be controlled at about 1000 rpmTherefore, you can only take a little effort from the amount of the knifeUnder normal circumstances can reach about 1.6Of course, if you add cutting fluid in the process, the effect will be better.
This depends on the spindle speed of the machine tool with the maximum feed, the tool is only one aspect.
The roughness is controlled by the feed allowance of each tooth and the finishing allowance. The high speed steel processing carbon steel can be divided into 200-300 parts. HB can be used in HB<200, and high speed steel or low linear speed cutting is not recommended. HB between 300-380, it is recommended to use PM high-speed steel, for the processing of low carbon steel, in the case of stable cutting, finishing 0.2mm, 20mm milling cutter, speed 400-450, feed 0.06-0.1mm, can reach Ra1.6.

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