Regular lubrication and maintenance of bearings in operation
Regular lubrication and maintenance of bearings in operation
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The influence of workpiece surface conditions on the polishing process
by：Waxing
2020-10-02
Steel in the process of the broken of cutting machining, the surface will be damaged by heat, internal stress, or other factors, improper cutting parameters affect the polishing effect.
After the edm surface is much more difficult than ordinary mechanical processing or the surface of the heat treatment after grinding, so fine gauge should be used before the end of edm edm dressing, otherwise will form the surface hardening thin layer.
If improper selection edm refinement gauge the depth of the heat affected layers up to 0.
4mm。
Hardening of the thin layer of hardness is higher than matrix hardness, must be removed.
So it's best to increase a coarse grinding, thoroughly remove damaged surface layer, average constitute a rough metal surface, polishing processing to provide a good foundation.
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