CNC Milling :Precision Milling and Rough Milling
Firstly, the surface finish of CNC milling part is closely associated with milling
precision. If the surface of part is very rough, the dimensional accuracy and shape
and place precision would be low accurate.
Secondly, when the
part is manchined by the CNC machine, the surface of part
is directly touched
by CNC parts. The usage of many parts are focused on the
surface quality ( such
as sliding bearing and the contact
surface of axile).
Thirdly, milling allowance shoule be check out before rough milling.The enough
and reasonable margin should be left for precision milling when rough milling.
The location of right base level should be accurate when
precision.
Finally, the surface quality of CNC milling part will affect the usage of parts.
The defective surface will affect performance of part. For example, a tiny crack
on the surface maybe extend when using and
finnally caused the part breakage.
