The relation of surface roughness of radius of point of a knife and feed, surface
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When turning, the theoretical value existence of surface roughness of radius of point of a knife and feed, surface concerns certainly, this value should not exceed commonly when we choose feed. H=re-(re²-(0.
5 × F)²)0.
5h is rudimental height, and: Ra=(0.
25~0.
33)h because this: FMmRa/Rz µm0 of round razor blade of Mm of round horn of point of a knife of Max=(Ra × Re/50)½ .
4/1.
61.
6/6.
33.
2/12.
56.
3/258/3232/100 feed Mm0.
20.
050.
080.
130.
40.
070.
110.
170.
220.
80.
100.
150.
240.
300.
381.
20.
190.
290.
370.
471.
60.
340.
430.
541.
082.
40.
420.
530.
661.
3260.
200.
310.
490.
6280.
300.
360.
560.
72100.
250.
400.
630.
801.
00120.
440.
690.
881.
10160.
510.
801.
011.
262.
54200.
891.
131.
422.
94251.
261.
583.
33 CNC Milling