RT Journal Article
SR Electronic
A1 Kundrák, János
A1 Gyáni, Károly
A1 Felhő, Csaba
A1 Deszpoth, István
T1 The Effect of the Shape of Chip Cross Section on Cutting Force and Roughness when Increasing Feed in Face Milling
JF Manufacturing Technology Journal
YR 2017
VO 17
IS 3
SP 335
OP 342
DO 10.21062/ujep/x.2017/a/1213-2489/MT/17/3/335
UL https://journalmt.com/artkey/mft-201703-0011.php
AB In this paper, the results of an investigation done with face milling are presented. The changes in cutting force and surface roughness were studied through changing the values of depth of cut and the feed per tooth. Meanwhile the permanent value of the undeformed chip cross section, which was determined (fz and ap), remained permanent. Increasing fz and keeping the same value of Ac chip cross section, the ratio ap/fz changed in five grades from 0.5 to 8. It is shown, that if the feed is increased in the examined range so that the chip cross section is constant, then the value of the cutting force decreases, which decrease can be observed in all three force components. Accordingly, the mechanical power required for cutting is reduced. The results of the surface roughness investigations showed that initially a significant increase can be observed in the roughness with the gradual increase of the feed (up to ap/fz = 2.5), followed by a moderate increase afterwards.