تأثير سرعة القطع و معدل التغذية على خشونة السطوح المنتجة بالتفريز المحيطي للفولاذ المتوسط الكاربون ( CK45 )‎

Abstract EN

The aim of this research is to study the effect of five values of rotational speeds of milling cutter (50 ، 170 ، 450 ، 750 ، 1200) r.p.m ، which are a represent the cutting speed in milling operations against five values of feed rates (0.2 ، 0.4 ، 0.6 ، 0.8 ، 1) mm on surface roughness produced by slab – milling of medium carbon steel (CK45).

The surface roughness was computed by experimental tests for (75) samples of milling process .

The experimental results showed that an increasing of cutting speed produces decreasing in roughness level which lead to high quality of surface roughness .

So ، an increasing of feed rate produces decreasing in quality surface roughness .

Also ، it was found that lowest surface roughness produced by slab – milling for medium carbon steel (CK45) is obtained from high cutting speed as well as lower feed rate .