Roughness of body parts surfaces, machined by endmills
The article examines the problems of calculation the microroughness level of body parts surfaces, machined by endmills. There are results of surfaces roughness research. Roughness dependence Ra on machined and materials mode development parameters is achieved. The recommendations for the but-ends turning with a lathe are also given. We received the calculated microroughness level which was measured after have been machined by the endmill. It afforded to assign the turning geometry of the butt-end working part and the milling process parameters according to the given in the body part working draught the parameter of the surface roughness.