Aِ studing the effect of chemical composition of workpiece on built up edge formation and surface roughness

الملخص EN

the phenomena built-up edge was the unwanted rough edge on cutting tool that is created by workpiece material welding onto the tool during cutting , occurs at the chip / tool interface when multiple materials are machined at low cutting speeds.

under high compressive stresses, this study involve relation between the chemical composition of workpiece and the built-up edge (B.

U.

E) formation which is generated on cutting tool during machining at dfferent types of low carbon steel using turning machine, experments prove that increasing percentage of carbon on workpiece causes reduction in weight of cutting tool from (14.532g to 13.823g ) at cutting speed 40 m / min and 0.10 % and 014 % carbon also to 12.672g at 0.20 % carbon because built–up edge was disappear and surface roughness was improving from the value ( 5.43μm ) at 0.10 % carbon and to ( 3.362 μm) at 0.14 % carbon and to (3.543μm) at 0.20 % carbon.