Study on Cutting-off Used Tipped-saw when Sawing Steels

Abstract

This paper deals with the effect of disk material on sawing performance and vibration characteristic when sawing carbon steel S45C. Three kinds of tool steel SK5, SKS5 and NBSP1 are compared. NBSP1 is high silicon content, and is superior on quenching. The tool failure and surface roughness of workpiece are observed at a sawing speed of 130m/min and a feed of 0.07mm/tooth. The chipping resistant of NBSP1 is better than the other tool steels. The sawing performance is influenced by the hardness variation of disk when brazing tip.