Determination of stress distribution on the tool rake face using a composite tool

Abstract

A composite tool method for the determination of the stress distribution on the tool rake face is proposed. This technique overcomes some of the inherent problems associated with the split tool method. It is found that the stress distributions advocated by Zorev need to be re-examined. In some cases the normal stress may not be exponential but shows a flattened zone along the curve. Also, the frictional stress does not remain constant all the way to the tool edge but rises in its proximity. Experimental verification confirmed that the chip-tool contact and sticking lengths can be deduced from the frictional stress results. © 1994.