Influence of Chip Curl on Tool-Chip Contact Length in High Speed Machining

Abstract

The tool-chip contact length, as an important parameter controlling the geometry of tool crater wear and understanding chip formation mechanism, is widely investigated in machining. The aim of this paper is to study the influence of chip curl on tool-chip contact length by means of experimental observations with high cutting speed. The relationship between tool-chip contact length, chip radius of curvature and uncut chip thickness was investigated. Experimental results show the effect of increasing spiral chip radius on tool-chip contact length with low uncut chip thickness in high speed machining.

Influence of Non-metallic Inclusions in 316L Stainless Steels on Machining Using Different Cutting Speeds

“…[19][20][21] On the other hand, the tool-chip contact length could affect and be related to several essential factors in the cutting process (such as the tool life, chip form, tool temperature, cutting forces, tool stability, surface finish, and energy consumption). Previous work has shown a clear proportional relationship between the contact length and the chip compression ratio, 20) the radius of chip curvature, 22) and tool wear. 23) Thus, investigations of the tool-chip contact length will give quite much information about the effect of NMIs on the machining performance.…”