Influence of Heat Treatment and Cutting Parameters on Chip Formation and Cutting Forces

摘要

The high speed cutting process leads to reduced cutting forces and a transition in chip formation from continuous to segmented chips. Different precipitation states of AlZnMgCu 1.5 and different heat treatment states of 40 CrMnMo 7 were machined. It was found that heat treatment is the key to achieve defined chip formation and technology parameters have only secondary influence. By using defined heat treatment AlZnMgCu 1.5 continuous and segmented chips can be obtained up to cutting speed of 8000 m/min. Force measurement enables fundamental investigations on the influence of chip formation on cutting forces. This paper presents the influence of heat treatment, technology parameters, such as cutting speed and depth of cut, on the chip segmentation and cutting forces.