Analysis of residual stress in the production of automotive prototype tools by multi-axis technology

Abstract Surface quality influences characteristics such as fatigue strength, wear rate, corrosion resistance, etc. Steel components often have to be machined after heat treatment in order to obtain the correct shape as well as the required surface finish. Hard turning allows manufacturers to simplify their processes and still achieve the desired surface finish quality. There are various parameters such as cutting speed, feed rate, and tool nose radius that are known to have a large impact on surface quality. This article describes, how different cutting parameters affect the machined surface and fatigue life in machining. The goal of this work is analysed residual stress if tools production is replaced by grinding on multi-axis machining.