Influence of Flow-Forming Process on Cutting Force Changes in Machining of 99.5% Al Workpiece

Abstract

Machinabilty is a very important feature of materials subjected to machining process and can be analyzed from various aspects. The main question of many machinability studies is, “What are the influencing factors on the machinability?” This work describes experimental investigation on influence of cold flow forming process onto cutting force changes in machining of a 99.5% Al workpiece. the aim of the work is to find if and to what extend the cutting force is changed after plastic deformation in the process of cold flow forming. Full factorial plan has been applied in experimental works on three specimens, one before and two after plastic deformation. Cutting forces were measured by means of a three-component Kistler dynamometer Type 9265B. Regression analysis is performed in Microsoft Excel Data Analysis Package for both specimens. Obtained results have been compared and confirmed the fact that there are significant differences in character of the cutting force changes between undeformed and plastically deformed workpieces.