Modern Machining Processes for the Manufacturing of Screw Machine Components

摘要

This contribution covers different modern machining processes, namely milling and grinding/polishing, which can be applied to the manufacturing of screw machine components in order to achieve high quality parts in an efficient manner. The first process discussed is simulation based five-axis milling for the generation of complex free-formed surfaces. Here it is shown that nearly arbitrary geometries can be milled. The second part deals with NC-based free-form grinding processes and their application to coated and uncoated surfaces. Then some new developments with respect to the cutting of difficult to machine workpiece materials, such as special steel alloys are presented. Here the question of machinability and process efficiency arises as these materials are well-suited for application in screw machines. At the end of the paper, micromilling processes that add specific structures to work-piece surfaces in order to fulfil functional purposes are proposed and finally polishing steps, carried out by flexible grinding wheels in order to achieve very high surface qualities are addressed.