Modern Machining Processes for the Manufacturing of Screw Machine Components

Zabel, A.1, a

Institut für Spanende Fertigung, Technische Universität Dortmund, Baroper Str. 303, 44227 Dortmund



This contribution covers different modern machining processes, namely milling, turning and grinding/polishing, which can be applied to the manufacturing of screw machine components. The first process discussed is simulation based five-axis milling for the generation and structuring of complex free-formed surfaces. Here it is shown that nearly arbitrary geometries can be milled and that specific structures can be added to the surfaces in order to fulfill functional purposes as well. Then some new developments with respect to the cutting of difficult to machine workpiece materials, such as special steel alloys and functionally graded materials, are presented. Here the question of machinability and process efficiency arises as these materials are well-suited for application in screw machines. The last part deals with free-form grinding processes and their application to coated and uncoated surfaces. In addition, final polishing processes carried out by flexible grinding wheels in order to achieve very high surface qualities are addressed.


In: International Conference on Screw Machines, 2014, ISBN 978-3-18-092228-7, S. 267-278