The Influence of Coatings on the Machining Process of high-alloyed Stainless Steels
Biermann, D.1, a; Weinert, K.1, b; Felderhoff, F.1, c; Heilmann, M.1, d
- 1)
- Institut für Spanende Fertigung, Universität Dortmund, Baroper Str. 301, 44227 Dortmund
a) biermann@isf.de; b) weinert@isf.de; c) felderhoff@isf.de; d) heilmann@isf.de
Kurzfassung
High-alloyed stainless steels are gaining more technological and economical importance because of their convenient usage properties. The significance of these materials is primarily based on their high chemical resistance as well as high strength and durability. In conjunction with the growing popularity of this material group, machining of stainless steels is becoming more important. The favourable usage properties of these materials are unfortunately conflicted with manufacturing problems. Due to the low heat conductivity, the high specific heat capacity and the high tendency to work hardening high tribological loads on the tool and work piece interface are present. For the reduction of the tool wear resulting from these appearing loads, coatings in conjunction with adapted cutting materials are becoming more important. Adapted to the machining task, coatings which vary with respect to the method of deposition, the assembly and the configuration were used for machining stainless steel. This paper presents results from investigations which analyse the influence of varying coatings on tool wear in machining high-alloyed stainless steels. Coatings deposited by CVD and PVD and with monolayer, multilayer and nano-designed structures were applied. For this purpose a cylindrical turning process, a drilling process with indexable inserts and a single lip deep hole drilling process were investigated.
Schlüsselwörter
Coatings, Stainless Steels, Machining, Tool Wear
Veröffentlichung
In: Proceedings of the 6th International Conference THE Coatings 2007, 25.10.-26.10. 2007, Bach, Fr.-W.; Bouzakis K.-D.; Denkena, B.; Geiger, M. (Hrsg.), ISBN 978-3-939026-64-8, S. 97-106