Machinability of Stellite 6 hardfacing
Mechanical laboratory of Materials and Plant Maintenance
(LR3MI), Mechanical Department of Engineering, University Badji
E – mail: firstname.lastname@example.org
2 Laboratoire de Physique et Mécanique des Matériaux UMR CNRS 7554 ISCMP – Bâtiment C Ile du Saulcy57045 METZ Cedex 01 France
This paper reports some experimental findings concerning the machinability at high cutting speed of nickel-base weld-deposited hardfacings for the manufacture of hot tooling. The forging work involves extreme impacts, forces, stresses and temperatures. Thus, mould dies must be extremely resistant. The aim of the project is to create a rapid prototyping process answering to forging conditions integrating a Stellite 6 hardfacing deposed PTA process. This study talks about the dry machining of the hardfacing, using a two tips machining tool and a high speed milling machine equipped by a power consumption recorder Wattpilote. The aim is to show the machinability of the hardfacing, measuring the power and the tip wear by optical microscope and white light interferometer, using different strategies and cutting conditions.
Key words: Weld hardfacing / base-cobalt / Machinability / High speed milling / Wattpilote
© Owned by the authors, published by EDP Sciences, 2010