Cutting data influence on cutting forces and surface finish during sintered carbide turning / Wojciech Zębala, Robert Kowalczyk // W: Precision Machining VII : selected, peer reviewed papers from the ... więcej

Cutting data influence on cutting forces and surface finish during sintered carbide turning / Wojciech Zębala, Robert Kowalczyk // W: Precision Machining VII : selected, peer reviewed papers from the 7th International Congress of Precision Machining (ICPM 2013), October 3-5, 2013, Miskolc, Hungary / ed. by János Kundrák, Zsolt Maros. – Dürnten-Zurich : Trans Tech Publications Ltd, 2013. – (Key Engineering Materials, ISSN 1013-9826 ; Vol. 581). – S. 148-153. – Bibliogr. 21 poz., Abstr. – doi: 10.4028/www.scientific.net/KEM.581.182. – ISBN 978-3-03785-840-0

The paper presents research of turning of super hard materials, like sintered carbides, with PCD (polycrystalline diamond) tools. Sintered carbides with cobalt, as metal binder, with good properties of ... więcej

The paper presents research of turning of super hard materials, like sintered carbides, with PCD (polycrystalline diamond) tools. Sintered carbides with cobalt, as metal binder, with good properties of abrasion resistant in high temperature environment are used as construction material. These materials, produced by a powder metallurgy process, are difficult-to-machine because of their high hardness and brittleness. In the work, a special attention was paid on the cutting force component Fc and surface finish, in the form of roughness parameter Ra, at variable cutting data (cutting speed vc, feed f and depth of cut ap). The test stand for research was consisted of the precise lathe, work piece (a tungsten carbides rod with 25% Co content), tool holder of DTGNR 2020K16 type, insert of TNGA type with PCD edges, Kistler force dynamometer and Taylor Hobson profilometer. Taguchi design and ANOVA analysis were applied.