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Titolo:
Machining of martensitic stainless steel (JETHETE) with coated carbides
Autore:
Jawaid, A; Olajire, KA; Ezugwu, EO;
Indirizzi:
S Bank Univ, Sch Engn Syst & Design, Machining Res Ctr, London SE1 0AA, England S Bank Univ London England SE1 0AA ning Res Ctr, London SE1 0AA, England Coventry Univ, Sch Engn, Coventry, W Midlands, England Coventry Univ Coventry W Midlands England Coventry, W Midlands, England
Titolo Testata:
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE
fascicolo: 6, volume: 215, anno: 2001,
pagine: 769 - 779
SICI:
0954-4054(2001)215:6<769:MOMSS(>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
WEAR MECHANISMS; TOOLS;
Keywords:
wear model; tool life model; martensitic stainless steel; coated carbides;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Olajire, KA S Bank Univ, Sch Engn Syst & Design, Machining Res Ctr, 103 Borough Rd, London SE1 0AA, England S Bank Univ 103 Borough Rd London England SE1 0AA AA, England
Citazione:
A. Jawaid et al., "Machining of martensitic stainless steel (JETHETE) with coated carbides", P I MEC E B, 215(6), 2001, pp. 769-779

Abstract

Tool life and wear models were fitted for machining a martensitic stainless steel (JETHETE) with three ceramic-coated carbides [CVD-Ti(C,N)/Al2O3 (T1), CVD-Ti(C,N)/TiC/Al2O3 (T2) and PVD-TiN (T3)] using statistical regression analysis. The statistical analysis revealed the contribution of the cutting speed and feed rate to tool performance to be in excess of 80 per cent, with the cutting speed showing the greater degree of influence. Significantnose wear was the common failure mode observed at higher speed conditions. Plastic deformation and chipping/fracture at the cutting edge were additional failure modes observed when machining with the T2 and T3 tool grades respectively. The coarse grain size and high cobalt content contributed to the very poor performance of the multicoated T2 grade insert, while the improved microhardness of the PVD-TiN coating gave the single layer coated T3 grade a comparable performance with the multicoated T1 grade. Attrition wear was the principal wear mechanism at lower speed conditions. while dissolution/diffusion and abrasion were additional wear mechanisms when machining athigher speed conditions. A higher degree of diffusion wear occurred on theT3 grade insert owing to the relatively lower level of cubic carbides in the tool composition.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/05/20 alle ore 13:32:30