Wear Mechanisms of Hard-Brittle Material Tools in High-Speed Machining of Powder Metallurgy Material

Zhi Ding; Jiang Han; Hai Dong Yang

doi:10.4028/www.scientific.net/KEM.693.1200

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Wear Mechanisms of Hard-Brittle Material Tools in High-Speed Machining of Powder Metallurgy Material

Abstract:

A series of experiments was conducted in high speed machining of powder metallurgy material with PCBN tools. The main tool wear mechanisms were discussed by observing tool wear morphology utilizing scanning electron microscopy (SEM) and detecting the element distribution of the worn tool surface using energy dispersive spectroscopy (EDS).The experimental results indicate that fragile breakage occurred before it reached its blunt standard in high-speed machining of powder metallurgy material with PCBN tools,and the tools wear mechanisms are synergistic interaction among mechanical wear,binder wear and chemical wear.

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Periodical:

Key Engineering Materials (Volume 693)

Pages:

1200-1206

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.693.1200

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Online since:

May 2016

Authors:

Zhi Ding*, Jiang Han, Hai Dong Yang

Keywords:

High-Speed Machining, PCBN Tool, Powder Metallurgy Material, Wear Mechanism

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