SYMPOSIA PAPER Published: 01 April 2012
STP153220120022

Evaluation of Cutting Edges Made of Nanocrystalline Cemented Carbides Sintered by the Pulse Plasma Method

Source

In our investigations, nanocrystalline WC-5 wt % Co was consolidated by the pulse plasma sintering method at various temperatures between 1320 and 1560 K under a pressure of 60 MPa for 300 s. The cemented carbides sintered at 1520 K have a relative density of 100 %, hardness of 2100 HV30, and tungsten carbides (WC) crystallite size of about 150–300 nm. An increase of the sintering temperature to 1560 K results in the increase of the WC crystallite size to about 300–500 nm and the hardness being decreased to 1980 HV30. The tool life of the cutting edges made of nanocrystalline cemented carbides sintered by the pulse plasma method is increased about two times in comparison with cutting edges made of standard and fine-grained cemented carbides during the turning of EN1.45.40 (1H18N9T) austenitic steel.

Author Information

Kupczyk, Maciej, Jan
Institute of Mechanical Technology, Poznan Univ. of Technology, Poznan, PL
Michalski, Andrzej
Warsaw Univ. of Technology, Warsaw, PL
Siwak, Piotr
Institute of Mechanical Technology, Poznan Univ. of Technology, Poznan, PL
Rosinski, Marcin
Warsaw Univ. of Technology, Warsaw, PL
Price: $25.00
Contact Sales
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Developed by Committee: D02
Pages: 313–326
DOI: 10.1520/STP153220120022
ISBN-EB: 978-0-8031-9417-5
ISBN-13: 978-0-8031-7518-1