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Small scale testing of PCD and WC-Co tooling in rock cutting using longitudinal turning

Johansson, Daniel LU ; Hrechuk, Andrew LU ; Bushlya, Volodymyr LU ; Mårtensson, Malin ; Can, Antionette and Ståhl, Jan Eric LU (2019) In Wear 426-427(Part B). p.1515-1522
Abstract

Rock cutting and crushing stands for a considerable part of the world use of Cemented Carbide (CC). CC is preferred due to its hardness while maintaining high fracture toughness. However, new cutting tool materials are developed allowing increased efficiency whilst minimizing the use of critical raw material such as tungsten and cobalt. One material showing promising capabilities is Polycrystalline Diamond (PCD). Field testing of new wear resistant tool materials are known to be notoriously difficult due to issues controlling the test environment. To further support the development of new and more wear resistant tool materials there is a need for an improved methodology of laboratory testing of rock cutting. In this work a test rig was... (More)

Rock cutting and crushing stands for a considerable part of the world use of Cemented Carbide (CC). CC is preferred due to its hardness while maintaining high fracture toughness. However, new cutting tool materials are developed allowing increased efficiency whilst minimizing the use of critical raw material such as tungsten and cobalt. One material showing promising capabilities is Polycrystalline Diamond (PCD). Field testing of new wear resistant tool materials are known to be notoriously difficult due to issues controlling the test environment. To further support the development of new and more wear resistant tool materials there is a need for an improved methodology of laboratory testing of rock cutting. In this work a test rig was developed and testing methodology was validated, when using cutting tool inserts with standard shapes, such as round double sided general purpose insert RNGN and dome shaped buttons while machining and crushing bars of red granite by longitudinal turning using a standard lathe. Optical microscopy, 3D data of Volume Difference Measurements and SEM were used for analyzing tool wear. Different grades of CC showed similar wear mechanisms irrespectively of tool geometry. The PCD grade did not show similar wear mechanisms, but did outperform CC grade in regard to wear resistance.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
PCD, Red granite, Rock cutting, WC-Co
in
Wear
volume
426-427
issue
Part B
pages
8 pages
publisher
Elsevier
external identifiers
  • scopus:85057609580
ISSN
0043-1648
DOI
10.1016/j.wear.2018.11.036
language
English
LU publication?
yes
id
18fd26fc-0ffb-40b9-ba29-a7797cd60d66
date added to LUP
2018-12-21 11:56:55
date last changed
2019-11-25 09:26:19
@article{18fd26fc-0ffb-40b9-ba29-a7797cd60d66,
  abstract     = {<p>Rock cutting and crushing stands for a considerable part of the world use of Cemented Carbide (CC). CC is preferred due to its hardness while maintaining high fracture toughness. However, new cutting tool materials are developed allowing increased efficiency whilst minimizing the use of critical raw material such as tungsten and cobalt. One material showing promising capabilities is Polycrystalline Diamond (PCD). Field testing of new wear resistant tool materials are known to be notoriously difficult due to issues controlling the test environment. To further support the development of new and more wear resistant tool materials there is a need for an improved methodology of laboratory testing of rock cutting. In this work a test rig was developed and testing methodology was validated, when using cutting tool inserts with standard shapes, such as round double sided general purpose insert RNGN and dome shaped buttons while machining and crushing bars of red granite by longitudinal turning using a standard lathe. Optical microscopy, 3D data of Volume Difference Measurements and SEM were used for analyzing tool wear. Different grades of CC showed similar wear mechanisms irrespectively of tool geometry. The PCD grade did not show similar wear mechanisms, but did outperform CC grade in regard to wear resistance.</p>},
  author       = {Johansson, Daniel and Hrechuk, Andrew and Bushlya, Volodymyr and Mårtensson, Malin and Can, Antionette and Ståhl, Jan Eric},
  issn         = {0043-1648},
  language     = {eng},
  number       = {Part B},
  pages        = {1515--1522},
  publisher    = {Elsevier},
  series       = {Wear},
  title        = {Small scale testing of PCD and WC-Co tooling in rock cutting using longitudinal turning},
  url          = {http://dx.doi.org/10.1016/j.wear.2018.11.036},
  doi          = {10.1016/j.wear.2018.11.036},
  volume       = {426-427},
  year         = {2019},
}