Effect of workpiece sulphur content on the degradation of a PCBN tool material

J. Angseryd; E. Olsson; H. O. Andrén

doi:10.1016/j.ijrmhm.2011.04.016

Effect of workpiece sulphur content on the degradation of a PCBN tool material

J. Angseryd
, E. Olsson
, H. O. Andrén

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Tool degradation may be significantly different depending on small variations in chemical compositions of the workpiece material. The present study is an in-depth microstructure investigation of worn low content polycrystalline cubic boron nitride tool materials after dry hard turning of steels with low and high sulphur contents. The results illustrate the important role of sulphur content on the degradation of the crater zone. Sulphides tend to adhere on the wear surface and form layers that protect the tool from workpiece ingress. In the absence of sulphides in the workpiece material, no protective layer can form and iron compounds make their way into the tool microstructure already at lower cutting speeds (150 m/min) and preferably attack cBN grains compared to Ti(C,N) grains.

Original language	English
Pages (from-to)	674-680
Number of pages	7
Journal	International Journal of Refractory Metals and Hard Materials
Volume	29
Issue number	6
DOIs	https://doi.org/10.1016/j.ijrmhm.2011.04.016
State	Published - Nov 2011
Externally published	Yes

Funding

The authors would like to thank Ulf Oscarsson and Jorge Canales for performing the turning tests. This work was carried out with the financial support by Sandvik Tooling and the Swedish Research Council. Financial support for expensive equipment, e.g. the Titan TEM, from the Knut and Alice Wallenberg Foundation, the Swedish Research Council (VR) and Chalmers University is also gratefully acknowledged.

Keywords

Hard turning
MnS
PCBN
Sulphide
Wear

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10.1016/j.ijrmhm.2011.04.016

Cite this

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title = "Effect of workpiece sulphur content on the degradation of a PCBN tool material",

abstract = "Tool degradation may be significantly different depending on small variations in chemical compositions of the workpiece material. The present study is an in-depth microstructure investigation of worn low content polycrystalline cubic boron nitride tool materials after dry hard turning of steels with low and high sulphur contents. The results illustrate the important role of sulphur content on the degradation of the crater zone. Sulphides tend to adhere on the wear surface and form layers that protect the tool from workpiece ingress. In the absence of sulphides in the workpiece material, no protective layer can form and iron compounds make their way into the tool microstructure already at lower cutting speeds (150 m/min) and preferably attack cBN grains compared to Ti(C,N) grains.",

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AU - Angseryd, J.

AU - Olsson, E.

AU - Andrén, H. O.

PY - 2011/11

Y1 - 2011/11

N2 - Tool degradation may be significantly different depending on small variations in chemical compositions of the workpiece material. The present study is an in-depth microstructure investigation of worn low content polycrystalline cubic boron nitride tool materials after dry hard turning of steels with low and high sulphur contents. The results illustrate the important role of sulphur content on the degradation of the crater zone. Sulphides tend to adhere on the wear surface and form layers that protect the tool from workpiece ingress. In the absence of sulphides in the workpiece material, no protective layer can form and iron compounds make their way into the tool microstructure already at lower cutting speeds (150 m/min) and preferably attack cBN grains compared to Ti(C,N) grains.

AB - Tool degradation may be significantly different depending on small variations in chemical compositions of the workpiece material. The present study is an in-depth microstructure investigation of worn low content polycrystalline cubic boron nitride tool materials after dry hard turning of steels with low and high sulphur contents. The results illustrate the important role of sulphur content on the degradation of the crater zone. Sulphides tend to adhere on the wear surface and form layers that protect the tool from workpiece ingress. In the absence of sulphides in the workpiece material, no protective layer can form and iron compounds make their way into the tool microstructure already at lower cutting speeds (150 m/min) and preferably attack cBN grains compared to Ti(C,N) grains.

KW - Hard turning

KW - MnS

KW - PCBN

KW - Sulphide

KW - Wear

UR - https://www.scopus.com/pages/publications/80051472064

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DO - 10.1016/j.ijrmhm.2011.04.016

M3 - Article

AN - SCOPUS:80051472064

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VL - 29

SP - 674

EP - 680

JO - International Journal of Refractory Metals and Hard Materials

JF - International Journal of Refractory Metals and Hard Materials

IS - 6

ER -

Effect of workpiece sulphur content on the degradation of a PCBN tool material

Abstract

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Keywords

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