<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Investigations of the surface layer characteristics of selected kinds of low-alloy high-speed steel after grinding were carried out. They were carried out on the flat-surface grinder with a 95A24K grinding wheel without cooling. The influence of grinding parameters was defined especially for: the quantity of secondary austenite, surface roughness, microhardness and grinding efficiency with a large range of grinding parameters: grinding depth 0.005–0.035 mm, lengthwise feed 2–6 m/min, without a cross-feed on the whole width of the sample. It was found that improvement of grinding properties of low-alloy high-speed steels is possible by efficient selection of their chemical composition. The value of the grinding efficiency is conditioned by grinding forces, whose value has an impact on the grinding temperature. To ensure high quality of the tool surface layer (i.e. a smaller amount of secondary austenite, lack of wheel burn and micro-cracks) in the case of sharpening of tools made of low-alloy high-speed steel, the grinding temperature should be as low as possible.</p></abstract>

Investigations of the surface layer characteristics of selected kinds of low-alloy high-speed steel after grinding were carried out. They were carried out on the flat-surface grinder with a 95A24K grinding wheel without cooling. The influence of grinding parameters was defined especially for: the quantity of secondary austenite, surface roughness, microhardness and grinding efficiency with a large range of grinding parameters: grinding depth 0.005–0.035 mm, lengthwise feed 2–6 m/min, without a cross-feed on the whole width of the sample. It was found that improvement of grinding properties of low-alloy high-speed steels is possible by efficient selection of their chemical composition. The value of the grinding efficiency is conditioned by grinding forces, whose value has an impact on the grinding temperature. To ensure high quality of the tool surface layer (i.e. a smaller amount of secondary austenite, lack of wheel burn and micro-cracks) in the case of sharpening of tools made of low-alloy high-speed steel, the grinding temperature should be as low as possible.

Surface Layer Properties of Low-Alloy High-Speed Steel after Grinding

Faculty of Mechanical Engineering and Aeronautics, Department of Manufacturing and Production Engineering, Rzeszow University of Technology, Al. Powstańców Warszawy 12, 35-959 Rzeszów,

Faculty of Mechanical Engineering and Aeronautics, Department of Materials Forming and Processing, Rzeszow University of Technology, Al. Powstańców Warszawy 12, 35-959 Rzeszów,

Acta Mechanica et Automatica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Surface Layer Properties of Low-Alloy High-Speed Steel after Grinding"}

Investigations of the surface layer characteristics of selected kinds of low-alloy high-speed steel after grinding were carried out. They were carried out on...

Surface Layer Properties of Low-Alloy High-Speed Steel after Grinding

Published Online: Dec 28, 2016

Page range: 275 - 279

Received: Oct 19, 2015

Accepted: Nov 28, 2016

DOI: https://doi.org/10.1515/ama-2016-0042

Keywords
Grinding, High-Speed Steel, Microhardness, Secondary Austenite, Surface Roughness

© 2016 Bialystok University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Surface Layer Properties of Low-Alloy High-Speed Steel after Grinding

Published Online: Dec 28, 2016

Page range: 275 - 279

Received: Oct 19, 2015

Accepted: Nov 28, 2016

DOI: https://doi.org/10.1515/ama-2016-0042

KeywordsGrinding, High-Speed Steel, Microhardness, Secondary Austenite, Surface Roughness

© 2016 Bialystok University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Grinding, High-Speed Steel, Microhardness, Secondary Austenite, Surface Roughness