Surface layer properties of low-alloy high-speed steel after grinding

• Autorzy: Jaworski J. , Trzepieciński T.

Identyfikatory

DOI

10.1515/ama-2016-0042

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

grinding; high-speed steel; microhardness; secondary austenite; surface roughness

PL

stal szybkotnąca; stal niskostopowa; szlifowanie; mikrotwardość stali; austenit; warstwa wierzchnia stali

• Wydawca: Oficyna Wydawnicza Politechniki Białostockiej
• Czasopismo: Acta Mechanica et Automatica
• Rocznik: 2016
• Tom: Vol. 10, no. 4
• Strony: 275--279
• Opis fizyczny: Bibliogr. 37 poz., tab., wykr.

Twórcy

autor

Jaworski J.

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

autor

Trzepieciński T.

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

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)