An effect of grinding on microhardness and residual stress in 20MnCr5 following single-piece flow low-pressure carburizing

• Autorzy: Stachurski W. , Krupanek K. , Januszewicz B. , Rosik R. , Wojcik R.

Identyfikatory

DOI

10.5604/01.3001.0012.7634

• Języki publikacji: EN

Abstrakty

EN

The aim of the experiment described in the paper was to determine the effect of selected conditions of abrasive machining on the size and distribution of microhardness and residual stresses developed in the technological surface layer of flat specimens made of 20MnCr5 steel. The specimens were subjected to single-piece flow low-pressure carburizing (LPC) and high-pressure gas quenching (HPGQ) in a 4D Quenching chamber, in order to achieve the effective case depth of ECD=0.4 mm. This was followed by grinding the specimens with Quantum and Vortex alumina grinding wheels made by Norton. Cooling and lubricating liquid were supplied to the grinding zone in both cases by the flood (WET) method and by the minimum quantity lubrication (MQL) method. The measurements for each specimen were made twice - after the thermo-chemical treatment and after the grinding. Microhardness and residual stress was measured by the X-ray method sin²Ψ. The final part of the article provides an analysis of the measurement results and presents conclusions and recommendations for further studies.

Słowa kluczowe

EN

vacuum carburizing; single-piece flow; surface grinding; microhardness; residual stress

• Wydawca: Wydawnictwo Wrocławskiej Rady FSNT NOT
• Czasopismo: Journal of Machine Engineering
• Rocznik: 2018
• Tom: Vol. 18, No. 4
• Strony: 73--85
• Opis fizyczny: Bibliogr. 30 poz., rys., tab.

Twórcy

autor

Stachurski W.

• Institute of Machine Tools and Production Engineering, Lodz University of Technology, Lodz, Poland

autor

Krupanek K.

• Institute of Materials Science and Engineering, Lodz University of Technology, Lodz, Poland

autor

Januszewicz B.

• Institute of Materials Science and Engineering, Lodz University of Technology, Lodz, Poland

autor

Rosik R.

• Institute of Machine Tools and Production Engineering, Lodz University of Technology, Lodz, Poland

autor

Wojcik R.

• The Jacob of Paradies University, Gorzow Wielkopolski, Poland

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).