Prediction about ground hardening layers distribution on grinding chatter by contact stiffness

• Autorzy: Sun C. , Duan J. , Lan D. , Liu Z. , Xiu S.

Identyfikatory

DOI

10.1016/j.acme.2018.06.010

• Języki publikacji: EN

Abstrakty

EN

The grinding hardening is an integrated manufacturing technology which combines the surface hardening theory and the grinding technology. However, the grinding chatter accompanies with the whole grinding hardening process. It is the existence of the grinding chatter that makes the transformation unsteady. To this end, the paper presents a three-hybrid model to investigate the relationship between the grinding chatter and the grinding hardening layers distribution. The dynamic grinding force with the analytic and numerical method is calculated firstly. Then the finite difference method (FDM) is used to obtain the dynamic temperature distribution accordingly. Thirdly, the cellular automata (CA) method is applied to calculate the transformed microstructure distribution under different chatter strengths. The study shows that the thickness of the grinding hardening layers goes up with the increase of the grinding chatter. However, the quality of the grinding hardening layers reduces with the increase of the chatter strength. In addition, the martensite content varies with different hardening layers since each layer has its own unique temperature distribution. Moreover, metallurgical experiments are conducted to validate the proposed model. The model is anticipated to be meaningful for the improvements of workpiece's mechanical properties by controlling the chatter strength in the industry manufacturing.

Słowa kluczowe

EN

grinding hardening; temperature distribution; grinding chatter; transformed microstructure; martensite content

PL

martenzyt; szlifowanie; mikrostruktura

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2018
• Tom: Vol. 18, no. 4
• Strony: 1626--1642
• Opis fizyczny: Bibliogr. 37 poz., fot., rys., wykr.

Twórcy

autor

Sun C.

• Northeastern University, China

autor

Duan J.

• Northeastern University, China

autor

Lan D.

• Northeastern University, China

autor

Liu Z.

• Northeastern University, China

autor

Xiu S.

• Northeastern University, China

Bibliografia

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Uwagi

PL

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