Transactions of Materials and Heat Treatment

Title：Research on service life improvement of Style crank die using laser cladding cermet technology

Authors： LI De-chao1 3 CHEN Hai-peng2 HAN Hai-he2 YANG Lan2 DONG Jun-hui3

Unit： 1.Material and Metallurgy School Inner Mongolia University of Science and Technology Baotou 014010 China 2.Inner Mongolia First Machinery Group Corporation Baotou 014032 China 3.School of Materials Science and Engineering Inner Mongolia University of Technology Huhehot 010051 China

KeyWords： 5CrMnMo steel hot forging die overlay cladding laser surface melting covering coat

ClassificationCode：TG315.2

year,vol(issue):pagenumber：2012,37(6):77-80

Abstract：

Laser alloying treatment test was carried out on Style crank die material 5CrMnMo steel surface in order to improve its service life. Both microstructure and distribution of micro hardness of the material were investigated after laser alloying. Crack free and shaped alloying layer which was metallurgically boned with substrate was fabricated through processing parameter optimization. The experimental results show that laser alloying with the allying material as coat improves the original microstructure evidently, the average hardness is proved to be HV0.2750, and the service life of Style crank die is significantly increased by 60%.

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Reference：

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