Laser surface hardening of ductile cast iron for vehicle die

Yanghui Xu; Jichang Liu

doi:10.1117/12.870259

17 November 2010 Laser surface hardening of ductile cast iron for vehicle die

Yanghui Xu, Jichang Liu

Proceedings Volume 7843, High-Power Lasers and Applications V; 78431N (2010) https://doi.org/10.1117/12.870259
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

Experiments of laser transformation hardening were performed with various process parameters on the surface of ductile cast iron block, which is often used for vehicle body. The distribution of microhardness along the case depth direction and the variation of microstructure of hardened track were investigated. Wear test was carried out using a ball-on-flat-type wear-test machine. The results indicate that the hardened layers after the laser surface hardening treatment have excellence wear resistance. It is seen that the surface hardness of ductile cast iron blocks increases greatly at suitable values of process parameters in laser transformation hardening, which satisfies the vehicle dies.

Citation Download Citation

Yanghui Xu and Jichang Liu "Laser surface hardening of ductile cast iron for vehicle die", Proc. SPIE 7843, High-Power Lasers and Applications V, 78431N (17 November 2010); https://doi.org/10.1117/12.870259

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