Wear-Resistance of Die Steel with Non-Smooth Surface Used to Pressure Casting Die Processed by Laser

Abstract:

Various non-smooth surfaces that are similar to the surfaces of animal biont are processed on the die steel by laser to improve the wear-resistance and life-span of die. The wear-resistance of various specimens was measured. The results show that the wear-resistance of specimens with non-smooth surfaces are better than that of the smooth specimen. The wear-resistance of specimen whole processed by laser is between the specimen in 2mm distance and 3mm distance. The shape and distributing distance of non-smooth unit affect the wear-resistance of non-smooth specimens because they affect the area ratio and the hardness of non-smooth unit. The non-smooth unit with higher hardness can underprop load, prevent abrasive particles from penetrating into the matrix material and block the wear progress during wear process. Thus the wear-resistance is improved.

• Periodical: Applied Mechanics and Materials (Volumes 155-156)
• Pages: 496-500
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.155-156.496
• Online since: February 2012
• Authors: L. Chen, T.J. Li, Zhi Wu Han, J. Chen
• Keywords: 3Cr2W8V, Laser Processing, Non-Smooth, Wear Resistance

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