Abrasive jet polishing on SKD61 mold steel using SiC coated with Wax

作者：Yan B H^*; Tsai F C; Sun L W; Hsu R T

来源：Journal of Materials Processing Technology, 2008, 208(1-3): 318-329.

DOI：10.1016/j.jmatprotec.2007.12.145

• Wax-coated SiC abrasives
• Gas atomization
• Abrasive jet polishing
• Mirror machining

This study investigates the abrasive jet polishing (AJP) of electro-discharge-machined and ground SKD61 mold steel specimens using #2000, #3000 or #8000SiC particles and compound additives comprising either pure water, pure water and water-solvent machining oil, or pure water and water wax. The results show that when the polishing process is performed using #2000SiC particles with a pure water and water wax additive, the surface roughness of the electro-discharge-machined SKD61 surface is reduced from Ra: 1.0 mu m to 0.08 mu m within 90 min. Polishing the ground SKD61 surface using #3000SiC particles with pure water and water wax, the surface roughness is found to reduce from an initial value of Ra = 0.36 mu m to a final value of Ra = 0.054 mu m within 60 min. To improve the polishing performance, a gas atomization technique is employed to fabricate wax-coated #3000SiC particles. The results show that when polishing is performed using these wax-coated particles and a compound additive of pure water and water wax, the roughness of the ground surface is from Ra = 0.36 mu m to 0.049 mu m within 45 min. Overall, the results show that the use of wax-coated abrasive particles reduces the polishing time and achieves an improved surface finish.

• 出版日期2008-11-21
• 单位中央民族大学