Product Code: ICAL05_P572

Researches of Cast Iron Piston Rings Strengthened by Laser
Authors:
Zhang Qingmao, South China Normal University; Guangzhou Peoples Republic of China
Wenjin Liu, The Center of Laser Processing, Dept. of Mechanical Engineering, Tsinghua Univ.; Beijing Peoples Republic of China
Jianhong Liao, The Center of Laser Processing, School for Information and Photoelectron Science Engineering, South China Normal Univ.; Guangzhou Peoples Republic of China
Xiwei Zhang, Wuhan Univ.; Wuhan Peoples Republic of China
Presented at ICALEO 2005

The SRV tests show that laser remelting, laser alloying and laser cladding processes reduce the wear loss of both the piston ring and the partner cylinder liner. It can be concluded that the piston rings processed by laser strengthening have good wear resistance and extensive partner adaptability. The piston rings processed by laser cladding have the lowest friction coefficient (0.067~0.085). It is deduced that the piston ring processed by laser cladding has the best wear resistance and partner adaptability.