江苏大学学报（自然科学版）2013，Vol.34Issue(4)：450-454,5.DOI:10.3969/j.issn.1671-7775.2013.04.015
线接触副球墨铸铁表面激光织构对摩擦学特性的影响
Influence of laser surface texturing on tribological performance of ductile cast iron under line contact conditions
摘要
Abstract
To investigate the influence of laser surface texturing on the tribological properties of ductile cast iron under line contact conditions,the Q switched light-pumped Nd:YAG laser was used with laser processing technology of single pulse at a time and repeating at intervals to treat the ductile cast iron specimen end face.The regular network of micro-dimples with four different depth and four different area density were fabricated.A series of contrast experiments on the ductile cast iron specimen were performed by the line contact conditions on cylindrical pin-on-disc friction and wear tester to realize slide-roll combination movement.The experimental results show that compared with the smooth surface under the same test condition,micro-dimples surface has better friction reducing effect.The effects of micro-dimple depth and area density on the tribological properties were also investigated.There are optimum design parameters of micro-dimples to achieve the best effect of friction reduction and enhanced anti-scuffing performance.关键词
球墨铸铁/激光表面织构/线接触/摩擦学特性/微凹腔Key words
ductile cast iron/ laser surface texturing/ line contact/ tribological property/ micro-dimple分类
机械制造引用本文复制引用
袁润,程云荣,符永宏,华希俊,杨东燕,陈美云..线接触副球墨铸铁表面激光织构对摩擦学特性的影响[J].江苏大学学报（自然科学版）,2013,34(4):450-454,5.基金项目
国家重大科技成果转化项目(2060403) （2060403）
国家自然科学基金资助项目(51175233) （51175233）
江苏省科技支撑计划项目(BE2010060) （BE2010060）
镇江市工业科技支撑项目(GY2012039) （GY2012039）
