符永宏,王浩,杨烨刚,符昊,华希俊.不锈钢光纤激光毛化及其摩擦性能[J].表面技术,2015,44(1):96-101.
FU Yong-hong,WANG Hao,YANG Ye-gang,FU Hao,HUA Xi-jun.Experiment Research on Fiber Laser Texturing of Stainless Steel and Its Friction Properties[J].Surface Technology,2015,44(1):96-101
不锈钢光纤激光毛化及其摩擦性能
Experiment Research on Fiber Laser Texturing of Stainless Steel and Its Friction Properties
投稿时间:2014-08-03  修订日期:2015-01-20
DOI:
中文关键词:  光纤激光毛化  毛化形貌  显微硬度  摩擦特性
英文关键词:fiber laser texturing  textured topography  micro-hardness  friction properties
基金项目:国家自然科学基金项目(51175233,51375211);高等学校博士学科点专项科研基金(20113227110016);国家重大科技成果转化项目(20604033)
作者单位
符永宏 江苏大学 机械工程学院, 江苏 镇江 212013 
王浩 江苏大学 机械工程学院, 江苏 镇江 212013 
杨烨刚 江苏大学 机械工程学院, 江苏 镇江 212013 
符昊 江苏大学 机械工程学院, 江苏 镇江 212013 
华希俊 江苏大学 机械工程学院, 江苏 镇江 212013 
AuthorInstitution
FU Yong-hong School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China 
WANG Hao School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China 
YANG Ye-gang School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China 
FU Hao School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China 
HUA Xi-jun School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China 
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中文摘要:
      目的 研究光纤激光毛化应用于模具表面,改善其摩擦特性的可行性。 方法 采用单因素变化法,研究激光功率、脉宽、频率、离焦量对毛化形貌的影响规律,分析毛化区域的显微硬度,并对不同形貌的毛化试样和光滑试样的摩擦性能进行对比。 结果 匹配特定的参数,可获得火山口形貌或球冠状形貌。 毛化区域的硬度相对基材提高显著,最大提高了近 4 倍。 同时,在模拟冷冲压拉深模具低速重载工况的摩擦实验中,毛化试样的摩擦系数比光滑试样大,同时随着毛化点直径、间距的增大,摩擦系数相应减小。 结论 激光毛化技术可对材料表面进行改形改性,能够用于优化模具表面摩擦特性。
英文摘要:
      Objective To investigate the feasibility of fiber laser texturing on the mold surface and the improvement of the friction properties. Methods Using single factor variation method, the influencing laws of the power, pulse width, frequency, and defocus amount on different textures were investigated, and the hardness of the textured topography was also measured. Meanwhile, the friction properties of stainless steel samples with different surface textures disposed by laser texturing as well as smooth samples were comparatively investigated. Results It showed that textures such as crater shape and sombrero shape texture topography could be obtained by certain laser parameters and supplementary parameters. The hardness of the textured points was significantly increased, and the maximum value was nearly four times the hardness of the matrix material. During the friction experiment, compared with smooth samples, the friction coefficients of samples with different surface textures were higher under the low speed and heavy load condition to simulate drawing mold. With the increase of the diameter and spacing, the friction coefficient decreased. Conclusion Laser texturing could make a change to surface topography and property, and could therefore be used to optimize the surface friction properties of molds.
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