Effect of laser path overlap on surface roughness and hardness of layer in laser cladding

被引：31
作者：
Tanigawa, D. [1 ]
Abe, N. [2 ]
Tsukamoto, M. [2 ]
Hayashi, Y. [2 ]
Yamazaki, H. [2 ]
Tatsumi, Y. [3 ]
Yoneyama, M. [3 ]
机构：
[1] Osaka Univ, Grad Sch Engn, Suita, Osaka 5650871, Japan
[2] Osaka Univ, Joining & Welding Res Inst, Ibaraki, Osaka 5670047, Japan
[3] Osaka Fuji Corp, Amagasaki, Hyogo 6600811, Japan
来源：
SCIENCE AND TECHNOLOGY OF WELDING AND JOINING | 2015年 / 20卷 / 07期
关键词：
Diode laser; Flat-top beam profile; Laser cladding; Overlap ratio; Surface roughness; Vickers hardness; B-SI COATINGS; DIODE-LASER; TOOL STEEL; ALLOY; MICROSTRUCTURE; PARAMETERS;
D O I：
10.1179/1362171815Y.0000000044
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A Ni-Cr-Si-B alloy coating was produced on a type 304 stainless steel plate by laser cladding. A diode laser with a flat-top beam profile was used in this experiment. The effects of focused laser spot overlap on surface roughness (Ra) and Vickers hardness were investigated. Ra and the Vickers hardness of the cladding layers decreased as the overlap ratio increased. Cladding layers that maintained a hardness comparable to that of the source powder material were produced at overlap ratios of <70%.
引用
收藏
页码：601 / 606
页数：6
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