Research on surface finish of thin-wall parts by laser with coaxial inside-beam powder feeding
Source abstract
Abstract
Surface quality is an important performance indicator of laser metal deposition. Based on annular laser beam internal powder feeding technology, the effect of higher energy of the outer side of the annular beam on the surface roughness and waviness of thin-wall parts is studied in this paper. The influences of laser power, scanning speed, and powder feeding rate on the surface finish of thin-wall parts are investigated. The results show that the laser power has a significant effect on surface finish. With the increase in laser power, the roughness decreases and the waviness increases first and then decreases. High laser power can improve surface finish. As the scanning speed increases, the roughness decreases first and then increases, and the waviness decreases. The scanning speed has a significant influence on surface waviness. Increasing the powder feeding rate is not beneficial to surface quality because the value of the roughness and the surface waviness will add with its rising.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Additive Manufacturing Materials and Processes · Laser Material Processing Techniques · Additive Manufacturing and 3D Printing Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Mechanical and Electrical Engineering, Soochow University 1 , Suzhou, Jiangsu 215021, China
Suzhou Institute of Industrial Technology 2 , Suzhou, Jiangsu 215104, China
School of Optoelectronic Science and Engineering, Soochow University 3 , Suzhou, Jiangsu 215021, China
Funding
National Natural Science Foundation of China · Natural Science Foundation of Jiangsu Province · Qinglan Project of Jiangsu Province of China
References (21)
Show source-provided references
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