Effect of Laser Parameters on Sintered Powder Morphology
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2010年第4期
论文作者：Byeong-Don Joo Jeong-Hwan Jang Jae-Ho Lee Young-Myung Son Young-Hoon Moon
文章页码：375 - 378
摘 要：Selective laser sintering is a kind of rapid prototyping process whereby a three-dimensional part is built layerwise by laser scanning a powder. This process is highly inffuenced by powder and laser parameters such as laser power, scan rate, spot size and layer thickness. Therefore a study on fabricating a line with Fe-Ni-Cr powder on AISI H13 tool steel has been performed by selective laser sintering. In this study, fabrication was performed by experimental facilities consisting of a 200W fiber laser which can be focused to 0.08 mm and atmospheric chamber which can control atmospheric pressure with argon. The line was fabricated with various laser power, scan rate and layer thickness. Line width and surface quality were investigated. With power increase or layer thickness decrease, line width was decreased and line surface quality was improved with scan rate optimization.
Byeong-Don Joo，Jeong-Hwan Jang，Jae-Ho Lee，Young-Myung Son，Young-Hoon Moon
Engineering Research Center for Net Shape and Die Manufacturing,School of Mechanical Engineering,Pusan National University
摘 要：Selective laser sintering is a kind of rapid prototyping process whereby a three-dimensional part is built layerwise by laser scanning a powder. This process is highly inffuenced by powder and laser parameters such as laser power, scan rate, spot size and layer thickness. Therefore a study on fabricating a line with Fe-Ni-Cr powder on AISI H13 tool steel has been performed by selective laser sintering. In this study, fabrication was performed by experimental facilities consisting of a 200W fiber laser which can be focused to 0.08 mm and atmospheric chamber which can control atmospheric pressure with argon. The line was fabricated with various laser power, scan rate and layer thickness. Line width and surface quality were investigated. With power increase or layer thickness decrease, line width was decreased and line surface quality was improved with scan rate optimization.
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