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http://dx.doi.org/10.5139/JKSAS.2022.50.4.223

Analysis of Variations in Deformations of Additively Manufactured SUS316L Specimen with respect to Process Parameters and Powder Reuse  

Kim, Min Soo (Inha University)
Kim, Ji-Yoon (Inha University)
Park, Eun Gyo (Inha University)
Kim, Tae Min (Inha University)
Cho, Jin Yoen (Inha University)
Kim, Jeong Ho (Inha University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.50, no.4, 2022 , pp. 223-231 More about this Journal
Abstract
Residual stress that can occur during the metal additive manufacturing process is an important factor that must be properly controlled for the precise production of metal parts through 3D printing. Therefore, in this study, the factors affecting these residual stresses were investigated using an experimental method. For the experiment, a specimen was manufactured through an additive manufacturing process, and the amount of deformation was measured by cutting it. By appropriately calibrating the measured data using methods such as curve fitting, it was possible to quantitatively analyze the effect of process parameters and metal powder reuse on deformation due to residual stress. From this result, it was confirmed that the factor that has the greatest influence on the magnitude of deformation due to residual stress in the metal additive manufacturing process is whether the metal powder is reused. In addition, it was confirmed that process parameters such as laser pattern and laser scan angle can also affect the deformation.
Keywords
Additive Manufacturing; Deformation Measurement; Residual Stress; Process Parameters; Powder Reuse;
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