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Takeyuki Abe,Hiroyuki Sasahara 한국정밀공학회 2015 International Journal of Precision Engineering and Vol. No.
The direct metal lamination is a kind of the additive manufacturing process using the arc welding technology; where the molten metalmade by the arc discharge is accumulated successively in this process. Overhanging shapes can be fabricated without supportmaterials but lamination height error is caused in largely inclined area. In this paper, the lamination height error was estimated byusing the accumulated metal shape model. Then, the lamination height error was compensated by changing welding torch feed speedso that the top surface of the laminated layer became horizontal. As a result, not only the lamination height error was decreased by50%, but average inclination angle error was decreased by 50%.