Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Net Shaping Process to Minimize Cutting amount of Turbocharger Control Plate

터보차저 컨트롤 플레이트의 절삭량 최소화를 위한 정형공정

  • Yoon, Pil-Hwan (Department of Mechanical Engineering, Keimyung University) ;
  • Lee, Seon-Bong (Department of Automotive and Mechanical Engineering, Keimyung University)
  • 윤필환 (계명대학교 기계공학과) ;
  • 이선봉 (계명대학교 기계자동차공학과)
  • Received : 2017.05.22
  • Accepted : 2017.06.19
  • Published : 2017.08.31
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Abstract

Turbocharger is a device for increasing the power of a vehicle engine. The control plate is the main component for fixing the vane of the turbocharger. Now, the control plate is made of austenite steel cutting after the casting process. It has excellent corrosion, heat resistance and mechanical characteristics of material. However, present the process is made by cutting after casting. when cutting is processed after casting, so materials, processing time, and processing energy are lost. Therefore, this study proposes a process to powder compact use of stainless steel Deklak2 and to minimize amount of cutting through net shape process. The mechanical properties of Deklak2 were verified by tensile test, hardness test and relative density measurement, and the governed equation was defined. Also, the curvature radius 1, 2 and the density, affects the shape, were selected as the design parameters, and the best process conditions was proposed through the Taguchi method and the evaluation of SN ratio. And then prototype molds were fabricated and compared with the results of the finite element analysis for the verification, and it was found that the tendency of relative density and dimension was coincided. Therefore, it was found that the amount of cutting can be minimized by only the net shape process after the sintering process and it can be applied to mass production.

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References

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