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

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Thermal Shock Durability Test of a Gasoline Turbocharger Waste Gate Valve Assembly Manufactured by a Metal Injection Molding

금속분말사출성형공법을 이용한 가솔린 터보차저의 웨이스트 게이트 밸브 어셈블리 열 충격 내구 시험

  • Nam, Chungwoo (Graduate School of Mechanical Engineering, Keimyung University) ;
  • Han, Manbae (Department of Mechanical and Automotive Engineering, Keimyung University) ;
  • Chun, Bongsu (Graduate School of Mechanical Engineering, Keimyung University) ;
  • Shin, Jaesik (Graduate School of Mechanical Engineering, Keimyung University) ;
  • Kim, Jongha (Headquarter of Research and Development, PIMkorea) ;
  • Min, Doosik (Headquarter of Research and Development, PIMkorea)
  • Received : 2014.05.18
  • Accepted : 2014.08.18
  • Published : 2014.08.31
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Abstract

A waste gate valve (WGV) assembly for a gasoline turbocharger is typically manufactured by means of precision casting. In this study, however, it was newly manufactured in a more innovative way, metal injection molding (MIM) using Inconel 713C alloy, and its performance was tested in a 1.6L direct injection gasoline engine by a thermal shock durability test that lasted 300 hours, after which the results were compared to those of a precision-cast WGV assembly with regard to the engine intake boost pressure, turbine wheel speed, and transient intake pressure. It was found that the two WGV assemblies showed similar performance levels throughout the durability test.

Keywords

References

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