Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Powder Injection Molding Technology

분말 사출 성형 기술

  • 하태권 (포항산업과학연구원 부품신소재연구센터) ;
  • 성환진 (포항산업과학연구원 부품신소재연구센터) ;
  • 안상호 (포항산업과학연구원 부품신소재연구센터) ;
  • 장영원 (포항공과대학교 신소재공학과)
  • Published : 2003.10.01
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Abstract

Powder injection molding (PIM) uses the shaping advantage of injection molding but is applicable to metals and ceramics. This process combines a small quantity of polymer with an inorganic powder to form a feedstock that can be molded. After shaping, the polymeric binder is extracted and the powder is sintered, often to near-theoretical densities. According1y, PIM delivers structural materials in a shaping technology previously restricted to polymers. The process overcomes the shape limitations of traditional powder compaction, the costs of machining, the productivity limits of isostatic pressing and slip casting, and the defect and tolerance limitations of conventional casting. Since 1980s when major attention was given to PIM process, it has been widening the application area from small parts with complex shape and tailored properties to structural parts requiring strength and ductility as in automotive, military and medical industries.

Keywords

References

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