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http://dx.doi.org/10.5228/KSPP.2003.12.6.521

Powder Injection Molding Technology  

하태권 (포항산업과학연구원 부품신소재연구센터)
성환진 (포항산업과학연구원 부품신소재연구센터)
안상호 (포항산업과학연구원 부품신소재연구센터)
장영원 (포항공과대학교 신소재공학과)
Publication Information
Transactions of Materials Processing / v.12, no.6, 2003 , pp. 521-528 More about this Journal
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
Powder Injection Molding; Status of Technology; Binder; Feedstock; Sintering; Vision;
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