GRANULATED POWDER METALLURGY
GPM(Granulated Powder Metallurgy)란 ?
분말야금공법의 생산성과 MIM의 고밀도소결 기술을 융합한 제조기술 입니다.
GPM(Granulated Powder Metallurgy) is a new technology that use general PM (Powder Metallurgy) Process with Granulated Fine Powder but is applicable to higher mechanical properties.

Granulated Fine Powder + PM Process = GPM

특·장점
MIM → Kneading → Injection Molding → Debinding → Sintering → Finish Machining, GPM →Pressing→Sintering→Finish Machining
  • • Simple process without Kneading process and Debinding process.
  • • Mechanical properties same as MIM (Metal Injection Molding), by using the same fine powder.
  • • Reduce sintering temperature because of higher green density.
  • • Less sintering-deformation because of lower shrinkage.

공정단축

(10~20% Cost Saving)

Mechanical Properties Comparison

Typical material & properties>
Properties Casring PM MIM GPM (PM+MIM)
Relative Density 100% ~90% >95% >95%
Tensile Strength 100% 70% 100% 100%
Surface Roughness 0.4~2㎛ 2㎛ ~0.8㎛ ~0.8㎛
Materials Cost Low Low High Low
Design Flexibility Low Medium High Medium
Production Capacity Low Volume High Volume High Volume High Volume
Diversity of Materials Medium Medium High Medium
Available Weight 0.1g Up ~2,000g ~150g ~2,000g
  • • GPM is suitable for parts with better mechanical properties than PM.
  • • GPM is able to make simpler design and large parts than MIM.
공정

Process

  • Granulation
    (분말과립화)
    Fine Powder → Granuled Powder
  • Forming Process
    (압축성형)
    제품형상 구현(성형품)
  • High Density Sintering Process
    (소결)
    금속성질부여(소결품)

활용분야

▶ Slide block(Small) 제품의 GPM 적용

  • • 기존 가공공정 삭제 가능 → 가공공정 최소화 → 비용 절감
  • • 탈지 공정 감소로 제조경비 절감
  • • 가공품과 치수 산포도 측정결과 차이 없음 확인(생산가능성 확보
Cost Saving
Slide Block(Small)

▶ 기타 적용 ITEM

  • • Sliding Block(Large)
  • • Vane Ring & DISC
  • • Cover Ring
  • • Rod-Steering
  • • Base Ring
  • • Gear
  • • Bushing
  • • Vane Lever
  • • and so on…
Rod-Steering, Bushing