What is GPM?
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.
ADVANTAGES
- • 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.
Shorter process
(10~20%)
Mechanical Properties Comparison
| 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.
PROCESS
- Granulation
(분말과립화)
Fine Powder → Granuled Powder - Forming Process
(압축성형)
제품형상 구현(성형품) - High Density Sintering Process
(소결)
금속성질부여(소결품)
APPLICATION
▶ Applicable GPM to Slide block (Small)
- Elimination original machining process is possible →
(Minimization of machining process → Cost reduction - Reduction of manufacturing cost by eliminating Debinding process
- No difference of measurement result of dimension spread between machined parts and GPM parts
((Production feasibility is guaranteed)
▶ Other applicable item
- • Sliding Block(Large)
- • Vane Ring & DISC
- • Cover Ring
- • Rod-Steering
- • Base Ring
- • Gear
- • Bushing
- • Vane Lever
- • and so on…
