We solve difficult problems with integrated support from carbide materials to finished product manufacturing!
Material List
MC20
JIS standard: VC-40
Features
Carbide grade with outstanding abrasion and adhesive wear resistance.
Developed for machining soft metals (iron and copper), and has excellent wear and corrosion resistance due to decreased affinity with soft metals by reducing Co binder phase and use of special WC.
Equipments using MC20
| Press working machine | Cutter machine |
| Multi forming machine | Crusher |
Applications of MC20
| Punch, Die | Hammer |
| Chuck Claw | Cutting blade |
Parts manufactured with MC20
| Spring | Clock Parts |
| Pin grid Array | Heat Exchanger |
| Heat Sink, Cooling fin | Electrode Material for Lithium Ion Battery |
Properties of MC20
| Abrasion resistance | Adhesion resistance |
| Pure iron / Pure copper workability general load ≦1.0 | Stainless workability general load ≦0.8mm |
| Aluminum workability heavy load ≦2.0 | Corrosion resistance |
Examples of solutions using MC20
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Improvement of brass drawing die breakage
- Equipment of installation： Stamping machine
- Use： Die
- Issue： Short life Breakage
- Carbide Material： MC20
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非公開: リベットカシメ用ポンチの焼き付きの改善
- Equipment of installation： Stamping machine
- Use： Staking punch
- Issue： Short life Early seizure
- Carbide Material： MC20
- Conventional grade： G3
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非公開: 銅材+樹脂材の複合材料加工における早期摩耗の改善
- Equipment of installation： Stamping machine
- Use： Punch
- Issue： Short life Wear at an early stage
- Carbide Material： MC20 KD10
- Conventional grade： KD20
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非公開: SPCC抜き用パンチの材種変更による寿命向上 （完全非破壊での摩耗状態継続調査）
- Equipment of installation： Stamping machine
- Use： Punch
- Issue： Short life
- Carbide Material： MC20
- Conventional grade： VM-50
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非公開: SPCC絞り加工金型摩耗の改善
- Equipment of installation： Stamping machine
- Use： Die
- Issue： Short life Adhesive wear
- Carbide Material： MC20
- Conventional grade： VM-40
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非公開: 鉄系材料の焼き付きの改善
- Equipment of installation： Stamping machine
- Use： Punch
- Issue： Short life Early seizure
- Carbide Material： MC20
- Conventional grade： G3
Carbide products using MC20
Other characteristics
Physical Properties
| Our grades | Hardness (HRA) | Transverse rupture strength [GPa] | Co [％] |
|---|---|---|---|
| MC20 | 90.0 | 2.8 | 6 |
| Reference: G3 | 90.0 | 2.7 | 8 |
Usual material problem
Attraction of Co in cemented carbide
from metals with high affinity to Co
▼
Displacement of Co in the cemented carbide
▼
Damage of mold
Characteristic of MC20
Reduction of Co and Selection of special WC
▼
Decreasing the high affinity of Co
Comparison of reaction to copper (Analysis of EPMA)
Above-shown photos are the cross-section surface of the test pieces which are compacted wire copper in center of MC20 and G4 after sintering and treated by HIP.
The bar graph shows the concentration of copper.
Result;
MC20: Copper wire remains in the original position without diffusing.
G4: Copper wire has diffused in the material.
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Catalog
We will provide high value-added cemented carbide with the achievements and know-how cultivated so far.
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Consultation and Inquiry
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FAQ
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