Material List
KD20
JIS standard: VF-40
Features
KD種の中で最もスタンダードな材種。当社の出荷重量の半分を占める人気材種です。
KD20が搭載される設備
粉末成形機 | プレス加工機 |
切断機 | マルチフォーミングマシン |
KD20の用途
ダイ・パンチ・コア・ストリッパー | 曲げパンチ・曲げダイ・シェービングパンチ |
カッター・ガイド・搬送レール・チャック爪 | ロータリーカッター |
KD20で生産される部品
端子、半導体リードフレーム、LED | 不織布 |
放熱板、ヒューズ、抵抗器 | ギア・バルブシート |
乾電池・正極缶・負極缶、電池材料 |
KD20の特性
耐摩耗性 | 耐チッピング性 |
KD20を使用した課題解決事例
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Improvement of seizure in staking aluminum work
- Equipment of installation: Stamping machine
- Use: Staking punch
- Issue: Short life Early seizure
- Carbide Material: KD20
- Conventional grade: EF20
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Improvement of early stage wear in carbon powder compacting
- Equipment of installation: Powder mill
- Use: Mold die Mold die
- Issue: Short life Wear at an early stage
- Carbide Material: KD20
- Conventional grade: G3
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黄銅+Snメッキ材抜き加工での寿命向上提案
- Equipment of installation: Stamping machine
- Use: Die
- Issue: Short life
- Carbide Material: KD10
- Conventional grade: KD20
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原因不明の連続金型早期破損の対策
- Equipment of installation: Stamping machine
- Use: Punch
- Issue: Short life Breakage
- Carbide Material: KD20
- Conventional grade: VF-40
-
リン青銅打ち抜き早期摩耗の改善
- Equipment of installation: Stamping machine
- Use: Die
- Issue: Short life Wear at an early stage
- Carbide Material: KD20
- Conventional grade: VF-40
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原因不明の金型早期摩耗の改善①
- Equipment of installation: Stamping machine
- Use: Punch
- Issue: Short life Cause investigation
- Carbide Material: KD20
- Conventional grade: VC-50
KD20を使用した超硬製品
その他の特徴
Physical Properties
Our grades | Hardness (HRA) | Transverse rupture strength [GPa] | Co amount [%] |
---|---|---|---|
KD05 | 92.0 | 3.2 | 8 |
KD10 | 91.0 | 3.4 | 10 |
KD20 | 90.0 | 3.7 | 13 |
KD30 | 89.0 | 3.7 | 16 |
KD40 | 88.0 | 3.7 | 19 |
KD50 | 84.5 | 3.0 | 28 |
Reference: G3 | 90.0 | 2.7 | 8 |
Reference: G2 | 91.0 | 2.5 | 6 |
Relation between wear-resistance and machining property for KD grade
Chipping-resistance characteristics
Comparison result of profile grinding test
Hardness and TRS
Fracture toughness value
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