Application of Carburizing Treatment to Dies in Press Processing of 1470 MPa class High Tensile Strength Steel
1470MPa 級ハイテン材のプレス加工における金型への浸炭処理の適用
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- Available on the other site
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- Publication code
- 20264615
- Paper/Info type
- JSAE Transaction
Vol.57 No.5
- Pages
- 954-960(Total 7 p)
- Date of publication
- Sep 2026
- Publisher
- JSAE
- Language
- Japanese
Detailed Information
| Category(J) | 論文 Translation |
|---|---|
| Category(E) | Paper |
| Author(J) | 1) 金沢 竜太朗, 2) 西野 創一郎, 3) 幸田 稔 |
| Author(E) | 1) Ryutaro Kanazawa, 2) Souichiro Nishino, 3) Minoru Kouta |
| Affiliation(J) | 1) 茨城大学, 2) 茨城大学, 3) 山野井精機(株) |
| Abstract(J) | 1470MPa級ハイテン材のプレス加工における金型耐久性向上を目的に，SKD11基材へ浸炭処理または真空焼入れ処理を施したTRD-VC被覆金型を作製し，TRD処理のみの場合と比較した。その結果，両処理ともき裂を低減し耐久性向上に有効であった。特に浸炭処理は皮膜硬さ・膜厚・基材硬さを向上させ，変形抑制と耐久性向上に最も効果的であった。 Translation |
| Abstract(E) | This study aimed to improve die durability during press forming of high-tensile steel with a tensile strength of 1470 MPa. Test dies were fabricated by carburizing the base material (SKD11) and applying vacuum quenching. By comparing results with dies treated only with TRD, differences in damage levels and changes in coating and base material properties were evaluated. Dies carburized before TRD-VC coating and those vacuum quenched after TRD-VC coating exhibited fewer cracks after press forming than dies treated with TRD alone, indicating potential for improved durability. Carburizing before TRD-VC coating increases coating hardness, coating thickness, and substrate hardness, suppressing die deformation and improving durability. Vacuum quenching after TRD-VC coating increases substrate hardness, contributing to deformation suppression, but heat during quenching causes coating damage and reduces coating thickness. |
