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| 3 Cr3 Mo3 VNb 在热冲孔中的应用研究 |
| Application Research of 3 Cr3 Mo3 VNb in Hot Punching |
| Received:September 10, 2013 Revised:October 01, 2013 |
| DOI：10.3969/j.issn.1674-6457.2013.06.005 |
| 中文关键词: 3 Cr3Mo3 VNb 热冲孔 冲头 冲头寿命 |
| 英文关键词: 3Cr3Mo3VNb hot punching punch punch life |
| 基金项目:国防基础科研重点项目( A1020110004) |
| Author Name | Affiliation | | HUANG Shao-dong | No. 59 Institute of China Ordnance Industry, Chongqing 400039, China | | PANG Dan | Liaoshen Industry Group Co. , Ltd. , Shenyang 110045, China | | SUN Feng | Liaoshen Industry Group Co. , Ltd. , Shenyang 110045, China | | YAN Feng | Liaoshen Industry Group Co. , Ltd. , Shenyang 110045, China | | ZHANG Zhi-ming | No. 59 Institute of China Ordnance Industry, Chongqing 400039, China | | ZHAO Zhi-xiang | No. 59 Institute of China Ordnance Industry, Chongqing 400039, China | | ZHAO Zu-de | No. 59 Institute of China Ordnance Industry, Chongqing 400039, China |
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| 中文摘要: |
| 高合金钢热冲孔冲头寿命关系到模具与产品成本、生产效率、自动化设备的使用,因此,应注重冲头的选材、材料制备与冲头制造工艺。 用 3 Cr3Mo3 VNb 作为高合金钢热冲孔冲头,为提高模具寿命,在材料制备上,优化了成分,采用电渣重熔冶炼,减少杂质,毛坯锻造两次,用大锻造比锻造,冲头热处理用真空炉,三次回火,热处理硬度取 HRC42 ~ 46 ,冲头表面处理采用镀铬工艺,开展了热冲孔工艺试验。 结果表明,用3 Cr3Mo3 VNb 可使冲孔冲头寿命平均达到 800 件以上。 |
| 英文摘要: |
| The punch life of hot punching for high-alloy steel is related to die and product cost, production efficiency, use of automatic equipment, therefore the choice of punch material, billet preparation and punch manufacture should be paid attention. 3Cr3Mo3VNb is used in hot punching of high-alloy steel. In order to improve the punch life the punch material composition are optimized. Electroslag remelting is used in refining and the impurity is reduced. The billet is forged twice with large forging ratio. Vacuum furnace is used in heat treatment. Temper is conducted three times. The hardness after heat treatment is taken as HRC42 ~ 46. Chrome-plating is used as surface treatment. Hot punching experiment is conducted. It shows that the average life of punch by 3Cr3Mo3VNb is over 800. |
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