Transactions of Materials and Heat Treatment

Title：New blanking die structure for ultra high speed stamping

Authors： Shan Yun Wu Bin

Unit： School of Mechanical Technology

KeyWords： U-shaped blanking ultra high speed stamping blanking die scrap cutting progressive die

ClassificationCode：TG386

year,vol(issue):pagenumber：2020,45(3):119-124

Abstract：

In order to achieve the mass production for ultra high speed stamping, the U-shaped blanking structure was optimized, and the two stations of original separate U-shaped blanking and scrap cutting were replaced by the one station process of blanking and scrap cutting, the new structure combined the cutting stations of product and strap to improve the strength of U-shaped punch, so shorten the die length, reduce skip scrap rate and guarantee the quality of product. Therefore, the new structure obtained the product and scrap cutting at the same station without transferring the scraps through the carrier, so the raw material width was decreased, the cost was saved, and the incorrect feeding was decreased. At the same time, the die speed was improved from 800 beats per minute to 2000 beats per minute to realize the purpose of ultra high speed, and the new structure was successfully extended to the other similar structures to achieve technical interoperability.

Funds：

国家自然科学基金资助项目（51165021）

单云（1971-），女，硕士，副教授 E-mail：shany1234@163.com

Reference：

［1］孙成智，陈关龙，林忠钦,等. 控制压边力改善铝合金板成形性能的研究
［J］. 材料科学与工艺，2005，13(4): 445-448.

Sun C Z，Chen G L，Lin Z Q，et al.Control of the blankholder force to improve the formability of aluminum alloy sheet
［J］. Materials Science and Technology，2005，13(4): 445-448.

［2］Bariani P F，Bruschi S，Ghiotti A，et al. Testing formability in the hot stamping of HSS
［J］. CIRP Annals，2008，57(1): 265-268.

［3］Sha N，Hmanesh Bank. Material advantages
［J］. Automotive Engineer，2003，10: 38-40.

［4］彭晓东，李玉兰，刘江. 轻合金在汽车上的应用
［J］. 机械工程材料，1999，23 (2): 3-6，25.

Peng X D，Li Y L，Liu J. The application of light alloys to automotive industry
［J］. Materials for Mechanical Engineering, 1999，23 (2): 3-6，25.

［5］Bunk W G J. Aluminium RS metallurgy
［J］. Materials Science and Engineering: A，1991，134: 1087-1097.

［6］马高山，张颂阳. 变形铝镁合金温成形技术研究和发展现状
［J］. 热加工工艺，2010,39(11): 23-27.

Ma G S，Zhang S Y. Research and development status on warm forming of AlMg wrought alloys
［J］. Hot Working Technology，2010,39(11): 23-27.

［7］Naderi M，Uthaisangsuk V，Prahl U，et al. A numerical and experimental investigation into hot stamping of boron alloyed heat treated steels
［J］. Steel Research International，2008，79(2): 77-84.

［8］Cavaliere P. Hot and warm forming of 2618 aluminium alloy
［J］. Journal of Light Metals，2002，2(4): 247-252.

［9］Hyunwoo So，Hartnut Hoffmann. Design of hot stamping tools and blanking strategies of ultra high strength steels
［J］. Springer Proceedings in Physics，2008,124:315-325.

［10］Mori K，Maki S，Tanaka Y. Warm and hot stamping of ultra high tensile strength steel sheets using resistance heating
［J］. CIRP Annals，2005，54(1): 209-212.

［11］Yanagida A，Yanagimoto J. A novel approach to determine the kinetics for dynamic recrystallization by using the flow curve
［J］. Journal of Materials Processing Technology，2004，151(1-3): 33-38.

［12］李兵,王敏,张春,等. 模具摩擦及润滑条件对超高强钢板热冲压成形的影响
［J］.锻压技术，2018，43(5): 35-41.

Li B，Wang M，Zhang C，et al. Influence of friction and lubrication conditions in the die on hot stamping for ultra high strength steel sheet
［J］. Forging & Stamping Technology，2018，43(5):35-41.

［13］李富柱，翟长盼，李伟，等. 汽车车身构件冲压回弹研究现状
［J］. 锻压技术，2018,43(2):1-8.

Li F Z，Di C P，Li W，et al. Research on status of stamping springback for autobody parts
［J］. Forging & Stamping Technology，2018，43(2):1-8.

Service：

【This site has not yet opened Download Service】【Add Favorite】