Transactions of Materials and Heat Treatment

Title：Integral stamping process on wrench-shaped beam parts

Authors： Sun Li Zhou Hailong Huang Guanxin Zhang Yaqi Liu Junfeng Dai Wei

Unit： Baotou Vocational and Technical College Dongfeng Motor Corporation

KeyWords： wrench-shaped beam parts stamping closed flanging demolded opposite flanging hole coaxiality

ClassificationCode：TG386.1

year,vol(issue):pagenumber：2020,45(9):69-74

Abstract：

For the problems that after the wrench-shaped beam part was closed and flanged, the mold cannot be demolded, and the coaxiality of opposite flanging hole was difficult to guarantee, a method of integral stamping for the wrench-shaped beam parts was proposed. Firstly, the traditional punch structure was improved, the supporting structure of the closed flanging punch was cancelled, and according to conformal flow of sheet metal and limit of fillet for punch, the closed flanging was realized to ensure the punch and die to demold smoothly. Secondly, the coaxiality of opposite flanging hole was guaranteed by the pre-flanging hole of the former process and the rectify flanging hole of the latter process. Furthermore, the integral forming process of this kind of beam parts was analyzed by Dynaform. Finally, the mentioned method was verified by trial production. The results show that the smooth demolding of punch and die is achieved by eliminating part of the supporting structure for closed flanging, and the coaxiality of flanging hole is improved up to Φ0.3 mm by pre-flanging hole and shaping.

Funds：

国家自然科学基金资助项目（61374196，51178053）；教育部长江学者和创新团队发展计划项目(IRT1286)

孙丽(1985-)，女，硕士，讲师，高级技师 E-mail：466298302@qq.com 通讯作者：张亚岐（1986-），男，硕士，高级工程师 E-mail：zyq211985@163.com

Reference：

［1］史东杰，王连波，刘对宾，等.汽车底盘轻量化材料和工艺
［J］.热加工工艺，2016，45（3）：16-18.

Shi D J，Wang L B，Liu D B，et al. Materials and technology of automobile chassis lightweight
［J］. Hot Working Technology，2016，45（3）：16-18.

［2］陈川川，苏小平，符继麟.铝合金转向节低压铸造数值模拟与工艺优化
［J］.热加工工艺，2020，49（1）：61-64.

Chen C C，Su X P，Fu J L.Numerical simulation and process optimization of low pressure casting of aluminum alloy steering knuckle
［J］.Hot Working Technology，2020，49（1）：61-64.

［3］刘同，许希武，林智育. 复合材料厚板多钉连接
［J］.材料科学与工程学报，2019，37（5）：768-778.

Liu T，Xu X W，Li Z Y.Research on multi-bolt composite laminate joint strength
［J］. Journal of Materials Science and Engineering，2019，37（5）：768-778.

［4］王光，李双一，魏元生.不等厚板在车顶横梁上的应用
［J］.汽车零部件，2017，（3）：33-36.

Wang G，Li S Y，Wei Y S. Application of tailor rolled blanks on roof cross beam
［J］. Automobile Parts，2017，（3）：33-36.

［5］寇全真，张会林.发动机盖包边模具结构设计
［J］.锻造与冲压，2017，（16）：67-68.

Kou Q Z，Zhang H L.Structure design of the engine cover hemming die
［J］.Forging & Metalforming, 2017，（16）：67-68.

［6］曾渝，王颖婧，张晓蕾，等. 6016铝板性能解析及挽救工艺研究
［J］.汽车工艺与材料，2018，（8）：1-5.

Zeng Y，Wang Y J，Zhang X L，et al.Analysis of properties of 6016 aluminum plate and Research on rescue process
［J］. Automobile Technology & Material,2018，（8）：1-5.

［7］刘永银.某车型发盖水滴造型包边模具结构设计
［J］.锻压装备与制造技术，2019，54(4):94-97.

Liu Y Y.Structural design of a water droplet shape edging die for some model of automobile engine cover
［J］. China Metalforming Equipment & Manufacturing Technology，2019，54(4):94-97.

［8］张华伟，胡平，刘立忠，等. 影响轧制差厚板冲压成形性能的几何参数研究
［J］.机械设计与制造，2012，（4）:7-9.

Zhang H W，Hu P，Liu L Z，et al.Research on geometric parameters affecting stamping formability of tailor rolled blank
［J］. Machinery Design & Manufacture，2012，（4）:7-9.

［9］窦寒玙，韩英平，李彦磊，等.厚板料高强度与高精度的冲压件的模具设计
［J］.模具工业，2019，45（4）：18-22.

Dou H Y，Han Y P，Li Y L，et al. Design of high strength and high precision stamping die parts for thick plate
［J］. Die Mould Industry,2019，45（4）：18-22.

［10］艾小玲，张祥林，欧阳德祥. 汽车底盘高强度厚板冲孔及镦倒角凸模的损坏分析
［J］.湖南科技大学学报:自然科学版，2014，（4）：44-47.

Ai X L,Zhang X L,Ouyang D X. Study of the punching and upsetting angle processes of high intensity of planks for automobile chassis andimprovement measures of the failure punch
［J］.Journal of Hunan University of Science & Technology：Natural Science Edition，2014，（4）：44-47.

［11］胡晓，刁可山，李雷. Dynaform与Autoform在铝板冲压成形模拟中的比较
［J］.塑性工程学报，2017，24（3）：31-35.

Hu X，Diao K S，Li L. Comparison of Dynaform with Autoform in the simulation of aluminum sheet stamping
［J］. Journal of Plasticity Engineering，2017，24（3）：31-35.

［12］张勇，张杰，万景元，等. 基于Dynaform的异形零件成形分析
［J］.机械制造，2017，55（11）：55-57.

Zhang Y，Zhang J，Wan J Y，et al. Forming analysis of special-shaped parts based on Dynaform
［J］. Machinery，2017，55（11）：55-57.

［13］杨文华，吉卫，吴刚，等. 基于Dynaform的浅球壳冲压成形及回弹研究
［J］.锻压技术，2018，43（9）：41-46.

Yang W H，Ji W，Wu G，et al. Stamping forming and springback of shallow spherical shell based on Dynaform
［J］. Forging & Stamping Technology，2018，43（9）：41-46.

Service：

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