Transactions of Materials and Heat Treatment

Title：Design on forging mold and production verification of forging process for automobile steering knuckle with long rod based on Deform 3D

Authors： Liu Jiang Xu Hao

Unit： Chongqing Vocational Institute of Engineering University of Science and Technology of China Chongqing Dongke Mould Manufacturing Co. Ltd. Chongqing University

KeyWords： forgings with long rod steering knuckle bending mold pre-forging mold final forging mold

ClassificationCode：TG315.2

year,vol(issue):pagenumber：2021,46(2):9-13

Abstract：

For the structural characteristics of SG steering knuckle with complex shape and large change in forging section, as well as the forging defects such as collapse, lack of material and folding in actual forging production, the finite element model of SG steering knuckle was established by finite element software Deform 3D, the bending, pre-forging and final forging molds were constructed, and the metal flow processes of pre-forgings and final forgings were analyzed. Then, the three processes of bending, pre-forging and final forging for SG steering knuckle were tested on-site production to verify the correctness of mold design and process scheme and the accuracy of numerical simulation results, and it was concluded that the steering knuckle with long rod should be produced by roll forging blank-making and bending process, and combining with compound forming process of die forging. In the test, the material utilization rate of SG steering knuckle forgings is up to 80.8%, the pass rate is up to 97.9%, and the life of a single mold is extended to produce 900 pieces.

Funds：

重庆市教委科学技术研究计划资助项目（KJQN202003406）

刘江（1982-），女，硕士，工程师，E-mail：379280626@163.com；通讯作者：徐皓（1979-），男，硕士，教授,正高级工程师，E-mail：xuhaolj@mail.ustc.edu.cn

Reference：

[1]徐皓，刘铭，刘江. 基于Deform的依维柯汽车转向节的预锻优化 [J]. 锻压技术，2020,45(1):30-34.
Xu H，Liu M，Liu J. Pre-forging optimization on steering knuckle for IVEVO automobile based on Deform [J]. Forging & Stamping Technology，2020,45(1):30-34.
[2]刘雅辉，刘淑梅，何文涛，等. 阻力墙设计对转向节模锻成形工艺的影响[J]. 塑性工程学报，2015，22 (3) : 44-48.
Liu Y H，Liu S M，He W T，et al. Effect of resistance wall design on the drop forging for steering knuckle[J]. Journal of Plasticity Engineering，2015，22(3):44-48.
[3]赵一平，张如华，蒋鹏，等. 汽车典型锻件生产[M]. 北京：国防工业出版社，2009.
Zhao Y P，Zhang R H，Jiang P,et al. Production for Typical Automotive Forgings [M].Beijing: National Defense Industry press, 2009.
[4]GB/T 12362—2016, 钢质模锻件公差及机械加工余量[S].
GB/T 12362—2016, Steel die forgings—Tolerance and machining allowance [S].
[5]GB/T 3077—2015, 合金结构钢[S].
GB/T 3077—2015, Alloy structure steels[S].
[6]中国机械工程学会塑性工程学会. 锻压手册[M].北京：机械工业出版社，2013.
China Society for Technology of Plasticity,CMES. Forging Manual [M]. Beijing: China Machine Press，2013.
[7]王以华, 吕景林, 姜剑敏,等. 锻模设计技术及实例[M]. 北京:机械工业出版社, 2009.
Wang Y H, Lyu J L, Jiang J M, et al. Design Technology and Examples of Forging Die[M]. Beijing: China Machine Press, 2009.
[8]吕炎.锻模设计手册[M].北京:机械工业出版社, 2006.
Lyu Y. Design Manual of Forgign Die [M]. Beijing: China Machine Press, 2006.
[9]吕炎.锻造工艺学[M].北京:机械工业出版社, 1995.
Lyu Y. Forging Technology [M]. Beijing: China Machine Press, 1995.
[10]詹辉，苟建华. 高档客车转向节锻件模锻工艺开发[J].金属加工：热加工，2004，（12）：17-19.
Zhan H, Gou J H. Development of die forging technology for high-grade steering knuckle forgings for passenger cars [J]. MW Metal Working，2004，（12）：17-19.
[11]徐皓，刘江. CH1018 转向节锤锻模具优化设计实例[J].锻压技术，2020,45(8)：179-183.
Xu H，Liu J. Example of optimal design on hammer forging mold of steering knuckle CH1018[J]. Forging & Stamping Technology，2020,45(8):179-183.
[12]徐皓，刘江. 余热淬火循环泵数量对锻造转向节内部组织的影响[J]. 锻压技术，2020,45(2):194-197.
Xu H，Liu J. Influence of quantity of residual heat quenching circulating pump on internal organization for forging steering knuckle [J]. Forging & Stamping Technology，2020,45(2): 194-197.
[13]张莉，李升军.DEFORM 在金属塑性成形中的应用[M].北京：机械工业出版社，2009.
Zhang L, Li S J. Application in Metal Plastic Forming of DEFORM[M].Beijing: China Machine Press, 2009.
[14]周朝辉，曹海桥，吉卫，等. DEFORM 有限元分析系统软件及其应用[J].热加工工艺，2003，32（4）：51-52.
Zhou Z H, Cao H Q, Ji W, et al. Application of DEFORM limited liability analysis system software [J]. Hot Working Technology. 2003,32（4）：51-52.
[15]苟建华. 汽车884N转向节模锻工艺开发[J]. 金属加工：热加工，2004，（7）：66-67.
Gou J H. Automobile 884N steering knuckle die forging process development [J].MW Metal Working，2004，（7）：66-67.
[16]何文涛. 汽车转向节热锻成形数值模拟及模具优化[D]. 上海：上海工程技术大学，2016.
He W T. The Numerical Simulation of Hot Forging and Die Optimization for Automobile Steering Knuckle[D]. Shanghai: Shanghai University of Engineering Science，2016.

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