锻压技术

基于GD&T的热成形零件公差对模具工艺方案的影响

英文标题：Influence of thermoforming part tolerance on die process scheme based on GD&T

作者：汤燕李彬徐刚志

单位：长安福特汽车有限公司

分类号：TG307

出版年,卷(期):页码：2022,47(10):111-117

摘要：

基于GD&T要求，以某车型A柱下端加强件为例，设计了不同边线公差要求下的热成形模具工艺方案，通过工艺方案的可行性分析，并对比不同工艺对应的全工序零件成本，阐述了产品设计对模具工艺的影响。结果表明: 在满足车身尺寸匹配的前提下，预开发工艺可有效降低工装开发成本，减少激光切割节拍，提高生产效率。热成形零件的金相组织及力学性能均满足设计标准，符合安全性法规要求。同时，通过同步工程对产品的生产工艺方案进行分析，在保证零件工艺性和性能均满足要求的情况下，反向推动产品设计端关于GD&T的选择，强调了同步工程在整车开发中的重要性。

Based on GD&T standards, for A-pillar lower end reinforcement part of an automotive, the process scheme of thermoforming die under different edge tolerance requirements was designed, and the influence of product design on the die process was expounded by the feasibility analysis of the process scheme and the cost comparison of the whole process parts corresponding to different processes. The results show that on the premise of matching the body sizes, the pre-development process can effectively reduce the tooling development cost, reduce the laser cutting cycle, and improve the production efficiency. The metallographic structure and the mechanical properties of thermoformed part meet the design standards and meet the requirements of safety regulations. At the same time, the production process scheme of product was analyzed by simultaneous engineering (SE), and under the condition that the manufacturability and performance of the parts were satisfied, the selection of GD&T on the product design was reversely promoted, and the importance of SE in the vehicle development was emphasized.

基金项目：

汤燕(1985-)，女，硕士，中级工程师,E-mail:ytang24@ford.com

参考文献：

[1]金学军，龚煜，韩先洪, 等.先进热成形汽车钢制造与使用的研究现状与展望[J].金属学报,2020,56(4):411-428.

Jin X J, Gong Y, Han X H, et al. A review of current state and prospect of the manufacturing and application of advanced Hot stamping automobile steels [J].Acta Metallurgica Sinica, 2020,56(4), 411-428.

[2]王三省，余海燕，陈梦.汽车B柱热成型技术的比较分析[J]. 塑性工程学报,2019,26(3):70-76.

Wang S S, Yu H Y, Chen M. Comparative analysis of hot stamping technologies for automotive B-pillar[J].Journal of Plasticity Engineering, 2019,26(3):70-76.

[3]张宜生, 王子健, 王梁. 高强度刚热冲压成形工艺及装备进展[J]. 塑性工程学报，2018，25(5):11-23.

Zhang Y S, Wang Z J, Wang L. Progress in hot stamping process and equipment for high strength steel sheet[J].Journal of Plasticity Engineering, 2018，25(5):11-23.

[4]金爱君, 孙风蔚, 陈杰龙, 等. 热成形钢板在汽车前横梁上的应用[J]. 吉林大学学报: 工学版，2011，41(s):104-107.

Jin A J, Sun F W, Chen J L, et al. Application of hot formed sheet steel to front cross member of vehicle [J].Journal of Jilin University: Engineering and Technology Edition,2011, 41(s):104-107.

[5]Aranda L G, Ravier P, Chastel Y, et al. Hot stamping of quenchable steels: Material data and process simulation [A]. Proceeding of the IDDRG 2003 Conf.[C]. Slovenia, 2003.

[6]熊雪英，王玉明，彭强. 宝钢先进成形制造成本模型和技术路线[J]. 塑性工程学报,2016,23（3）：103-107.

Xiong X Y, Wang Y M, Peng Q. Study on manufacturing cost model for advanced forming and technical route for Baosteel [J].Journal of Plasticity Engineering, 2016, 23(3):103-107.

[7]李军.乘用车轻量化及微合金化钢板的应用[M].北京：北京理工大学出版社，2015.

Li J. Lightweight of Passenger Car and Niobiummicroalloying Steel [M]. Beijing: Beijing Institute of Technology Press, 2015.

[8]Liu H P, Lu X W, Jin X J, et al. Enhanced mechanical properties of a hot stamped advanced high-strength steel treated by quenching and partitioning process[J]. Scripta Materialia, 2011, 64(8): 749-752.

[9]Ying C, Li G Z, Wang C Y, et al. Effect of quenching an partitioning with hot stamping on martensite transformation and mechanical properties of AHSS[J]. Journal of Materials Engineering and Performance, 2015, 24: 3194-3200.

[10]马宁，申国哲，张宗华, 等.高强度钢板热冲压材料性能研究及在车身设计中的应用[J].机械工程学报，2011,47(8):60-65.

Ma N, Shen G Z, Zhang Z H, et al. Material performance of hotforming high strength steel and its application in vehicle body[J]. Journal of Mechanical Engineering, 2011, 47(8):60-65.

[11]杨海根，赵征志，杨源华，等.1800 MPa级冷轧热成形钢的组织与性能[J].材料热处理学报，2017，38(7):120-125.

Yang H G, Zhao Z Z, Yang Y H, et al. Microstructure and properties of 1800 MPagrade coldrolled hot stamping steel [J].Transactions of Material and Heat Treatment, 2017, 38(7):120-125.

[12]马宁，胡平，闫康康，等. 高强度硼刚热成形技术研究及其应用[J].机械工程学报，2010,46(14):68-72.

Ma N, Hu P, Yan K K, et al. Research on boron steel for hot stamping and its application[J]. Journal of Mechanical Engineering, 2010, 46(14):68-72.

服务与反馈：

【本网站尚未开通全文下载服务】【加入收藏】