锻压技术

热成形用硼钢热膨胀性能测试及应用

英文标题：Test and application of thermal expansion property for boron steel in thermoforming

单位：凌云工业股份有限公司

分类号：TG156.3

出版年,卷(期):页码：2020,45(6):200-203

摘要：

硼钢热冲压生产过程中投料的准确性和可靠性对生产效率有重要影响。采用自行研制的热膨胀实验装置，对B1500HS硼钢的热膨胀性能进行研究，使用Pamstamp模拟与实验相结合的方法获得B1500HS硼钢的热膨胀变化规律，准确预测B1500HS在加热膨胀后轮廓线的变化。结果表明：Pamstamp模拟的膨胀结果与实验结果非常接近，可以用于硼钢热膨胀模拟研究；板料膨胀后其纵向尺寸膨胀量大于宽度方向；板料内孔不仅形状发生改变，更为重要的是孔的中心位置产生较大变化。可以为板料定位装置的设计提供依据，提高生产过程中板料投放的准确性和工作效率，同时也能提高零件的制造精度与稳定性。

The accuracy and reliability of blank delivery have important influence on the production efficiency in the hot stamping production process of boron steel. Then, the thermal expansion property of B1500HS boron steel was studied by the self-developed thermal expansion experimental device, and the thermal expansion law of B1500HS boron steel was obtained by combining Pamstamp simulation with experiment to predict accurately the profile changes of B1500HS boron steel after thermal expansion. The results show that the expansion results of Pamstamp simulation are very close to the experimental results to study the thermal expansion simulation of boron steel, and the longitudinal expansion amount is larger than the width expansion after the expansion of sheet metal. Not only the shape of inner hole for sheet metal is changed, but also the central position of hole is changed greatly. Thus, the above research provides a basis for the design of blank positioning device and improves the accuracy and efficiency of blank delivery in the production process and the manufacturing accuracy and stability of parts.

基金项目：

国家科技重大专项（2018ZX04023-002）

安保芹（1967-），女，学士，高级工程师 E-mail：anbaoqin@lygf.com

参考文献：

［1］王铖. 热成形工艺参数对硼钢B1500HS微观组织及性能的影响
［D］. 济南：山东科技大学, 2017.

Wang C. Effect of Hot Forming Process Parameters on Microstructure and Properties of Boron Steel B1500HS
［D］. Jinan：Shandong University of Science and Technology, 2017.

［2］陈响军. 金属材料微观组织演变计算方法及在热成型中的应用
［D］.长沙：湖南大学, 2016.

Cheng X J. Calculation Method of Microstructure Evolution of Metal Materials and Its Application in Hot Forming
［D］. Changsha：Hunan University,2016.

［3］黄鸣东. 硼钢HC1500HS热冲压工艺与热力相变耦合建模仿真
［D］. 北京：北京科技大学, 2016.

Huang M D. Coupling Modeling and Simulation of Boron Steel HC1500HS Hot Stamping Process and Thermal Phase Change
［D］. Beijing：University of Science & Technology Beijing, 2016.

［4］曹龙飞. 金属材料的热膨胀特性研究
［D］. 武汉：武汉科技大学, 2013.

Cao L F. Research on Thermal Expansion Characteristics of Metal Materials
［D］. Wuhan：Wuhan University of Science and Technology,2013.

［5］Karunakaran V, Benabbas A, Sun Y, et al. Investigations of low-frequency vibrational dynamics and ligand binding kinetics of cystathionine β-synthase
［J］. The Journal of Physical Chemistry B, 2010, 114(9):3294-3306.

［6］Zhuk N A, Krzhizhanovskaya M G, Belyy V A, et al. The bismuth orthotantalate with high anisotropic thermal expansion
［J］. Scripta Materialia, 2019, 173:6-10.

［7］Daw J E, Rempe J L, Knudson D L, et al. Viability of Pushrod Dilatometry Techniques for High Temperature In-pile Measurements
［R］. Idaho Falls, United States：Idaho National Laboratory, 2008.

［8］Reilly J, Glisic B. Identifying time periods of minimal thermal gradient for temperature-driven structural health monitoring
［J］. Sensors, 2018, 18(3):1-21.

［9］Laptev A, Baufeld B, Swarnakar A K, et al. High temperature thermal expansion and elastic modulus of steels used in mill rolls
［J］. Journal of Materials Engineering and Performance, 2012, 21(2):271-279.

［10］苗恩铭. 精密零件热膨胀及材料精确热膨胀系数研究
［D］. 合肥：合肥工业大学, 2004.

Miao E M. Study on the Thermal Expansion of Precision Parts and the Accurate Thermal Expansion Coefficient of Materials
［D］. Hefei：Hefei University of Technology,2004.

［11］马治军，陈伟业，唐鼎，等. 汽车B柱零件热冲压软区模具模面优化设计
［J］.锻压技术,2019,44(4):138-144.

Ma Z J, Chen W Y, Tang D, et al. Optimization on die surface design of soft zone in hot stamping process for automobile B-pillar part
［J］. Forging & Stamping Technology, 2019, 44(4): 138-144.

［12］曹龙飞，徐光，邓鹏，等. 钢的热膨胀特性研究
［J］.北京科技大学学报, 2014, 36(5):639-643.

Cao L F, Xu G, Deng P, et al. Study on thermal expansion properties of steels
［J］. Journal of University of Science and Technology Beijing, 2014, 36(5): 639-643.

［13］苗恩铭. 材料热膨胀系数影响因素概述
［J］. 工具技术, 2005, 39（5）:26-29.

Miao E M. Applicability analysis and extension choice of using thermal expansion character parameter
［J］. Tool Engineering, 2005, 39（5）: 26-29.

［14］孟勇. 影响材料热膨胀系数的主要因素
［J］. 工业计量, 2005, 15（3）:6-9.

Meng Y. Research on major reasons affecting material thermal expansion coefficient
［J］. Industrial Measurement, 2005, 15（3）: 6-9.

服务与反馈：

【本网站尚未开通全文下载服务】【加入收藏】