通过热成形高温平板分区冷却系列试验,以淬火前后热成形材料力学性能为评价指标,结合正交试验分析方法研究了热成形工艺条件下保压时间、压强和板料厚度对热成形零件硬度强度的影响规律.采用统计学“3σ法则”对优化工艺下热成形零件力学性能进行分析,建立了基于柔性指数模型的热成形钢板强度硬度非线性回归方程和热成形钢板强度-硬度等级评估区间图.并基于优化条件下的U型热冲压实验验证了该模型的正确性.结果表明:建立的性能评价标准可为热成形零件的力学性能预测和在线质量检测控制提供重要指导依据.
参考文献
[1] | H. Karbasian;A. E. Tekkaya .A review on hot stamping[J].Journal of Materials Processing Technology,2010(15):2103-2118. |
[2] | Malek Naderi,Mostafa Ketabchi,Mahmoud Abbasi,Wolfgang Bleck.Semi-hot Stamping as an Improved Process of Hot Stamping[J].材料科学技术学报(英文版),2011(04):369-376. |
[3] | 马宁,胡平,郭威.热成形硼钢热、力及相变耦合关系[J].材料热处理学报,2010(11):33-36,41. |
[4] | A. Turetta;S. Braschi;A. Ghiotti .Investigation of 22MnB5 formability in hot stamping operations[J].Journal of Materials Processing Technology,2006(1/3):396-400. |
[5] | M. Merklein;J. Lechler .Investigation of the thermo-mechanical properties of hot stamping steels[J].Journal of Materials Processing Technology,2006(1/3):452-455. |
[6] | 彭雯雯,曾卫东,康超,贾志强.热处理工艺对300M超高强度钢组织和性能的影响[J].材料热处理学报,2012(03):94-98. |
[7] | Yang J;Shen H S .Dynamic response of initially stressed functionally graded rectangular thin plates[J].Computers & Structures,2001,54(04):497-508. |
[8] | R. Neugebauer;F. Schieck;A. Rautenstrauch;M. Bach .Hot sheet metal forming: The formulation of graded component characteristics based on strategic temperature management for tool-based and incremental forming operations[J].CIRP Journal of Manufacturing Science and Technology,2011(2):180-188. |
[9] | 申国哲,李效文,盈亮,史栋勇,郭润清,孟召焕.基于硬度梯度的热成形高强钢弯曲性能研究[J].农业机械学报,2013(02):261-266. |
[10] | 桂中祥,张宜生,王子健.汽车超高强钢热冲压成形新工艺--选择性冷却[J].热加工工艺,2013(01):108-113. |
[11] | 马宁,胡平,闫康康,郭威,孟祥兵,翟述基.高强度硼钢热成形技术研究及其应用[J].机械工程学报,2010(14):68-72. |
[12] | Merklein M;Lechler J;Geiger M .Characterization of the flow properties of the quenchenable ultra high strength steel 22MnB5[J].The CIRP Annals-Manufacturing Technology,2006,55(01):229-232. |
[13] | Eriksson M.;Oldenburg M.;Somani MC.;Karjalainen LP. .Testing and evaluation of material data for analysis of forming and hardening of boron steel components[J].Modelling and simulation in materials science and engineering,2002(3):277-294. |
[14] | 姜超,单忠德,庄百亮,戎文娟,张密兰.热冲压成形22MnB5钢板的组织和性能[J].材料热处理学报,2012(03):78-81. |
[15] | 叶慈南;刘锡平.概率论与数理统计[M].北京:科学出版社,2009 |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%