为研究淬火加热温度、保温时间及冷却水流速等热冲压工艺参数对热冲压零件力学性能及微观组织的影响规律,通过在不同工艺参数条件下进行弯曲件热冲压工艺试验,测量弯曲件的力学性能并观察其金相组织.结果表明,在所设计的模具上可实现高强硼钢热成形零件的有效淬火,热冲压弯曲件的抗拉强度可达到1500 MPa以上,主要形成均匀细小的马氏体组织.确定了热冲压工艺参数的选择范围.
参考文献
| [1] | 王洪俊,范海雁.轿车车身零件制造中的热成形技术[J].模具制造,2005(04):32-34. |
| [2] | R. Neugebauer;T. Altan;M. Geiger;M. Kleiner;A. Sterzing .Sheet Metal Forming at Elevated Temperatures[J].CIRP Annals,2006(2):793-816. |
| [3] | 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. |
| [4] | 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. |
| [5] | HOFFMANN H;SO H;STEINBEISS H .Design of hot stamping tools with cooling system[J].Annals of the CIRP,2007,56(01):269-272. |
| [6] | KOLLECK R;PFANNER S .Development of cooled tools for press hardening of boron steel sheet[J].Key Engineering Materials,2007,344:225-232. |
| [7] | 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. |
| [8] | RAVIER Pascal;ARANDA Lucia Garcia;CHASTEL Yvan .Hot stamping experiment and numerical simulation of pre-coated USIBOR1500 quenchable steels,SAE,2003-01-0859[R].Tokyo:Society of Automotive Engineers of Japan,2003. |
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%