锻压技术

粘性介质性能及对不锈钢SUS304筒坯外压稳定性的影响

英文标题：Influence of viscous medium properties on tube-compression stability of

作者：高铁军刘洋陈鹏刘占军王忠金

分类号：

出版年,卷(期):页码：2015,40(1):17-20

摘要：

选用分子量范围为 (30～70)×104 g·mol-1的五种不同粘性介质进行室温条件下的流变特性和压缩性能试验，确定了不同分子量粘性介质的剪切粘度、剪应变率与剪应力关系和体积模量，在此基础上进行了不锈钢SUS304筒坯粘性介质外压稳定试验。研究结果表明，室温条件下，随着介质分子量的增加，粘性介质的粘度和速率敏感性增大，体积模量降低；选取分子量较大的粘性介质，有助于提高不锈钢SUS304筒坯的外压稳定性。

Experiments of rheological behavior and compression performance of five kinds of viscous medium with molecular weight of (30-70)×104 g·mol-1 at usual room temperature were carried out. Shear viscosity, relationship between shear strain rate and shear stress and bulk modulus with different kinds of viscous medium were obtained. On that basis, experiments of tube-compression stability of stainless steel SUS304 were conducted. The results show that with the increasing of molecular weight, viscosity and rate sensitivity of the viscous medium increase correspondingly at room temperature bulk modulus decreases. The viscous medium of large molecular weight is selected to improve its viscosity, rate sensitivity, bulk modulus, which is desirable for the stability of stainless steel SUS304.

基金项目：

国家自然科学基金资助项目 (51205260) ；辽宁省教育厅资助项目(L2012046)

高铁军 (1977-)，男，博士，副教授

参考文献：

［1］高铁军, 王忠金. 变径薄壁零件粘性介质外压缩径变形分析[J]. 锻压技术, 2009, 34(1): 16-19.

Gao T J, Wang Z J. Analysis of deformation in viscous medium outer pressure necking for thin-wall parts with variable diameter section[J]. Forming & Stamping Technology, 2009, 34(1): 16-19.

［2］Wang Z J, Gao T J. Inner and outer pressure forming of the nickel based super-alloy thin-walled part with variable diameter sections[J]. Trans. Nonferrous Met. Soc. China, 2008, 18(2): 87-92.

［3］高铁军, 刘占军, 王忠金. 筒坯端部条件对薄壁零件粘性介质外压缩径的影响[J]. 锻压技术, 2011, 36(1): 124-127.

Gao T J, Liu Z J, Wang Z J. Influences of conditions at tube-blank end on viscous medium outer pressure necking of thin-wall parts[J]. Forming & Stamping Technology, 2011, 36(1): 124-127.

［4］高铁军, 王忠金, 邓建懂. 缩径区长度对粘性介质外压缩径成形的影响[J]. 锻压技术, 2007, 32(5): 23-26.

Gao T J, Wang Z J, Deng J D. Influence of necking length on viscous medium outer pressure necking forming[J]. Forming & Stamping Technology, 2007, 32 (5): 23-26.

［5］刘建光, 王忠金, 高铁军. 板材粘性介质压力成形粘性附着力影响因素试验研究[J]. 机械工程学报, 2006, 42(10): 146-150.

Liu J G, Wang Z J, Gao T J. Experimental study on effect factors of viscous adhesive stress in viscous pressure forming[J]. Chinese Journal of Mechanical Engineering, 2006, 42(10): 146-150.

［6］刘建光, 王忠金, 刘岩. VPF用粘性介质粘弹塑性本构模型及参数确定[J]. 材料科学与工艺, 2010, 18(6): 843-846.

Liu J G, Wang Z J, Liu Y. Visco-elastoplastic constitutive model for viscous medium used in VPF and its parameters determination[J]. Materials Science & Technology, 2010, 18(6): 843-846.

［7］刘岩, 王忠金, 宋辉,等. VPF粘性介质粘弹性本构关系研究[J]. 材料科学与工艺, 2008, 16(2): 176-183.

Liu Y, Wang Z J, Song H, et al. Study on viscouelastic constitutive relationship of viscous medium used in viscous pressure forming[J]. Materials Science & Technology, 2008, 16(2): 176-183.

［8］王忠金, 王仲仁. 板料粘性介质胀形过程应变速率变化的模拟研究[J]. 塑性工程学报, 1999, 6(3): 46-48.

Wang Z J, Wang Z R. Analysis of strain rate variations during viscous pressure bulging of sheet metal[J]. Journal of Plasticity Engineering, 1999, 6(3): 46-48.

［9］崔英伟, 孙坤, 刘振兴. 油液体积弹性模量的测量[J]. 液压气动与密封, 2012,(3): 17-19.

Cui Y W, Sun K Liu Z X. The measurement of volume elastic modulus of hydraulic oil[J]. Hydraulics Pneumatics & Seals, 2012, (3): 17-19.

［10］陈超, 龚国芳, 杨华勇,等. 液压油体积弹性模量综合测试实验台的设计及研究[J]. 液压与气动, 2008, (11): 21-24.

Chen C, Gong G F, Yang H Y, et al. Study and Design of integrated test rig for hydraulic oil bulk modulus[J]. Chinese Hydraulics & Pneumatics, 2008, (11): 21-24.

服务与反馈：

【文章下载】【加入收藏】