Transactions of Materials and Heat Treatment

Title：Analysis on the tearing principle between layers of the cold rolled bi-metal composite pipe

Authors： Kong Chenmei Liao Hongyi

Unit： Guilin University of Electronic Technology

KeyWords： cold rolling bi-metal composite pipe interlayer tearing defects shearing strength thickness reduction

ClassificationCode：TG335.71；TG335.85

year,vol(issue):pagenumber：2016,41(10):142-148

Abstract：

For the problem of interlayer tearing defects existed in the cold rolling process of bi-metal composite pipe, the mechanism of defects were analyzed theoretically, and it was found that when shear stress value in combined with the interface was greater than the interface bonding strength in the process of cold rolling, interlayer tearing defects appeared. Then, the calculation formula of shearing force at interface between layers were deduced and given by the calculation of axial stress difference of inside and outside layer tube. For 304L/20G, theoretical calculation was carried out, and the rolling process of inside and outside pipes was simulated numerically by ABAQUS software. Furthermore, the stress of shearing was achieved and the calculation results, theoretical results and actual production were basically the same. Thus, the calculation method of interface shear stress was feasible. At last, improved processes to avoid defect were given based on analyzing the measures.

Funds：

邯郸市科学研究与开发项目（1521102055）

孔陈梅（1990-），女，硕士研究生 E-mail：chenmkong@163.com

Reference：

[1]郝斌，段先进，崔华，等. 金属基复合材料的发展发展现状及展望[J]. 材料导报，2005，19(7):64-68.

Hao B,Duan X J,Cui H，et al. Present status and expectation of metal matrix composite [J]. Materials Review,2005，19(7):64-68.

[2]王黎晖，高杰. 双金属复合无缝管的生产工艺综述[N]. 世界金属导报，2014-08-05(B12).

Wang L H,Gao J. Bimetallic Seamless Pipe Production Technology were Reviewed[N]. The Metal Guides,2014-08-05 (B12).

[3]ASTM A264, Standard specification for stainless chromium-nickel steel-clad plate [S].

[4]鲍岩. 双金属无缝钢管轧制成形过程的研究[D].天津：天津理工大学，2014.

Bao Y. The Study on the Rolling Process of Bimetallic Seamless Steel Tube[D]. Tianjin: Tianjin University of Technology,2014.

[5]张春强. 冶金复合双金属管界面力学性能研究[D].邯郸：河北工程大学，2012.

Zhang C Q. Study on the Interface Mechanical Properties of Metallurgical Composite Bimetallic Tube[D]. Handan: Hebei University of Engineering,2012.

[6]马怀宪. 金属塑性加工学：挤压、拉拔与管材冷轧[M].北京：冶金工业出版社，1991.

Ma H X. Metal and Plastic Processing: Extrusion,Drawing and Pipe Rolling[M]. Beijing: Metallurgical Industry Press,1991.

[7]鲍岩，叶金铎，张春秋，等. 无缝钢管冷轧成形过程的数值模拟[J]. 天津理工大学学报，2013，29(6): 6-11.

Bao Y,Ye J Y,Zhang C Q,et al. Numerical Simulation of Seamless Steel Tube Under Cold Rolling[J]. Journal of Tianjin Polytechnic University,2013，29(6): 6-11.

[8]薛守义. 弹塑性力学[M]. 北京：中国建材工业出版社，2005.

Xue S Y. Elastic-Plastic Mechanics[M]. Beijing: China Building Industry Press,2005.

[9]楚志兵. 皮尔格冷轧不锈钢管回弹预测模型的建立与验证[J].四川大学学报，2015，47(2):165-171.

Chu Z B. Establishment and verification of pilger mill cold rolled stainless steel tube springback prediction model[J]. Journal of Sichuan University,2015，47(2): 165-171.

[10]赵腾伦，姚新军. ABAQUS 6.6在机械工程中的应用[M].北京：中国水利水电出版社，2007.

Zhao T L,Yao X J. The Application of ABAQUS 6.6 in Mechanical Engineering [M]. Beijing: China Water & Power Press,2007.

[11]王光艳，梅益，陈浪，等. 42CrMo环件轧制成形的数值模拟与分析[J].锻压技术，2014，39(5):82-86.

Wang G Y,Mei Y,Chen L,et al. Numerical simulation and analysis of rolling forming of 42CrMo rings[J]. Forging & Stamping Technology,2014，39(5): 82-86.

[12]石亦平，周玉蓉. ABAQUS有限元分析实例详解[M].北京：机械工业出版社，2006.

Shi Y P,Zhou Y R. Using ABAQUS Finite Element Analysis of Example Explanation [M]. Beijing: China Machine Press,2006.

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