Transactions of Materials and Heat Treatment

Title：Metal flow analysis of aluminum tube lateral isothermal extrusion

Authors： WU Li-bo ZHU Qing XUE Yong ZHANG Zhi-min ZHANG Chun-yu

Unit： Handan Polytechnic College HBIS Group Core Company-Handan-Steel North University of China

KeyWords： aluminum alloy tube structural part with integrated ribs lateral isothermal extrusion metal flow

ClassificationCode：TG376

year,vol(issue):pagenumber：2013,38(4):50-53

Abstract：

Tail tube structural part is a very important part of the aircraft, using aluminum alloy isothermal forming instead of the traditional steel workpiece machining could effectively improve material utilization and reduce the production cost.By analyzing the shape feature, two steps forming method, the integrated ribs being anti-extrusion and the bulge being lateral extrusion was put forward. The lateral extrusion forming was key, and by numerical simulation, the flow direction, rate and equivalent strain changes of metal particle in the lateral extrusion were analyzed. The results show that when forming, the metal particle flow lines is clear and complete; metal flow velocity is uniform and structured; the rib equivalent strain can enhance the performance, and the strain in the tube wall is small without influence on the tube performance. Finally, the experiment is confirmed with the simulation results and the feasibility of the process is further demonstrated.

Funds：

国家自然科学基金资助项目(50735005；50605059)

吴立波（1980－），男，硕士，讲师

Reference：

［1］张春雨.铝合金筒体支架挤压成形技术研究[D].太原:中北大学，2012. Zhang C Y.Study on Forming of Extrusion for Aluminium Alloy Complex Cylinder Stents Technology[D].Taiyuan:North University of China，2012.
［2］王红宇，张宝红，张治民.某复杂外形铝合金筒体挤压成形工艺[J].热加工工艺，2011，40(5):128-129.Wang H Y, Zhang B H, Zhang Z M.Isothermal extrusion process for Al alloy special shaped cylinder[J].Hot Working Technology，2011，40(5):128-129.
［3］游和清，马勤.4A01铝合金活塞裙等温挤压工艺的研究[J].热加工工艺，2007，36 (5)：65-68.You H Q, Ma Q.Isothermal extrusion process of 4A11 alloy piston skirt[J].Hot Working Technology，2007，36 (5)：65-68.
［4］胡捷，郭青苗，李德富，等.大直径5A02铝合金薄壁管材生产工艺的研究[J].锻压技术，2011，36（1）：65-68.Hu J, Guo Q M, Li D F, et al. Research on production process of 5A02 aluminum alloy pipe with large diameter and thin-wall[J].Forging & Stamping Technology, 2011，36（1）：65-68.
［5］李落星，周佳，张辉.车身用铝、镁合金先进挤压成形技术及应用[J].机械工程学报，2012，48(18)：35-43. Li L X, Zhou J, Zhang H. Advanced extrusion technology and application of aluminium, magnesium alloy for vehicle body[J].Journal of Mechanical Engineering, 2012，(18)：35-43.
［6］康海鹏，左淼，李浩强，等.有限元模拟技术在主体锻造工艺设计中的应用[J].锻压技术，2012,37(1):28-31. Kang H P, Zuo M, Li H Q, et al. Application of finite element simulation in case forging technology design[J].Forging & Stamping Technology, 2012,37(1):28-31.
［7］郎利辉，蔡高参，刘康宁，等.铝合金典型件热介质成形工艺的数值模拟[J].锻压技术，2011，36（6）：129-132. Lang L H, Cai G S, Liu K N, et al. Numerical simulation analysis of warm hydroforming process for special aluminum-alloy part[J].Forging & Stamping Technology, 2011，36（6）：129-132.
［8］王德云.超硬铝LC4合金热处理工艺研究[J].兵器材料科学与工程，1991,(2)：42-46. Wang D Y.Superhard LC4 aluminum alloy heat treatment process[J].Ordnance Material Science and Engineering, 1991,(2)：42-46.
［9］王祝堂，田荣璋.铝合金及其加工手册[M].长沙：中南大学出版社，2000. Wang Z T, Tian R Z.Aluminum Alloy and Processing Manual[M].Changsha：Central South University Press, 2000.

Service：

【This site has not yet opened Download Service】【Add Favorite】