锻压技术

梨形六通件的旋压复合成形工艺

英文标题：Spinning compound forming process for pear-shaped six-way part

分类号：V462

出版年,卷(期):页码：2020,45(11):94-100

摘要：

针对5A06铝合金梨形六通件的结构特点，提出多道次旋压复合成形的试验方案，并设计了旋压及翻孔工装，采用“筒形件旋压+反锥渐进旋压+收口旋压+翻孔成形”工艺，实现了零件的整体成形。为满足零件壁厚最小的要求，筒形件旋压采用“普旋+强旋”相结合的方式，收口采用往返程交替旋压方式，并研究分析了热处理及旋压温度对成形的影响。在旋压过程中，零件容易产生纵向、横向裂纹及边缘波纹，这些缺陷与旋压温度、退火道次有很大关系。试验表明：旋压温度为300~320 ℃时，设置两次去应力退火后，翻孔后零件的最大减薄量达到最低的48.3%，同时消除了起皱、开裂等缺陷，零件的成形效果较好。

For the structure characteristic of pear-shaped six-way part for 5A06 aluminum alloy, a test plan for multi-pass spinning compound forming was proposed, and the spinning and hole flanging tools were designed. Then, the process of ‘spinning of cylindrical part + progressive spinning of reverse cone + closing spinning + hole flanging’ was adopted to realize the integral forming of part. In order to meet the minimum wall thickness requirement of part, the combination of conventional and power spinning was adopted in the spinning of cylindrical part, the back and forth alternate spinning was adopted in closing, and the influences of heat treatment and spinning temperature on the forming were studied and analyzed. In addition, in the spinning process, the parts were prone to longitudinal and transverse cracks and edge wrinkle, which were closely related to the spinning temperature and times of annealing. The results show that when the spinning temperature reaches 300-320 ℃, after two times of stress relief annealing, the maximum thinning of part after hole flanging reaches the lowest which is 48.3%, and the whole forming effect is good without wrinkle, crack and other defects.

基金项目：

中国航天科技集团有限公司第八研究院工艺技术研究项目（718-MY-01）

冯苏乐（1987-），男，硕士，高级工程师 E-mail：fengsuleshikeke@sina.com

参考文献：

[1]赵云豪，李彦利.旋压技术与应用[M].北京：机械工业出版社，2008.

Zhao Y H，Li Y L.Spinning Technology and Application[M]. Beijing：China Machine Press，2008.

[2]Music O，Allood J M，Kawai K. A review of the mechanics of metal spinning [J]. Journal of Materials Processing Technology，2010，210(1)：3-23.

[3]冯苏乐，徐永超，赵淘，等. 液压复合成形技术在三通件上的应用[J].锻压技术，2018, 43(1)：72-76.

Feng S L，Xu Y C，Zhao T，et al.Application of hydraulic compound forming technology for tee part[J]. Forging & Stamping Technology，2018, 43(1)：72-76.

[4]侯令华，李新和，俞大辉，等. 薄壁曲面构件旋压成形工艺[J].锻压技术，2018,43(11):59-65.

Hou L H，Li X H，Yu D H，et al. Spinning process for thin-walled spherical part [J]. Forging & Stamping Technology，2018, 43(11):59-65.

[5]夏琴香，吴竞飞，程秀全，等.旋轮结构对高强钢筒形件流动旋压成形影响规律研究[J].模具技术，2017，（2）：1-5.

Xia Q X，Wu J F，Cheng X Q，et al. Research on the influence of roller structure on forming quality of high-strength steel during flow spinning forming[J].Die and Mould Technology，2017,（2）:1-5.

[6]李亚非，陈辉.一种曲面薄壁异形件可旋性试验研究[J].现代制造工程，2005，(6)：55-57.

Li Y F，Chen H.Feasibility research of spinning on circumgyrate sheet abnormity metal[J]. Modern Manufacturing Engineering，2005，(6): 55-57.

[7]王东坡，马世成，孙昂，等.基于剪普复合旋压方法的双轮同步旋压技术[J] .宇航材料工艺，2015,(4)：23-30.

Wang D P，Ma S C，Sun A，et al.Processing technology of double-roller mirror spinning based on conventional-shear composite spinning [J].Aerospace Materials & Technology，2015,(4)：23-30.

[8]石珣，李言，杨明顺，等. 金属波纹管内旋压增量成形过程材料变形特性研究[J].锻压技术，2018,43(2):55-61.

Shi X，Li Y，Yang M S，et al. Investigation on deformation characteristics of internal spinning incremental forming process for metal corrugated tubes [J]. Forging & Stamping Technology，2018,43(2):55-61.

[9]谷岩波，王辉，王会廷，等. AA5754铝合金板材渐进成形壁厚均匀性研究[J].锻压技术，2018,43(1):33-41.

Gu Y B，Wang H，Wang H T，et al. Study on wall thickness uniformity in incremental forming for aluminum alloy AA5754 sheet [J]. Forging & Stamping Technology，2018,43(1):33-41.

[10]詹梅，李甜，王巧玲，等.热剪切旋压过程中芯模对零件形貌和壁厚分布的影响[J].西北工业大学学报，2013, 31(3)：491-497.

Zhan M，Li T，Wang Q L，et al.Effects of mandrel on hot shear spinning of titanium alloy[J]. Journal of Northwestern Polytechnical University，2013, 31(3)：491-497.

[11]杨文华，廖哲，郝花蕾，等. 3A21铝合金锥形件旋压成形工艺 [J].锻压技术，2019,44(10):88-93.

Yang W H，Liao Z，Hao H L，et al. Spinning forming process of 3A21 aluminum alloy conical parts [J]. Forging & Stamping Technology，2019,44(10):88-93.

[12]夏琴香.特种旋压成形技术[M].北京：科学出版社，2017.

Xia Q X. Special Spinning Technology[M]. Beijing：Science Press，2017.

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