锻压技术

热锻模具自动化电弧增材再制造工艺

英文标题：Automatic wire arc additive remanufacturing process for hot forging mold

作者：张建生肖贵乾邓长勇

单位：重庆大学

分类号：

出版年,卷(期):页码：2020,45(7):165-171

摘要：

为解决采用人工堆焊修复曲轴锻模时，精确尺寸难以控制、加工余量大造成的焊材浪费和热锻模具组织性能的稳定性差等问题，提出了采用自动化电弧增材再制造技术代替传统的人工堆焊，充分发挥了失效热锻模具作为再制造基体的低成本优势和自动化电弧增材再制造的精确性优势。首先，制定了曲轴锻模自动化电弧增材再制造的流程，进而对待修复曲轴锻模进行了三坐标扫描及后续模型处理，获得了电弧增材填充部分的目标模型，并在自主研发的路径规划软件中进行了逐层的填充轨迹规划;然后,将填充轨迹转换为机器人指令文件;最后,对失效的曲轴锻模进行了电弧增材再制造试验，验证了整套方案的可行性。

In order to solve the problems of exact dimension difficult to control, welding material waste caused by large machining allowance, poor structure and property stability of hot forging mold and so on when the crankshaft forging mold was repaired by manual welding, the automatic wire arc additive remanufacturing technology was put forward replacing the traditional manual welding, and the low-cost advantage of a failed hot forging mold as a remanufacturing matrix and the precision advantage of automatic wire arc additive remanufacturing were fully realized. First, the process of automatic wire arc additive remanufacturing for the crankshaft forging mold was formulated, and the target model of wire arc additive filling part was obtained by the three-axis scanning and subsequent model processing of crankshaft forging mold to be repaired. Then, the layer-by-layer filling path planning was generated in self-developed path planning software, and the filling path was converted into a robot command file. Finally, the automatic wire arc additive remanufacturing test was performed on the failed crankshaft forging mold to verify the feasibility of the whole scheme.

基金项目：

国家重点研发计划项目(2018YFB1106504）；重庆市技术创新与应用示范专项重点项目(cstc2018jszxcyzdX0121)

张建生(1990-),男,博士,中级工程师 E-mail：zhangjiansheng@cqu.edu.cn

参考文献：

[1]李静生, 李洋, 赵菲. 模具设计的发展与改革[J]. 科技经济导刊, 2018, 28:80-81.

Li J S, Li Y, Zhao F. Development and reform of die designing[J]. Technology and Economic Guide, 2018, 28:80-81.

[2]林建平. “工业4.0”下的模具智能化发展趋势[J].模具工业, 2016,42(5):1-4.

Lin J P. Development trend of die & mould intelligentize under “Industry 4.0” [J]. Die & Mould Industry, 2016,42(5):1-4.

[3]李大鑫, 张秀棉. 模具技术现状与发展趋势综述[J].模具制造, 2005, 5(2):1-4.

Li D X, Zhang X M. Review of status and development trend in die & mold manufacture [J]. Die & Mold Manufacture, 2005, 5(2):1-4.

[4]赵震, 白雪娇, 胡成亮. 精密锻造技术的现状与发展趋势[J]. 锻压技术, 2018, 43(7):90-95.

Zhao Z, Bai X J, Hu C L. Status and development trend of precision forging technology[J]. Forging & Stamping Technology, 2018, 43(7):90-95.

[5]Shen L, Zhou J, Ma X, et al. Microstructure and mechanical properties of hot forging die manufactured by bimetallayer surfacing technology[J]. Journal of Materials Processing Technology, 2017, 239: 147-159.

[6]卢顺, 周杰, 李梦瑶. 双金属层堆焊法制备铸钢基体大型锻模[J]. 热加工工艺, 2014, 43(13):95-98.

Lu S, Zhou J, Li M Y. Large forging die manufactured with dual hardfacing metal layer on cast steel matrix[J]. Hot Working Technology, 2014, 43(13):95-98.

[7]Zhang J S, Zhou J, Gao F. Bimetalgradientlayer surfacing of forging die manufacturing based on caststeel substrate[A]. The 4th International Conference on New Forming Technology[C]. UK: 2015.

[8]Starly B, Lau A, Sun W, et al. Direct slicing of STEP based NURBS models for layered manufacturing[J]. Computeraided Design, 2005, 4:387-397.

[9]Cao W, Miyamoto Y. Direct slicing from AutoCAD solid models for rapid prototyping[J]. International Journal of Advanced Manufacturing Technology, 2003, 21:739-742.

[10]夏巨谌，邓磊，金俊松，等. 我国精锻技术的现状及发展趋势[J].锻压技术, 2019, 45（6）:16-29.

Xia J C, Deng L, Jin J S, et al. Current situation and development trend of precision forging technology in China[J]. Forging & Stamping Technology, 2019, 45（6）:16-29.

[11]刘元伟，沈辉，张露，等. 汽车前轴辊锻模的表面堆焊再制造技术[J]. 锻压装备与制造技术, 2016, 50(2):113-116.

Liu Y W, Shen H, Zhang L, et al. Surface welding technology for reparation and refabrication of roll forging die for the automobile front axle[J]. China Metal Forming Equipment & Manufacturing Technology, 2016, 50(2):113-116.

[12]丁蓉蓉, 周杰, 李鑫，等. 某航空钛合金锻件用锻模夹心层梯度制造方法研究[A].第十五届全国塑性工程学会年会[C]. 北京：2017.

Ding R R, Zhou J, Li X, et al. Research on thickness of the gradient layer on forging die for aviation forgings based on numerical simulation[A]. The 15th Annual Conference of Plasticity Engineering[C]. Beijing: 2017.

[13]李鹏川. 800 MN液压机飞机起落架锻模再制造[J].兵器装备工程学报, 2018, 39(3):151-156.

Li P C. Research of remanufacturing of aircraft landing gear die with 800 MN hydraulic press[J]. Journal of Ordnance Equipment Engineering, 2018, 39(3):151-156.

服务与反馈：

【本网站尚未开通全文下载服务】【加入收藏】