锻压技术

模具加载方式对传动用螺旋伞齿轮闭式锻造工艺的影响

英文标题：Influence of mold loading mode on closed forging process for transmission spiral bevel gear

作者：徐伟万轶沙鑫美

分类号：TG315.2

出版年,卷(期):页码：2022,47(6):75-80

摘要：

闭式锻造通常存在多个动模，而各个动模之间的加载方式是影响锻件成形质量的重要因素之一。针对螺旋伞齿轮闭式锻造工艺中，存在的模具寿命低、锻件填充不满等缺陷，在原模具结构基础上增加了1个动模，并通过有限元软件Deform3D对螺旋伞齿轮的闭式锻造过程进行了建模仿真，研究了上、下凸模的4种加载方案对锻件成形质量及模具的影响，分别从材料的流动和填充规律、锻件的温度分布规律以及模具载荷的变化规律等方面进行了分析。结果表明：采用改进后的模具结构可以获得质量良好的锻件，消除了填充不满缺陷；同时，采用第3种加载方案，获得的锻件质量更好，模具的寿命更长。

There are usually multiple moving molds in closed forging. Therefore, the loading mode between moving molds is one of the important factors affecting forgings quality. In closed forging process of spiral bevel gears, there were defects such as low mold life and insufficient filling of forgings. For this problem, a moving mold was added on the basis of original mold structure, and the closed forging process of spiral bevel gear was modeled and simulated by finite element software Deform-3D. Furthermore, the influences of four loading schemes of upper and lower punches on forgings quality and mold were studied, and the flow and filling law of material, the temperature distribution law of forgings and the variation law of mold load were analyzed respectively. The results show that the forgings with good quality can be obtained by adopting the improved mold structure, and the defects of insufficient filling can be eliminated. Meanwhile, the forgings with better quality and mold with longer life can be obtained by adopting the third loading scheme.

基金项目：

江苏省高等学校自然科学研究项目（19KJB460006，17KJB460011）；三江学院机械与电气工程学院“136工程”科研项目（21SJJD001）

徐伟（1982-），男，学士，高级实验师 E-mail：xu_wei@sju.edu.cn 通信作者：万轶（1982-），女，博士，副教授 E-mail：yiwan@njxzc.edu.cn

参考文献：

[1]王以华. 锻模设计技术及实例[M]. 北京:机械工业出版社, 2009.

Wang Y H. Forging Die Design Technology and Examples[M]. Beijing:China Machine Press, 2009.

[2]夏巨谌, 余国林, 詹金辉, 等. 可分式无飞边模锻的研发与应用[J]. 模具工业, 2019, 45(5): 52-57.

Xia J C, Yu G L, Zhan J H, et al. Development and application of flashless assembled forging die[J]. Die & Mould Industry, 2019, 45(5): 52-57.

[3]黄珍媛, 章弦, 郭雷, 等. 基于成形过程的闭塞式冷锻工艺优化[J]. 华南理工大学学报:自然科学版, 2012, 40(7): 57-61.

Huang Z Y, Zhang X, Guo L, et al. Optimization of blocktype cold forging process based on forming procedure[J]. Journal of South China University of Technology: Natural Science Edition, 2012, 40(7): 57-61.

[4]高畅, 金俊松, 王新云, 等. 弧齿锥齿轮开式冷精锻工艺优化设计[J]. 模具工业, 2020, 46(12): 40-45.

Gao C, Jin J S, Wang X Y, et al. Process optimization of closed cold precision forging of spiral bevel gear[J]. Die & Mould Industry, 2020, 46(12): 40-45.

[5]郑书华, 占斐龙. 基于Deform的飞边槽结构参数对曲轴平衡块模锻质量的影响[J]. 热加工工艺, 2018, 47(21): 187-190.

Zheng S H, Zhan F L. Influence of structural parameters of flash groove on die forging quality of crankshaft balance block based on Deform[J]. Hot Working Technology, 2018, 47(21): 187-190.

[6]彭长贵, 莫竞芳, 黄林春, 等. 离合器外壳闭式模锻工艺设计[J]. 新技术新工艺, 2018,(9): 68-70.

Peng C G, Mo J F, Huang L C, et al. Process design of closed die forging of clutch shells[J]. New Technology & New Process, 2018,(9): 68-70.

[7]周杰, 齐文涛, 陶亚平, 等. 转向节闭式挤锻工艺多目标优化设计[J]. 北京工业大学学报, 2015, 41(7): 1108-1113.

Zhou J, Qi W T, Tao Y P, et al. Closed extrusiondie forging process of steering knuckle for multiobjective optimization design[J]. Journal of Beijing University of Technology, 2015, 41(7): 1108-1113.

[8]曹国英. 工艺参数对汽车变速器驱动齿轮轴温锻质量的影响[J]. 热加工工艺, 2019, 48(21): 109-111,115.

Cao G Y. Effect of process parameters on warm forging quality of driving gear shaft of automotive transmission[J]. Hot Working Technology, 2019, 48(21): 109-111,115.

[9]刘琥珀, 黄昌文,吴玉国,等.转向节预锻下模热锻过程中的磨损研究[J].安徽工业大学学报:自然科学版,2019,36(3):244-249.

Liu H P,Huang C W,Wu Y G,et al. Research on wear of preforging lower die of steering knuckle during hot forging[J].Journal of Anhui University of Technology:Natural Science,2019,36(3):244-249.

[10]盛育东. 汽车半轴螺母冷锻成型工艺研究[D].上海:上海应用技术大学,2017.

Sheng Y D. Research on Cold Forging Process of Automobile Half Shaft Nut[D].Shanghai:Shanghai Institute of Technology,2017.

[11]陈磊, 王廷坤,王宗申,等.气门成形过程数值模拟与挤压模具结构优化[J].锻压技术,2020,45(9):105-112.

Chen L,Wang T K,Wang Z S,et al.Numerical simulation on valve forming process and structure optimization on extrusion mold[J]. Forging & Stamping Technology,2020,45(9):105-112.

[12]赵伟平, 刘江涛,贾倩.基于Deform的齿轮泵从动齿轮轴闭式模锻数值模拟分析[J].热加工工艺,2020,49(13):93-95,99.

Zhao W P,Liu J T,Jia Q.Numerical simulation and analysis of closed die forging of gear pump follower gear shaft based on Deform[J].Hot Working Technology,2020,49(13):93-95,99.

[13]方秀荣, 邵艳茹,陆佳,等.锻造工艺参数对TC4钛合金锻件残余应力的影响[J].锻压技术,2021,46(3):1-8.

Fang X R,Shao Y R,Lu J,et al.Influence of forging process parameters on residual stress of TC4 titanium alloy forgings[J]. Forging & Stamping Technology,2021,46(3):1-8.

服务与反馈：

【文章下载】【加入收藏】