锻压技术

十字轴小飞边精密成形工艺

英文标题：Precision forming process of cross shaft with small flash

作者：李春洋曹民业刘华

分类号：TG316

出版年,卷(期):页码：2020,45(4):39-44

摘要：

针对十字轴热模锻成形过程中飞边大、成形力大的问题，根据十字轴形状尺寸及锻造成形工艺特点，提出十字轴小飞边精密成形工艺。采用Deform-3D对十字轴小飞边精密成形工艺过程进行数值模拟，对模拟成形的十字轴锻件及其金属速度场、等效应变、模具载荷-时间曲线进行分析。模拟结果显示，十字轴锻件成形完整，金属流动均匀，模具载荷减小。结合模拟结果，设计制造模具进行十字轴成形工艺试验。试验得到的十字轴锻件，填充饱满，无折叠、表面裂纹等缺陷，飞边明显减小，与模拟结果一致。结果表明：改变十字轴热模锻成形工艺，采用十字轴小飞边精密成形工艺，使锻件飞边减小，锻造过程成形载荷降低。

Aiming at the problems of large flash and large forming force during the hot die forging process of cross shaft, according to the shape and size of cross shaft and the characteristics of forging process, a precision forming process of cross shaft with small flash was proposed. The numerical simulation on the precision forming process of cross shaft with small flash was carried out by Deform-3D, and the simulated cross shaft forging and its metal velocity field, equivalent strain and load-time curve of mold were analyzed. The simulation results show that the cross shaft forging is completely formed, the metal flows uniformly, and the mold load is reduced. Combined with the simulation results, the cross shaft forming process test was carried out by designed and manufactured molds. The cross shaft forgings obtained in the test were full filled and no defects such as folds and surface cracks, and the flash was significantly reduced, which were consistent with the simulation results. The results show that changing the hot die forging process of cross shaft, the precision forming process of cross shaft with small flash is used to reduce the forging flash and the forming load during the forging process.

基金项目：

郑州市科技重大专项资助项目(152PZDZX007)

李春洋（1993-），男，硕士研究生 E-mail：17537158870@163.com 通讯作者：刘华（1962-），男，博士，博士生导师，研究员 E-mail：13903832971@163.com

参考文献：

[1]杜照国.十字轴模锻工艺设计[J].模具技术,2000，(4):57-60.

Du Z G. Design of cross-shaft die forging process[J].Mold Technology,2000，(4):57-60.

[2]曹民业,李春洋,刘百宣,等.一种异形截面钢丝滚道全模拉拔工艺[J].锻压技术,2019,44(11):98-102.

Cao M Y, Li C Y, Liu B X，et al. A full-die drawing process for a special-shaped steel wire raceway [J]. Forging & Stamping Technology, 2019, 44 (11): 98-102.

[3]徐萍,王晓萍.热模锻压力机上差速器十字轴的小飞边锻造[J].机械设计与制造,2010，(9):88-90.

Xu P, Wang X P. Small flash forging of differential cross shaft on hot forging press[J].Machinery Design & Manufacture,2010，(9):88-90.

[4]胡国安,夏巨谌,王英.十字轴径向挤压可分凹模设计[J].模具工业,1992，(12):41-45.

Hu G A, Xia J C, Wang Y. Design of the cross-axis radial extrusion can be divided into concave molds[J].Mould Industry,1992，(12):41-45.

[5]熊江,谢焕.基于有限元模拟的十字轴锻件模具设计[J].热加工工艺,2013,42(17):140-141，144.

Xiong J, Xie H. Design of cross shaft forging die based on finite element simulation[J].Hot Working Technology,2013,42(17):140-141，144.

[6]郑光文,白凤梅.差速器十字轴精密塑性成形工艺研究[J].热加工工艺,2014,43(15):138-139，142.

Zheng G W, Bai F M. Study on precision plastic forming process of differential cross shaft[J].Hot Working Technology,2014,43(15):138-139，142.

[7]严健鸣,王成勇,朱取才,等.双凸模冷径向挤压十字轴的模拟[J].精密成形工程,2013,5(2):51-54，58.

Yan J M, Wang C Y, Zhu Q C, et al. Simulation of cold radial extrusion cross axis with double punches[J].Precision Forming Engineering,2013,5(2):51-54，58.

[8]汪金保,刘华,孙红星,等.大直径带毂直齿轮冷精密成形数值模拟及工艺分析[J]. 精密成形工程, 2014, 6(6):104-110.

Wang J B, Liu H, Sun H X, et al. Numerical simulation and process analysis of cold precision forming of large diameter hub straight gear[J]. Journal of Netshape Forming Engineering, 2014, 6(6):104-110.

[9]刘光辉,刘百宣,刘华,等.双法兰式三阀组阀体多向精密成形工艺[J]. 精密成形工程, 2017, 9(2):58-62.

Liu G H, Liu B X, Liu H, et al. Multi-direction precision forming technology of double flanges tri-valve set body[J]. Journal of Netshape Forming Engineering, 2017, 9(2):58-62.

[10]李红日.基于计算机模拟的十字轴模锻挤压复合工艺研究[J].热加工工艺,2013,42(21):129-130，133.

Li H R. Study on the composite process of cross-shaft die forging based on computer simulation[J].Hot Working Technology,2013,42(21):129-130，133.

[11]王久林,薛世博,徐杰,等.某型号十字轴精密成形工艺分析[J].精密成形工程,2015,7(3):73-77.

Wang J L, Xue S B, Xu J, et al. Analysis of precision forming process of a certain type of cross shaft[J]. Journal of Netshape Forming Engineering,2015,7(3):73-77.

[12]孙岩志,郝滨海,徐桂华.基于DEFORM的十字轴预锻成形分析及模具改进[J].锻压装备与制造技术,2008，(3):38-39.

Sun Y Z, Hao B H, Xu G H. Analyzing and die improvement of cross-shaft pre-forging based on DEFORM[J].Forging Equipment & Manufacturing Technology,2008，(3):38-39.

[13]汪利霞.万向节十字轴数值模拟及结构改进[J].新疆石油科技,2011,21(2):1-2.

Wang L X. Numerical simulation and structural improvement of universal joint cross shaft[J].Xinjiang Petroleum Science & Technology,2011,21(2):1-2.

[14]李春洋,刘华,刘光辉,等.制动系统不锈钢管端部精密成形工艺研究[J].精密成形工程,2019,11(1):36-40.

Li C Y, Liu H, Liu G H, et al. Study on precision forming process of stainless steel tube ends in braking system[J]. Journal of Netshape Forming Engineering,2019,11(1):36-40.

[15]金广柱,王继明.基于DEFORM的十字轴复动成形工艺试验研究[J].佳木斯大学学报：自然科学版,2009,27(6):892-894.

Jin G Z, Wang J M. Experimental research on cross-shaft reactive forming process based on DEFORM[J].Journal of Jiamusi University: Natural Science Edition,2009,27(6):892-894.

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