锻压技术

冷镦挤成形技术在粘贴式锌质平衡块制造中的应用

英文标题：Application of cold upsetting extrusion forming technology in the manufacture of zinc paste type counterbalance

作者：张亚龙徐新成朱建军

单位：上海工程技术大学

分类号：

出版年,卷(期):页码：2016,41(1):66-70

摘要：

研究了锌质粘贴式平衡块冷镦挤成形的可行性，根据零件要求设计了镦挤模具。通过Deform-3D有限元模拟其塑性成形过程，发现在飞边区域损伤因子和表面延伸率较大，零件主体部分成形质量良好；成形载荷峰值低于理论计算值10%左右。按拟定工艺路线生产的零件重量误差在±0.5 g以内；相较于压铸件，零件内部组织更致密、硬度提高了1倍、冲击韧性提高了2倍以上，模具寿命超过15万件，相当于压铸模具寿命的5倍；材料利用率提高了20%左右，避免了压铸过程熔融锌锭工序，显著降低了产品能耗。

It was studied the feasibility of the cold upsetting extrusion forming in the manufacture of zinc paste type counterbalance, and the mould was designed according to the requirements of the part. The simulation of forming process by Deform-3D shows that the damage factor and elongation ratio are more remarkable on the flash edge, however, the quality of the part is good, and the peak of forming load is about 10% lower than that of theoretical calculation. The error of the parts produced according to the proposed process routes is within ±0.5 g in weight. Comparing with die casting products，the internal organization is denser with the hardness increased by one time, and the impact toughness increased by more than two times. Further, the mould life is more than 150000 pieces as five times as that of the mould casting, the material utilization increases by 20% or so. As a result, the molten zinc ingot process is avoided in the die casting process, and the energy consumption of products reduces significantly.

基金项目：

上海市085内涵建设（nhjx-2015-02）

张亚龙（1988-），男，硕士，助理实验师

参考文献：

[1]徐新成,赵中华.多挤压通道的车轮平衡块的毛坯设计[J].锻压技术，2011，40（23）：76-78，81.

Xu X C,Zhao Z H. Blank design of balance wheels blocks with several extruding channel [J]. Forging & Stamping Technology,2011,40(23):76-78,81.

[2]张水忠.挤压工艺及模具设计[M].北京：化学工业出版社，2009.

Zhang S Z. Extrusion Technology and Mould Design[M].Beijing:Chemical Industry Press,2009.

[3]谢建新,刘静安.金属挤压理论与技术[M].北京：冶金工业出版社，2002.

Xie J X,Liu J A.Theory and Technology of Metal Extrusion[M].Beijing:Metallurgical Industry Press,2002.

[4]胡建军,李小平.Deform-3D塑性成形CAE应用教程[M].北京:北京大学出版社,2012.

Hu J J,Li X P.CAE Application Course of Plastic Forming by Deform-3D[M].Beijing:Peiking University Press,2012.

[5]张桂尚,雷卫宁,谈衡,等.有限元数值模拟在齿轮精锻成形中的研究与应用[J].机械设计与制造工程，2015，4（2）：62-67.

Zhang G S,Lei W N,Tan H,et al .Ｒesearch and application of finite element numerical simulation in gear precision forging[J]. Machine Design and Manufacturing Engineering, 2015,4(2):62-67.

[6]管婧,王广春,赵国群.飞边槽结构形式对模锻成形的影响[J].热加工工艺，2002，31（5）：40-41.

Guan Q,Wang G C,Zhao G Y. Influence of different type of flash on the open-die forging[J]. Hot Working Technology, 2002,31(5):40-41.

[7]张朝许,阳文辉.不同飞边槽结构对汽车曲轴锻件充填性的影响[J].热加工工艺，2013，42（3）：118-119，123.

Zhang C X,Yang W H. Influence of different structure of flash slots on filling die in car crankshaft forging[J]. Hot Working Technology, 2013,42(3):118-119,123.

[8]李继文,杨松涛,魏世忠,等. 轧制方式和变形量对纯钼板坯微观组织和织构的影响[J].稀有金属，2014, 38(3): 348-353.

Li J W, Yang S T, Wei S Z,et al. Microstructure and texture of pure molybdenum sheet at different rolling methods and deformation[J]. Chinese Journal of Rare Metals, 2014, 38(3): 348-353.

[9]吴瑶,许晓静,张振强,等. 多向锻造2099铝锂合金挤压材的组织和性能[J].稀有金属,2014,38(6):961-966.

Wu Y, Xu X J, Zhang Z Q,et al. Microstructure and property of multi-directional forged 2099 Al-Li alloy extrusions[J]. Chinese Journal of Rare Metals, 2014,38(6): 961-966.

[10]崔忠圻,覃耀春.金属学与热处理[M].北京:机械工业出版社，2012.

Cui Z Q,Qin Y C.Metallography and Heat Treatment[M].Beijing:China Machine Press,2012.

[11]范金辉, 陈克信, 梁建平,等. 冷变形对GH3535合金的组织和力学行为的影响[J].材料研究学，2015，29（6）：439-444.

Fan J H, Chen K X, Liang J P, et al. Effect of cold deformation on microstructure and mechanical behavior of Ni-based high temperature alloy GH3535[J]. Chinese Journal of Material Research, 2015,29(6):439-444.

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