本文選題：柔輪 + 冷滾壓工藝模型��； 參考：《華南理工大學(xué)學(xué)報(bào)(自然科學(xué)版)》2017年02期

【摘要】：針對(duì)柔輪工作性能的特殊要求,分析并優(yōu)化了傳統(tǒng)柔輪冷滾壓工藝模型,柔輪采用雙圓弧齒廓曲線模型;依據(jù)修正的Johnson-Cook本構(gòu)模型建立柔輪冷滾壓成形有限元模型并加以驗(yàn)證。仿真結(jié)果表明,采用該模型能得到清晰的雙圓弧齒形和較均勻的等效應(yīng)變分布。文中還分析了不同工藝參數(shù)(進(jìn)給速度、滾輪轉(zhuǎn)速及摩擦系數(shù))對(duì)柔輪輪齒表面殘余應(yīng)力的影響,結(jié)果表明:增大進(jìn)給速度會(huì)降低輪齒表面的殘余應(yīng)力最大值,過大的進(jìn)給速度會(huì)造成"凸起";適當(dāng)降低滾輪轉(zhuǎn)速和進(jìn)給速度,可提高殘余應(yīng)力分布的均勻性;摩擦系數(shù)與殘余壓應(yīng)力分布深度正相關(guān).
[Abstract]:In view of the special requirements of the flexible wheel working performance, the traditional cold rolling process model of the flexible wheel is analyzed and optimized. The flexible wheel adopts the double arc tooth profile curve model, and the finite element model of the cold rolling forming of the flexible wheel is established and verified according to the modified Johnson-Cook constitutive model. The simulation results show that the model can get a clear double arc tooth shape and a clear double arc tooth shape. The effect of different process parameters (feed rate, roller speed and friction coefficient) on the residual stress on the surface of the gear wheel is also analyzed. The results show that increasing feed speed will reduce the maximum residual stress on the tooth surface, and the excessive inlet velocity will cause "protruding", and the roller speed and speed will be reduced properly. The uniformity of residual stress distribution can be increased by velocity, and the friction coefficient is positively correlated with the depth of residual compressive stress distribution.
【作者單位】： 華南理工大學(xué)機(jī)械與汽車工程學(xué)院;
【基金】：廣東省科技計(jì)劃項(xiàng)目(201605131317517)~~
【分類號(hào)】：TG306

【相似文獻(xiàn)】

相關(guān)期刊論文 前4條

1 楊宏青 ,盧秀春;柔輪旋壓加工進(jìn)給比與始旋角關(guān)系的模糊識(shí)別[J];鍛壓技術(shù);2002年04期

2 范又功;諧波齒輪裝置柔輪、凸輪與薄壁軸承的制造[J];機(jī)床;1986年01期

3 張建夫;750kg空氣錘上的柔輪鍛造[J];機(jī)械工人(熱加工);1995年10期

4 ;[J];;年期

，

本文編號(hào)：2012137