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温成形参数对螺旋锥齿轮弹性变形的影响
英文标题:Effect of warm forming parameters on elastic deformation of spiral bevel gears
作者:吴昊 李振红 刘致远 张晨星 张渤 熊桑 
单位:南京工程学院 
关键词:螺旋锥齿轮 温成形 弹性回复 正交试验 成形载荷 
分类号:TG316
出版年,卷(期):页码:2021,46(5):123-130
摘要:

 针对螺旋锥齿轮近净成形过程中,由于模具的弹性变形程度较大,从而导致模具寿命降低、齿轮精度不足等问题,对螺旋锥齿轮成形和模具弹性回复过程进行计算机数值模拟,并采取正交试验,研究坯料温度、压下速度、摩擦因子这3个变量对模具寿命、齿轮与模具弹性回复的影响,以用于指导实际生产中工艺参数的设定。在所设定的环境下,压下速度对弹性回复的影响最大,且基本呈线性分布,其次为坯料温度,摩擦因子对弹性回复的影响最小。在压下速度为10 mm·s-1、坯料温度为850 ℃、摩擦因子为0.1的条件下,模具和工件受到的载荷处于较低水平且弹性回复较为均匀。

 

 In the near-net forming process of spiral bevel gears, the elastic deformation degree of mold is relatively larger, which leads to the problems such as reduced mold life and insufficient gear accuracy. Therefore, an orthogonal test was adopted by selecting three variables of blank temperature, reduction speed and friction factor, and the influences of the three variables on the mold life and the elastic recovery of gear and mold were explored by computer numerical simulation on the forming of spiral bevel gear and the elastic recovery process of mold to guide the setting of process parameters in the actual production. The results show that under the set environment, the reduction speed has the greatest influence on the elastic recovery and is basically linearly distributed, followed by the blank temperature, and the friction factor has the smallest influence on the elastic recovery. Under the conditions of the reduction speed of 10 mm·s-1, the blank temperature of 850 ℃ and the friction factor of 0.1, the loads on the mold and workpiece are at a relatively lower level, and the elastic recovery is more uniform.

 
基金项目:
南京市产学研合作补助项目(201722063);江苏省高等学校大学生创新创业训练计划项目(201911276092H);南京工程学院“挑战杯”竞赛支撑项目(TZ20200002)
作者简介:
吴昊(1999-),男,本科生 E-mail:Hoo_Wu@foxmail.com 通讯作者:李振红(1978-),男,博士,副教授 E-mail:lizhenhongnj@163.com
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