CAJ | 학술논문

螺旋锥齿轮形状复杂,齿线长而弯曲,不易通过常规方法加工.摆辗作为一种新的塑性成形螺旋锥齿轮的方法,克服了精密模锻成形力过大的困难.基于有限元的方法,本文对螺旋锥齿轮摆辗成形过程进行研究,分析了成形各阶段的变形与载荷特性;针对摆辗最后阶段飞边面积较大、载荷过大的特点,提出了摆辗摆头改进的方法,减少了飞边面积,从而使得成形力减少了1/3;通过铅试件成形验证了摆辗螺旋锥齿轮成形过程,说明了摆辗螺旋锥齿轮是可行的.
라선추치륜형상복잡,치선장이만곡,불역통과상규방법가공.파전작위일충신적소성성형라선추치륜적방법,극복료정밀모단성형력과대적곤난.기우유한원적방법,본문대라선추치륜파전성형과정진행연구,분석료성형각계단적변형여재하특성;침대파전최후계단비변면적교대、재하과대적특점,제출료파전파두개진적방법,감소료비변면적,종이사득성형력감소료1/3;통과연시건성형험증료파전라선추치륜성형과정,설명료파전라선추치륜시가행적.
Because the shape of spiral bevel gear is complex and the curve of the gear tooth is so long and spiral , the spiral bevel gear is difficult to be processed by conventional methods. The disadvantage of over large load during the die forging process of spiral bevel gear can be overcome by rotary forging process. Using finite element method, the process of rotary forging of spiral bevel gear was studied, and deformation and load at every stage were analyzed. For the large flash and the excessive load, the improvement of the punch profile was proposed. As a result, the area of the flash reduces and the load decreases by 1/3. Through the lead specimen test, the tooth filling process during the process of rotary forging of spiral bevel gear is verified, which demonstrates that the process of rotary forging of spiral bevel gear is feasible.