CAJ | 학술논문

工艺参数对拼焊板拉弯成形结构件的外形精度有着重要的影响,针对所研究的拼焊板零件的结构形式,其外侧线轮廓、内侧线轮廓、筋部面轮廓等都是评价成形质量的重要指标。通过正交试验,研究了拉弯成形过程中的夹头各阶段的旋转角α1~α4,以及夹头沿坯料轴线方向的引伸力F 等工艺参数,对构件外侧线轮廓、内侧线轮廓、筋部面轮廓、外侧面轮廓及内侧面轮廓等外形精度的影响,获得了影响拼焊板拉弯件成形外形精度的影响因素的主次顺序。研究结果表明,影响外侧线轮廓与筋部面轮廓因素的主次顺序为：引伸力 F、旋转角α4、旋转角α3、旋转角α2、旋转角α1；内侧线轮廓各个影响因素的极差值均很小,且测量值均匀,可认为内侧线轮廓基本不受工艺参数影响；影响外侧面轮廓与内侧面轮廓因素的主次顺序为：旋转角α3、旋转角α4、旋转角α2、旋转角α1、引伸力 F。
공예삼수대병한판랍만성형결구건적외형정도유착중요적영향,침대소연구적병한판령건적결구형식,기외측선륜곽、내측선륜곽、근부면륜곽등도시평개성형질량적중요지표。통과정교시험,연구료랍만성형과정중적협두각계단적선전각α1~α4,이급협두연배료축선방향적인신력F 등공예삼수,대구건외측선륜곽、내측선륜곽、근부면륜곽、외측면륜곽급내측면륜곽등외형정도적영향,획득료영향병한판랍만건성형외형정도적영향인소적주차순서。연구결과표명,영향외측선륜곽여근부면륜곽인소적주차순서위：인신력 F、선전각α4、선전각α3、선전각α2、선전각α1；내측선륜곽각개영향인소적겁차치균흔소,차측량치균균,가인위내측선륜곽기본불수공예삼수영향；영향외측면륜곽여내측면륜곽인소적주차순서위：선전각α3、선전각α4、선전각α2、선전각α1、인신력 F。
The precision of profile of TWB stretch bending parts is affected significantly by process parameters. Ac-cording to the structural shape of the researched TWB part, its profile of outer line, inner line, the reinforced surface, etc. are the important items to evaluate the precision of outline of the part. The effect of parameters, such as rotation angle α1~ α4 of collet on different stage of stretch bending and extension force F supplied by the collet along the axial direction of blank, on the precision of profile, such as the profile of outline, inner line, the reinforced surface, the inner and outer sur-face, was investigated by orthogonal experimental. The influencing sequence of the process parameters on the forming qual-ity was obtained. The result shows that the influence sequence of the profile of outer line and the reinforced surface is that:extension force F, the rotation angle α4 , the rotation angle α3 , the rotation angle α2 , the rotation angle α1; the influence of the process parameters on the profile of inner line are all small, so the profile of inner line is almost unaffected; the in-fluence sequence of the profile of inner and outer surface is that: the rotation angle α3 , the rotation angle α4 , the rotation angle α2 , the rotation angle α1 , the extension force F.