CAJ | 학술논문

中空结构轴类件具有显著减轻轴重的优势，但其成形制造困难。文章提出楔横轧层合轴的思路，应用DE-FORM-3D软件对楔横轧同种材料层合轴和单层轴的成形过程进行有限元数值模拟，得到了双层同种材料层合轴及单层材料轴在展宽段的变形特征及应力分布规律的特点。通过对比两种轴的应力分布，总结出层合轴应力分布的形成原因，以及应力分布场对轧制实验中同种材料结合理论的指导意义。通过实验，验证了楔横轧同种材料层合轴的可行性，为楔横轧轧制同种或异种层合轴的深入研究提供了理论依据。
중공결구축류건구유현저감경축중적우세，단기성형제조곤난。문장제출설횡알층합축적사로，응용DE-FORM-3D연건대설횡알동충재료층합축화단층축적성형과정진행유한원수치모의，득도료쌍층동충재료층합축급단층재료축재전관단적변형특정급응력분포규률적특점。통과대비량충축적응력분포，총결출층합축응력분포적형성원인，이급응력분포장대알제실험중동충재료결합이론적지도의의。통과실험，험증료설횡알동충재료층합축적가행성，위설횡알알제동충혹이충층합축적심입연구제공료이론의거。
Shaft parts with hollow structure have an advantage of reducing significantly the weight of the shaft , but its shape manufacturing is difficult .This paper presents a concept of forming laminated shaft by cross wedge rolling .The forming process of rolling the same material laminated shaft and single shaft by cross wedge rolling was simulated numerically by the finite element software DEFORM-3D .The deformation and stress distribution rules of the same material laminated shaft and single shaft were obtained during stretching stage by cross wedge rolling .At last , the feasibility of the cross wedge rolled the same material lami-nated shaft was verified by the experiment .The rules provide theoretical guidance for further study of cross wedge rolled the same and different material laminated shafts .