6061-T6铝合金纵-扭复合振动超声深滚加工试验研究

发布时间：2018-11-05 15:48

【摘要】：基于纵-扭复合振动超声加工和超声深滚加工提出了纵-扭复合振动超声深滚加工工艺。采用普通深滚与纵-扭复合振动超声深滚2种加工方法对供应态6061-T6铝合金轴件进行表面强化处理,研究深滚工艺参数对加工表面质量的影响。结果表明:引入纵-扭复合振动后,超声深滚工艺参数对表面质量的影响规律与普通深滚不同,且在相同的工艺参数下,超声深滚所获得的表面粗糙度Ra值要小于普通深滚,最高降低约50%,而表面显微硬度和硬化率则有大幅提高,硬化率最高约为普通深滚的3倍,经纵-扭复合振动超声深滚处理后的表面更光滑,从而证明了纵-扭复合振动超声深滚加工工艺能更有效地实现6061-T6铝合金的强化处理。
[Abstract]:Based on the ultrasonic machining of longitudinal torsional vibration and ultrasonic deep rolling, the ultrasonic deep rolling process of longitudinal torsion composite vibration is presented. The surface strengthening treatment of the supplied 6061-T6 aluminum alloy shaft was carried out by two kinds of processing methods: common deep rolling and longitudinal torsion composite vibration deep rolling. The effect of deep rolling process parameters on the surface quality of the machined surface was studied. The results show that the influence of ultrasonic deep rolling parameters on surface quality is different from that of ordinary deep rolling, and the surface roughness Ra value obtained by ultrasonic deep rolling is lower than that of ordinary deep rolling under the same process parameters. The maximum reduction is about 50%, while the surface microhardness and hardening rate are greatly increased. The highest hardening rate is about three times that of ordinary deep rolling, and the surface is smoother after deep rolling with longitudinal and torsional vibration. It is proved that the process of ultrasonic deep rolling with longitudinal and torsional composite vibration can realize the strengthening treatment of 6061-T6 aluminum alloy more effectively.
【作者单位】：河南理工大学;河南工业和信息化职业学院;
【基金】：国家自然科学基金(51005071) 河南理工大学青年骨干教师资助计划
【分类号】：TG663

【参考文献】