钛合金表面多磁极耦合旋转磁场光整加工特性

面向激光增材制造钛合金表面的光整加工需求，设计出一种多磁极耦合旋转磁场光整加工装置来研究光整加工特性。基于ANSYS Maxwell仿真软件分析了光整加工装置的磁场强度分布。搭建了实验光整平台，分析了主轴转速、C轴转速和加工间隙对表面质量的影响。结果表明，在主轴转速500 r/min、C轴转速160 r/min和加工间隙0.7 mm的加工条件下，表面粗糙度Ra由5.991 μm下降至0793 μm。扫描电子显微镜(SEM)观测表明，光整后的钛合金表面沉积层消失，表面质量得到显著改善。

Finishing Characteristics of Titanium Alloy Surfaces Using Multi-pole-coupling Rotational Magnetic Field

Aiming at the finishing requirements of titanium alloy surfaces fabricated by selective laser melting, a multi-pole-coupling rotational magnetic field finishing device was designed to study the finishing characteristics.The ANSYS Maxwell software was employed to analyze the magnetic field intensity distribution of finishing apparatus.A finishing experimental platform was established, and the influences of spindle speed, C-rotary table speed, and machining gap on surface roughness were investigated.The results show that the values of surface roughness decrease from 5.991 μm to 0.793 μm under the machining conditions of spindle speed is as 500 r/min, C-rotary table speed is as 160 r/min, and machining gap is as 0.7 mm.The scanning electron micnoscope(SEM) observation shows that the surfaces deposited layer disappeare after finishing, and the surface quality is greatly improved.