钛合金TC4高速铣削表面形貌及表层组织研究

 钛合金高速铣削加工以高效率、高质量的优点已经广泛应用于航空航天工业。为优化钛合金材料高速铣削工艺参数，给表面完整性研究提供试验依据，采用扫描电镜（SEM）分析了不同铣削参数加工的钛合金试样表面形貌和表层组织。发现随着主轴转速的增加铣削表面质量越来越好，而轴向切深对钛合金高速铣削工件表层微观组织的影响甚微；铣刀一次走过的区域，中心处表面比边缘处表面质量好；绝大部分铣削表层组织中看不到变形组织，只是在个别区域出现了局部不连续的变质层，但切道侧面尖角处晶粒歪扭变形明显。

Study on Surface Morphology and Microstructure of Titanium Alloy TC4 Under High-speed Milling

The high-speed milling of titanium material has been widely used in aerospace industry for its high-efficiency and high-quality advantages. In order to provide experimental basis for optimizing the parameters of high-speed milling titanium materials and study on surface integrity,the surface morphology and microstructure of the high-speed milling of titanium with different parameters are analyzed by scanning electron microscope (SEM). The results are as follows:the milling surface quality becomes better wit...