精密小直径深长孔硬态铣削技术研究

Resrch on Hard Milling Technology for Precision Small Diameter Deep and Long Hole

针对转子内孔尺寸小、精度高、表面粗糙度值低及高精度偶件(微间隙)的精密机械加工难点,优化工艺流程,通过切削试验寻求硬态铣削最佳工艺参数组合,并研究硬态铣削零件表面完整性,建立基于加工表层、表面完整性分析的质量评价。解决了现有产品关键工序能力不足、生产效率低下的问题,提升了企业的核心制造能力。

The inner hole has the characteristics of small size,high precision,low surface roughness value and high-precision coupling (micro-gap),which is a difficult point of precision machining.By optimizing the process flow, the cutting test is conducted to find the optimal combination of process parameters for hard milling;through the surface integrity study of hard-milled parts,the quality evaluation based on the processing surface and surface integrity analysis is established.It solves the problem of insufficient key process capability and low production efficiency of existing products,and enhances the core manufacturing capability of the enterprise.