NOMEX蜂窝芯高速铣削加工工艺的优化

为了解决NOMEX蜂窝芯高速铣削加工过程中固持可靠性差和加工效率低以及加工表面质量差的问题，提出一种新的基于强磁场和摩擦学原理的蜂窝芯高速加工固持方法。该方法利用灌入蜂窝孔中的铁粉自重以及强磁场平台对铁粉产生的吸引力，在铁粉与蜂窝孔侧壁之间以及蜂窝、铁粉与固持平台之间产生摩擦力，实现对蜂窝底部的全约束和固定。建立了NOMEX蜂窝芯高速铣削加工的铣削力模型，进行了以铣削力最小为目标的铣削参数的优化。通过铣削参数的优化，保证了加工过程中蜂窝的固持稳定性，同时保证了蜂窝加工效率和加工质量。

Optimization of High-speed Milling Prosess for NOMEX Honeycomb

To solve the problems of fixturing reliability, low machining efficiency and machining surface integrity, a new fixturing method of NOMEX honeycomb machining, based on the strong magnetic and principle of friction, was presented. The method can completely constrain the bottom of the NOMEX honeycomb with the friction force among iron powder and honeycomb walls, honeycomb and clamping plane produced from the gravity of the iron powder injected into the honeycomb and the magnetic force produced by the additional strong magnetic field. In addition, the high speed milling force model of NOMEX honeycomb was established, and the optimization of milling parameters for the goal of minimum milling force was carried out. The fixturing stability of honeycomb is guaranteed through the optimization, higher machining efficiency and perfect machining quality are obtained in the machining process.