Research on RSM-Based Process Parameter Optimization of Titanium Alloy Surface Polishing
DU Huapeng1, CHEN Jie1, GUO Dongliang1, WANG Deting1, XIE Chengyu2, LI Yang1
(1. Tianjin Long March Launch Vehicle Manufacturing Co. Ltd., Tianjin 300462, China;
2. Mechanical Engineering Department, North China Institute of Aerospace Engineering, Langfang 065000, China)
Abstract：Titanium alloy is well known as a kind of difficult to machine material because of its high chemical activity,
low thermal conductivity, and small elastic module. With the development of the industrial technology, there is a higher
demand for the surface integrity of titanium alloys in modern industry, so it is very important to investigate the grinding
and polishing method, which is a method to get a better surface of the titanium alloys. An experiment on the influence of
the machining parameters on surface roughness is carried out using the Box-Behnken Design (BBD), then a quadratic predictive
meodel of surface roughness based on response surface method (RSM) is built. The optimum values of machining
parameters with respect to Ra are found through optimization.
2017, 
