Composite Armor Drilling Process And Parameter Optimization

The composite armor has good capabilities in defending armor-piercing shell, shrapnel, radiation, etc. It was the ideal material to manufacture the tank armor vehicles protection. The composite armor is composed with project ceramics, glass fiber reinforced plastic and aluminum alloy, etc. As a result of matching requirement, it is needed to carry on the processing of making a hole in the composite armor. Because each layer material has different performance and processing mechanism, it is very difficult to machining on the composite armor and the problem was stood out when in mass production. Therefore, this thesis did thorough researches in allusion to the problems of making hole processing technology in the composite armor and optimizing craft parameters when it was in mass production.First, the two cores level materials (the engineering ceramics and the glass fiber reinforced plastic) were taken as the key points, The material performance, cutting difficulty, craft requirement and cutting tool were analyzed. In allusion to the processing request of the composite armor, appropriate processing craft installments were synthetically selected. The sintered diamond drilling tool was chosen to do the research of machining technology on it. Then, the relation between the craft parameters and the axial force was analyzed by orthogonal experiments, and the cutting force' s empirical formula was established. Meanwhile, the technological parameter' s value bounds have been obtained by the single factor test. Then the questions appearing in the processing were analyzed, and the corresponding measures were proposed. Finally, the parameter optimizing model was established, taking productivity as the goal. Utilizing the genetic algorithm to optimize calculating, the craft parameters with using value were obtained. The theories and the experiments confirmed the rationality of the analysis and the accuracy of the mathematical model, the findings has certain guiding sense to the composite armor processing as well as the designing and improvement of the engine bed.