Experimental Study Of High-speed Milling Of Aluminum Alloy Circular Surface

High-speed processing in high-precision machining of aluminum alloy workpiece has clear advantages compared with other processing methods, this paper make some researches on high-speed processing of inner-hole and outer-circularity with a small-diameter cutting tool.The characteristic of the structure and technology is analyzed in detail in the paper. Basing on the processing characteristics and high-speed machine cutting tool, the relevant tools are chosen taking into account cut-tool market factor. Basing on the shape of the part and the point and position optimization of the mathematical model of the traveling salesman problem, the tool path of the interior hole was optimized and then is simulated with the CAM module of UG4.0 and the NC program is got. the cutting parameters of the high-speed processing aluminum parts were optimized through the single-factor experiments, interior holes and exterior cylindrical is the targets for the experiments, the effect of the Cutting depth, the feed rate of the each tooth and the speed to the cutting force, the surface roughness and the burr is got. The process of the processing the workpiece is simulated ,and the mobile distance of the workpiece unclamped, when it is cut the cylindrical by tool ,is simulated by the FEM software ANSYS too.the experiments of the processing parts under the low-speed and high-speed are done. from the result of the experiments, we know the quality of the low-speed processing parts is poor, in order to improve the quality of the high-speed processing parts, the workpiece must be clamped when it's exterior circularity is cut, in order to reduce the burr of the interior hole, the retreating tool should be avoided. The design of the fixture which is proved by the cutting experiments is right .The results of the work done are the foundation of the future experiments and research work, also has the value in the actual processing.