High-speed milling machining dynamic cutting force prediction system and parameter optimization method

Abstract

The invention discloses a high-speed milling machining dynamic cutting force prediction system and a parameter optimization method, the milling force can be predicted through the milling force prediction system, a cutting force coefficient predicted by the system can be applied to prediction of the milling force under the same milling condition and different process parameters, meanwhile, the test frequency is reduced, and under the condition that the test is reliable, milling force model parameters can be identified through a single test, the test cost is reduced, the reliability and the success rate of the test are improved, a flutter stability lobe graph is obtained through an analytical method, a stable interval is obtained, and on the basis of the stable interval, the milling force is brought into constraint conditions for milling parameter process optimization; and meanwhile, aiming at a part of limitation of the standard genetic algorithm, the coding mode and the crossover and mutation probability in the standard genetic algorithm are improved, and the purpose of optimally balancing the processing efficiency and the production cost is achieved.

Description

technical field [0001] The invention relates to the technical field of machining, in particular to a dynamic cutting force prediction system and parameter optimization method for high-speed milling. Background technique [0002] The level of development of the manufacturing industry is an important indicator of a country's industrialization and regional comprehensive strength or competitiveness. In today's globalized world, market competition is increasingly fierce. This requires the manufacturing industry to respond quickly to the existing needs of the market and to have the ability to discover potential needs. Finally, products with excellent performance, reasonable price and short production cycle can be manufactured. As an important high-tech product in the machinery manufacturing industry, the CNC milling machine is an important basic equipment for processing precision and ultra-precision instruments and equipment, and an important symbol of the transformation of mech...

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Problems solved by technology

[0004] At present, the cutting force is predicted by considering the static cutting force model. However, during the cutting process, tool eccentricity, runout and tool deformation will affect the prediction of cutting force, making the prediction accuracy low. In the high-speed cutting environment, stable Influenced by many factors, the cutting force prediction model or empirical formula established under normal conditions cannot reflect the dynamic characteristics of the cutting force well, and cannot accurately predict the cutting force. Therefore, a high-speed cutting force is urgently needed. Milling dynamic cutting force prediction system and parameter optimization method to solve the above problems

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