关键词: 复合分析方法, 车刀, 循环内冷流道, 拓扑优化, 流固耦合热分析

Abstract: To achieve good mechanical performance with a reasonable fluid channel layout for an internal cooled cutting tool,an optimal design method which combined structural topology and fluid-structure coupling thermal field analysis was suggested according to the structural characteristics of internal cooled cutting tool.The Solid Isotropic Microstructures with Penalization (SIMP) topology optimization method was applied to obtain internal flow channel areas under the greatest structure working condition.Through the engineering redesign,the areas were connected to ensure the coolant flow effectively in the internal channel.The fluid-structure coupling thermal field analysis design method was adopted to optimize tool flow channel by taking minimum the max temperature as objective.The design results showed that the stiffness of the optimal structure was increased,the deformation was decreased and the highest temperature was reduced at the same time by comparing with the traditional internal cooled cutting tool structure.The method was effective and could be used universally in the internal cooled tools designing.

Key words: design method, turning tool, cyclic internally cooled channel, topology optimization, thermal analysis of fluid-structure interaction