A Study on the Cooling Characteristics of Cooling-Jacket in High-Speed Spindle according to the Flow Rate

고속 주축계의 자켓의 유량 변화에 따른 냉각 특성

Cooling characteristics of cooling jacket for spindle system with built-in motor are studied. For the analysis, three dimensional model for the cooling jacket is built by using finite volume method. The three dimensional model includes the estimation on the amount of heat generation of bearing and built-in motor and the thermal characteristic values such as heat flux on the boundary. Numerical results show that flow rate are important factors for cooling characteristics of cooling jacket.