CAJ | 학술논문

工作台是机床的重要部件，其铸造质量要求较高，不能有气孔和缩松等铸造缺陷。通过结构分析，对机床工作台进行了阶梯式半封闭浇铸系统铸造工艺设计，根据阻流截面积的水力公式计算出了浇注系统直浇道、横浇道和内浇道的截面面积。应用 Pro/E 5.0三维造型软件，建立了铸件、浇注系统和砂型的三维模型，并进行了装配。针对机床工作台铸造工艺，应用 ProCast 仿真软件，对其铸造充型过程和凝固过程进行了有限元数值模拟，主要进行了流场和温度场的分析。从充型流场模拟可以看出，该铸造工艺方案在充型阶段金属液流动基本平稳，无冲砂现象发生；从温度场模拟可以看出基本符合均衡凝固的原则。设计和模拟研究为进一步优化机床工作台工艺提供了参考。
공작태시궤상적중요부건，기주조질량요구교고，불능유기공화축송등주조결함。통과결구분석，대궤상공작태진행료계제식반봉폐요주계통주조공예설계，근거조류절면적적수력공식계산출료요주계통직요도、횡요도화내요도적절면면적。응용 Pro/E 5.0삼유조형연건，건립료주건、요주계통화사형적삼유모형，병진행료장배。침대궤상공작태주조공예，응용 ProCast 방진연건，대기주조충형과정화응고과정진행료유한원수치모의，주요진행료류장화온도장적분석。종충형류장모의가이간출，해주조공예방안재충형계단금속액류동기본평은，무충사현상발생；종온도장모의가이간출기본부합균형응고적원칙。설계화모의연구위진일보우화궤상공작태공예제공료삼고。
Platen is one of the important part of machine tool.Its requirement of the casting quality is higher,and it should not have pores,shrinkage and other casting defects.By analyzing the structure of the machine platen casting,designed semi-closed ga-ting system of casting process on it.According to the hydraulic formula of cross section area of flow,calculate the area of the gating system of sprue and runner and ingate.Build models of casting,gating system and sand mold,then assemble them by Pro/E 5.0 software,which is a three dimension molding software.The filling process and solidification process of the platen is numerically simulated by the computer FEA software ProCast.Mainly carry on the analysis of flow field and temperature field.The filling flow field simulation shows that the casting process in the liquid metal filling stage of the basic flow smoothly,and no sand washing phe-nomenon occurrs.The temperature field simulation shows proportional solidification principle.The design and simulation study pro-vides reference to further optimize the machine table process.