K4002合金异型复杂薄壁进气道铸件成形工艺

Manufacturing Process of K4002 Alloy Inlet Casting with Thin Wall and Complex Shape

某异型复杂薄壁进气道铸件的模具设计和铸造难度大。采用分块组合式金属型芯结构,设计整体蜡模精铸模具,解决了模具成形问题,并降低了模具成本;采用蜡模校正工装,对蜡模型面进行定形校正,获得了满足尺寸要求且表面质量良好的整体蜡模。设计了联合注入框架式的浇注系统,确定合理的浇注工艺参数,成功生产出了满足设计和使用要求的完整进气道铸件。

The inlet casting has a specially shaped complex thin-walled structure,and it is very hard to design its mould and produce the casting.By adopting the block combined metal core structure,the investment mould was designed to prepare the integral wax pattern of the inlet casting,solving the mould forming problem and reducing the cost of wax pattern.By adopting the shaping tooling of the wax pattern to correct its surface shapes,the integral wax pattern with good dimensional accuracy and excellent surface quality was prepared.By adopting the united-inpouring gating system and the reasonable casting parameters,the inlet casting was successfully manufactured,which completely meets with the demands of design and use.