【摘要】 增材制造又称3D打印,作为一种新型的智能化加工技术,在高端铸造砂型方面得到了广泛应用。但是,关于3D打印砂型结构设计方面的研究还没有受到足够的重视,大部分砂型依然采用轮廓规则的实心结构,材料利用率不高,打印效率受限。本文以一种高端离心泵壳为例,通过研究砂型镂空、随形气道、砂型一体化等手段,设计出满足铸造使用要求的砂型方案,相比采用规则实心结构砂型,排气通畅,节约材料,并经过打印和浇注,最终得到符合加工要求的泵壳铸件。更多还原

【Abstract】 Additive manufacturing,also known as 3 D printing,as a new type of intelligent processing technology,has been widely used in high-end foundry sand molds.However,the research on the structure design of 3 D printing molds has not received enough attention.Most of the sand molds still use solid structures with regular outlines,which result in low material utilization and limited printing efficiency.Taking a centrifugal pump casing as an example,this paper designs a mold plan that meets the requirements of casting by studying sand mold hollowing,conformal air passages,and sand mold integration.Compared with the regular solid structure sand mold,the exhaust is smooth and economical.After printing and pouring,the pump casing castings that meet the processing requirements are finally obtained.更多还原