Shell forming mode effect on casting quality

[摘要] The paper deals with the influence of shell forming modes on some parameters of castings: the surface and internal defects. The degree of roughness and stress concentration were determined on the castings obtained under production conditions. According to the result, it was found that the use of variable pressure in the formation of the shell ensures the purity of the casting and the reduction of the stress level in the casting.

[学科分类] 金属与冶金

[关键词] casting;sand-resin mold;roughness;concentration of stresses;homogeneity