铸造厂降低费用和减轻铸件重量的努力每天都在进行。采购方要求制造方能够达到这样的技术水平 ,即其所提供的工件在具备必要的机械性能和物理性能的同时 ,减轻质量和节约成本。对于汽车工业来说 ,采购方这种要求的结果就是许多铸铁和铸钢件被替换成了铝铸件。然而其高成本的原 The foundry’s efforts to reduce costs and reduce the weight of castings are done daily. The purchaser requires that the manufacturer be able to achieve the technical level that the workpieces it provides reduce the quality and cost while having the necessary mechanical and physical properties. As a result of the buyer’s request for the automotive industry, many cast iron and castings have been replaced with aluminum castings. However, its high cost of the original