At first a surface with which the casting is assembled and matched is known,the thickness of the casting section is provided and the machining deformation and allowance of the casting are decided;

• 已知与铸件安装配合的曲面数据及铸件各截面厚度,确定铸件的加工变形和加工余量后,分别求出铸件曲面和模型曲面的离散有序数据作为神经网络的样本数据。