Because the model is to do different open die processing and forming, there are many disadvantages, and the product design will bring some influence, so the future of the model needs to do some tests, one is processing inspection, the other is design inspection.

　　1. 处理检查

　　1. Handling inspection

　　A.检查外观模型是否符合设计，表面处理过程是否与设计一致，整体效果是否达到预期效果。

　　A. check whether the appearance model conforms to the design, whether the surface treatment process is consistent with the design, and whether the overall effect reaches the expected effect.

　　B.检查结构模型是否可以组装，是否有干扰，是设计干扰还是模型处理干扰，模型是否与3D一致。

　　B. check whether the structural model can be assembled, whether there is interference, whether there is design interference or model processing interference, and whether the model is consistent with 3D.

　　C型号是否合理可控的设计中,通常标准公差在0.51.5的范围内,产品公差越大,越大钣金零件变化较大,所以你需要特别指出模型中描述,什么尺寸是关键部分,需要做的,是什么尺寸,需要控制,显示清晰。

　　In the design of whether model C is reasonable and controllable, usually the standard tolerance is in the range of 0.5 to 1.5. The larger the product tolerance is, the greater the change of sheet metal parts is. Therefore, you need to specially point out what size is the key part, what needs to be done, what size needs to be controlled and displayed clearly in the model.

　　附件的数量是否有遗漏?不要在那个时候安装它们。

　　Are the number of accessories missing? Do not install them at that time.

　　2. 设计检查

　　2. Design inspection

　　A.外观模型到手后，进行设计判断，外形是否美观，拆卸比例是否协调，表面处理是否合理等外观检查。

　　A. after the appearance model is in hand, conduct design judgment, appearance inspection such as whether the appearance is beautiful, whether the disassembly proportion is coordinated, and whether the surface treatment is reasonable.

　　B.结构模型到手后，需要确定装配后是否存在结构设计缺陷，是模型加工造成的还是结构设计造成的。例如，卡环设计为0.4，实际装配后非常松。然后有必要确定模型处理是否不到位，导致卡环减小，所以卡环很松，还是卡环臂力太长太弱，需要检测。

　　B. after the structural model is in hand, it is necessary to determine whether there are structural design defects after assembly, whether caused by model processing or structural design. For example, the snap ring is designed to be 0.4, which is very loose after actual assembly. Then it is necessary to determine whether the model processing is not in place, resulting in the reduction of the snap ring, so the snap ring is very loose, or the strength of the snap ring is too long and weak, which needs to be detected.

　　C.对材料的厚度，以及板材的变形和强度进行测试。还应检测和考虑钣金件加工变形引起的装配问题。是设计中没有考虑加工变形导致的装配问题，还是模型工厂加工导致的产品变形?

　　C. test the thickness of the material, as well as the deformation and strength of the plate. The assembly problems caused by the deformation of sheet metal parts should also be detected and considered. Is the assembly problem caused by machining deformation not considered in the design, or the product deformation caused by model factory machining?