钣金加工行业通常具有批量小、品种多的特征，机箱外壳正是应用了这种特征，钣金加工质量非常难控制，若要把握产品加工质量，须掌握以下几点：

The sheet metal processing industry usually has the characteristics of small batches and multiple varieties. This feature is precisely applied to the chassis casing, and the sheet metal processing quality is very difficult to control. To grasp the product processing quality, it is necessary to grasp the following points:

当我们接到机箱外壳的订单时一定要做了解，比如，用户对其产品的外观要求，尺寸要求，以及产品用途等。

When we receive an order for a chassis shell, we must have a comprehensive understanding, such as the user's requirements for the appearance, size, and purpose of the product.

了解完用户对产品的需要，我们根据不用用户的产品选择不同的工艺，同时在设计图纸中说明注意事项。讲图纸拿到工程部进行制作工艺图，工艺员画好图纸要经过另外员工检查，待检查完毕后要经过签字确认后发给车间。

After understanding the user's needs for the product, we choose different processes based on the products of different users, and note the precautions in the design drawings. Take the drawings to the Engineering Department for production of process drawings. After the technician draws the drawings, they must be inspected by another employee. After the inspection is completed, they must be signed and confirmed before being sent to the workshop.

数控下料，数控下料首件要进行过全检，（数控冲，金属激光切割机等）下料的工件进行检查，包括尺寸，展开等。大批量生产时必须全部首件检验合格了才能批量生产。

CNC blanking: The first piece of CNC blanking must undergo a full inspection. (CNC punching, metal laser cutting machines, etc.) The workpiece to be blanking must be inspected, including dimensions, unfolding, etc. During mass production, all first article inspections must be passed before mass production can be conducted.

折弯时要对折弯方向及折弯尺寸进行首件确认，确认完毕后开始批量生产，更换操作工或更换模具时要重新检验。完成品，对焊接完成品或折弯完成品根据图纸要求对尺寸进行抽样检查，抽样检查时要对每个尺寸进行确认。同时要对外观进行全检，对不合格的要及时调整，再次检查。同时填写检验报告单。

During bending, the bending direction and bending size should be confirmed for the first piece. After confirmation, batch production should be started. When changing the operator or mold, a new inspection should be conducted. For finished products, sampling inspection shall be conducted for the size of finished welding or bending products according to the drawing requirements, and each size shall be confirmed during sampling inspection. At the same time, conduct a full inspection of the appearance, and timely adjust and recheck the unqualified parts. Fill in the inspection report at the same time.

表面处理，对表面处理的产品外观进行全检。发货，未通过检验的产品不得发货。首件要求操作工报检，完成品同样有操作工报检，检验合格后有检验员签字后才能人库。如操作工不报检，此批产品没有工费。虽然客户的订单急，忽必保证较高品质，较快速度的钣金加工理念。

Surface treatment: conduct a full inspection of the appearance of the surface treated product. Shipment. Products that have not passed the inspection shall not be shipped. The first article requires an operator to apply for inspection, and the finished product also requires an operator to apply for inspection. After passing the inspection, the inspector can sign before entering the warehouse. If the operator does not apply for inspection, there will be no labor cost for this batch of products. Although the customer's order is urgent, it is necessary to ensure a high quality and faster sheet metal processing concept.

现在的钣金加工产品越来越多，如何去分辨钣金加工产品的优劣是我们必要的技能。

Nowadays, there are more and more sheet metal processing products, and how to distinguish the advantages and disadvantages of sheet metal processing products is a necessary skill for us.

因为机箱外壳直接关系到美观、坚固以及工艺的展现，性能尤为重要，我们对机箱外壳的整体规划与设计，在保证良好的效果同时要特别重视性能。更多相关内容就来我们网站http://www.metferro.com咨询吧！

"Because the chassis shell is directly related to the presentation of aesthetics, robustness, and craftsmanship, safety performance is particularly important. Our overall planning and design of the chassis shell should pay special attention to safety performance while ensuring good results.". For more relevant content, please visit our website http://www.metferro.com Consult!