Precision Sheet Metal Processing Process
- Dec 27, 2017 -

First, the part drawing of the sheet metal parts is designed and drawn, which is also called the three view, the function of which is to express the structure of the sheet metal parts by drawing.


Second: draw the expansion map, which is to expand a complex part of the structure into a flat panel.


Third: there are many kinds of blanking.

Fourth: a flanged tapping and a flanging, called a pumping hole, is a slightly larger hole on a smaller base hole, and then tapping on the hole. This can increase the strength and avoid slipping.

Fifth: punch processing, general punch processing has punching and tangential angle, punching, blanking, punching convex hull, tearing, punching and other processing methods, in order to achieve the purpose of processing.

Sixth: pressure riveting, riveting pressure of this factory, riveted bolts are often used, pressure riveting nut, pressure riveting screws, the pressure riveting way through the press or hydraulic pressure riveting machine to complete the operation, the riveted to the sheet metal.

Seventh: bending, bending is the 2D plate, folded into 3D parts. The processing needs of the folding bed and the corresponding bending die to complete the operation. It also has a certain bending order, the principle is that the next knife does not produce the first fold of interference, which will produce the back break of interference.

Eighth: welding, welding is to weld a number of parts together to achieve the purpose of processing or to weld the side seam of a single part to increase its strength.

Ninth: surface treatment, surface treatment of general phosphating film, colorful zinc plating, chromate, paint, oxidation etc..