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Precision sheet metal working process.
- Apr 24, 2018 -

First: design and draw the parts drawing of the sheet metal parts, also called three views, whose function is to express the structure of the sheet metal parts by drawing.

The second is to draw the expansion diagram, which is to expand a complex part into a flat piece.

Thirdly, there are many ways to lower the material.

Fourth: turn over the edge tapping, turn over and call the hole, which is to draw a slightly larger hole on a smaller base hole, and then tapping on the hole. This will increase the strength and avoid sliding teeth.

Fifth: punch processing, general punch processing of the punch, punching, blanking, punching bag, punching, punching and other processing methods, to achieve the purpose of processing.

Sixth: pressure riveting, riveting in terms of the factory, often used with pressure riveting screw, pressure riveting nut, pressure riveting screws, etc., and its means of pressure riveting usually by press or hydraulic pressure riveting machine to complete the operation, the riveting to the sheet metal parts.

Number seven: bending and bending is to fold a 2D flat piece into a 3D part. Its processing needs to have the folding bed and the corresponding bending die to complete the operation. It also has a certain bending order, its principle is that the next knife does not produce interference first, will produce interference after the fold.

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

Ninth: surface treatment, surface treatment generally have phosphide film, electroplated colorful zinc, chromate, baking paint, oxidation and so on.