Sheet metal processing operation process of Dongguan sheet metal processing factory
by：QY Precision 2020-03-03
Sheet metal processing operation process of Dongguan sheet metal processing factory _ sheet metal processing is an important process for sheet metal product forming, it includes cutting, punching/cutting/compounding, folding, welding, riveting, splicing, forming (Such as car body)Wait.
For any plate, sheet metal processing has a certain process, so the difference between sheet metal processing may be different, we can see from the following points.
The first point: planning and drawing its sheet metal parts map, also known as the three views.
The effect is the method of painting to express its own sheet metal structure.
The second point: Drawing review to write the skill flow of the parts, the first thing to know is the various skill requests of the parts map;
Then drawing Review is the most important link in writing part skill flow.
The third point: there are mainly the following methods for data cutting: 1 cutting bed: It is a simple material that uses the cutting bed to cut the strip material. It is mainly prepared for the mold blanking forming, with low cost and low precision.
2, but can only process non-hole and non-cutting strips or blocks.
(2) punching machine: punching machine is used to punch and form various shapes of materials in one or more steps after the plate General parts are opened. Its advantages are short working hours, high efficiency and high precision, low cost, suitable for mass production, but planning molds.
The fourth point: flanging and tapping, also known as drawing holes, is to draw a slightly larger hole on a smaller base hole and then tapping on the drawing hole. This can add its strength and avoid sliding teeth. Usually used for sheet metal processing with thin plate thickness contrast. When the thickness of the plate is large, such as 2. 0, 2.
5 or more of the thickness of the plate, we can directly tapping, no need to turn over.
The fifth point: punching machine processing usually has punching cutting angle, punching and blanking, punching convex bag, punching and tearing, drawing holes and other processing methods to reach the processing intention.
The processing requirements have corresponding molds to complete the operation.
There are convex packing dies for punching convex packing, tearing forming dies for punching and tearing, etc.
The sixth point: acrylic as far as the factory is concerned, there are often acrylic studs, acrylic nuts, acrylic screws, etc. The acrylic method is usually completed by punching press or hydraulic riveting machine, riveting it onto sheet metal parts.
Point 7: bending and bending is to fold 2D flat parts into 3D parts.
The processing requirements include folding bed and corresponding bending die to finish the operation.
It also has a certain bending order, and its principle is to fold the knife first without drying it, and then fold it after drying it.
Point 8: welding is to weld multiple parts together to reach the intention of processing or to weld individual parts at the edge to add their strength.
The processing methods are usually the following: CO2 gas maintenance welding, argon arc welding, spot welding, robot welding, etc.
The selection of these welding methods is based on practical requirements and raw materials.
Generally speaking, CO2 gas maintenance welding is used for iron plate welding; Argon arc welding is used for aluminum plate welding;
Robot welding is mainly used when the material is large and the weld is long.
Such as cabinet welding, robot welding can be used, which can save many missions and improve work efficiency and welding quality.
Point 9: external treatment the external Treatment usually includes phosphating film, electroplating color zinc, chromium, baking varnish, oxidation, etc.
Phosphating film is usually used for cold rolled plates and electrolytic plates, and its effect is mainly to coat a layer of maintenance film on the material sheet to avoid oxidation; Then it can enhance the adhesion of its paint.
Electroplating color zinc is usually treated with cold rolled sheet appearance;
Chromium sulfate and oxidation are usually used for exterior treatment of aluminum plates and aluminum profiles;
The selection of the detailed appearance processing method is based on the customer's request.