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Sheet Metal Processing Requirements
- Jun 13, 2017 -

With the development of today's society, sheet metal industry also with the rapid development, now sheet metal involved in all walks of life, for any sheet metal, it has a certain process, that is, the so-called process, to understand the sheet metal processing process, the first to know the selection of sheet metal materials.

Selection of sheet metal processing materials

Sheet metal processing commonly used materials have cold-rolled plate (SPCC), hot-rolled plate (SHCC), galvanized plate (SECC, SGCC), copper (CU) brass, copper, beryllium, aluminum plate (6061, 6063, hard aluminum, etc.), aluminum, stainless steel (mirror, wire drawing surface, fog), according to the role of different products, Sheet Metal Fabrication the selection of different materials, the general need for the use of products and costs to consider.

1. Cold-rolled sheet SPCC, mainly electricity and baking paint parts, low cost, easy molding, material thickness Sham. 2mm.

2. Hot-Rolled plate SHCC, Material T 3.0mm, is also electroplating, baking paint pieces, low cost, Sheet Metal Fabrication but difficult to shape, mainly with flat pieces.

3. Galvanized sheet SECC, SGCC. SECC Electrolytic Plate is divided into n material, p material, n material is mainly not for surface treatment, high cost, Sheet Metal Fabrication p material used for spraying parts.

4. Copper, the main use of conductive material, the surface treatment is nickel, chrome, or not treatment, high cost.

5. Aluminium plate; surface chromate (J.11-A), oxidation (conductive oxidation, chemical oxidation), high cost, silver plated, nickel plated.

6. Aluminum section, complex cross-section structure of the material, Sheet Metal Fabrication a large number of boxes. Surface treatment with aluminum plate.

7. Stainless steel, mainly used for no surface treatment, high cost.

Surface audit, to write a part of the process, first of all to know the various technical requirements of the part diagram, then the surface audit is the most important part of the process of the parts.

1. Check to see if the surface is complete.

2. The graph Surface view relations, Sheet Metal Fabrication the annotation is clear, is complete, the dimensioning size unit.

3. Assemble the relationship and assemble the required key dimensions.

4. New and old layout surface difference.

5. Translation of a foreign language map.

6. Table code Conversion.

7. Surface problem feedback and place embedding.

8. Materials

9. Quality requirements and process requirements

$number. The official distribution plan shall be stamped with quality control.

Sheet metal processing process, according to the sheet metal structure differences, Sheet Metal Fabrication the process can be different, but the total does not exceed the following points.

Blanking: There are various ways of discharging, there are several ways

①. Shearing: Is the use of shearing shear strip simple material, it is mainly for the mold blanking forming preparation, low cost, accuracy of less than 0.2, but can only be machined without holes without cutting corner of the bar or block material.

②. Punching machine: Is the use of punching step or more in the plate on the part of the plate after the expansion of a variety of shape material stamping parts, its advantages are short hours, high efficiency, high precision, low cost, suitable for mass production, but to design molds.

③. NC Numerical Control, NC blanking, the first to write NC processing program, using programming software, the drawn expansion diagram is programmed to be recognized by the NC machining machine tool, which is used to punch the flat plate on the plate according to these programs, but its structure is affected by the tool structure, the cost is low and the precision is 0.15.

④. Laser cutting, is the use of the beam, on the large flat plate of the structure of the shape of the cutting out, the same as NC to write a laser program, Sheet Metal Fabrication it can be under a variety of complex shapes of flat pieces, high cost, precision of 0.1.

⑤. Sawing machine: The main use of aluminum profiles, square, drawing tube, round bar material, such as low cost, low precision.

Fitter: Sinking hole, tapping, reaming, drilling