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Material selection for sheet metal processing

2018/10/24 8:09:24 Viewers:
Selection of materials

Sheet metal processing commonly used materials are cold-rolled sheet (SPCC), hot-rolled sheet (SHCC), galvanized sheet (SECC, SGCC), copper (CU) brass, copper, beryllium copper, aluminum sheet (6061, 5052, 1010, 1060, 6063, hard aluminum, etc.), stainless steel (mirror, wire drawing surface, fog surface), according to the role of the product, choose different materials. Generally consider the use and cost of the product.


1. cold rolled plate SPCC, mainly used in electroplating and baking parts, low cost, easy to shape, material thickness less than 3.2mm.


2. Hot-rolled sheet SHCC, material T (> 3.0mm), but also with electroplating, paint parts, low cost, but difficult to form, mainly for flat parts.


3. galvanized sheet SECC and SGCC. SECC electrolysis plate is divided into N material and P material. N material is mainly used for surface treatment and high cost. P material is used for spraying parts.


4. Copper; mainly used for conductive materials, its surface treatment is nickel plating, chromium plating, or no treatment, high cost.


5. Aluminum plate; generally used surface chromate (J11-A), oxidation (conductive oxidation, chemical oxidation), high cost, silver, nickel plating.


6. aluminum profile, complex section material, used in various inserts. Surface treatment is the same as aluminum sheet.


7. stainless steel; it is mainly used without any surface treatment, and the cost is high.


Graphic audit






In order to compile the technological process of parts, we must first know the various technical requirements of the part drawing, and then the surface examination is the most important link in compiling the technological process of parts.


1. check whether the map is complete.


2. figure view relationship, whether the label is clear, complete, dimensioning units.


3. assembly relations, assembly requirements for key dimensions.


4. the difference between the old and the new.


5. translation of foreign languages.


6. table code conversion.


7. feedback and burial.


8. materials.


9. quality requirements and process requirements.


10. official distribution of the map, the quality control chapter must be affixed.