How to improve the production efficiency of sheet metal parts during sheet metal processing 1, stainless steel, mainly used without any surface treatment, high cost. 2, hot rolled plate SHCC, material T≥3.0mm, also use electroplating, paint parts, low cost, but difficult to form, mainly use flat parts. 3, galvanized sheet SECC, SGCC. SECC electrolytic plate N material, P material, N material is not mainly surface treatment, high cost, P material for spraying parts.   4, copper; Mainly with conductive materials, its surface treatment is nickel plating, chromium plating, or no treatment, high cost. 5, aluminum plate; General surface chromate (J11-A), laser sheet metal processing oxidation (conductive oxidation, chemical oxidation), high cost, silver plating, nickel plating. 6, aluminum profile; Materials with complex cross section structure are widely used in various boxes. Surface treatment with aluminum plate. 7, cold rolled SPCC, mainly used in electroplating and paint parts, low cost, easy to form, material thickness ≤3.2mm. General sheet metal processing bending plate 90 degrees are needed by the pressure inside the plane v-shaped groove, so the relationship between them is tooling plane v-shaped groove processing also can saying is a process with the sheet metal processing, some sheet metal products (material thickness thicker) bending after R Angle is too large is not beautiful, sheet metal processing and so on the bending plane V groove (the thin thickness plane), V-shaped plane groove has two functions: one is to reduce the bending Angle, the general sheet metal bending Angle is equal to the thickness of the plate, if the workpiece bending Angle is less than the thickness of the plate, you need to plane v-shaped groove; Two is to reduce the bending force sheet metal processing plant, when the bending force of the workpiece is greater than the tonnage of the bending machine and can not be bent, you can plane v-shaped groove to reduce the bending force. 1. Blanking: There are various blanking methods, mainly in the following ways. (1), punch: is the use of punch in one step or more steps in the plate will be parts of the plate after blanking forming various shapes of materials and parts, its advantage is the cost of short hours, high efficiency, high precision, low cost, suitable for mass production, but to design the mold. ②, shearing machine: is the use of shearing machine shear strip simple materials, it is mainly for mold blanking forming preparation processing, low cost, accuracy is less than 0.2, but can only be processed without holes without cutting Angle strip or block. (3) laser blanking, is the use of laser cutting, in the large plate will be cut out of the structure of the plate shape, the same as NC blanking need to write laser program, it can be a variety of complex shape of the plate, the cost is high, the accuracy of 0.1.   (4), NC NC blanking, the first to write all NC blanking NC machining program, using the programming software, pull map of writing into a number of NC machine tool can identify the program, make it according to the program step one knife in suzhou, sheet metal processing on the flat shape of cutting of the flat, but its structure by the cutting tool structure, low cost, precision at 0.15. ⑤, sawing machine: mainly used under aluminum profile, square tube, diagram tube, round bar material, low cost, precision.