Stainless steel sheet metal processing process?

1, material: there are various ways of material, mainly the following ways ①. Shear bed: is the use of shear bed shear strips of simple material, it is mainly for the mold drop forming preparation processing, low cost, accuracy below 0.2, but can only be processed without holes without cutting angle of the strips or blocks of material. ②. Punching machine: is the use of punching machine in one step or more steps in the plate will be unfolded after the parts of the flat pieces of blanking forming various shapes of material, the advantages of its short time-consuming labor, high efficiency, high precision, low cost, applicable to mass production, but to design molds. ③. NC numerical control undercutting, NC undercutting first of all to write CNC machining program, the use of programming software, will draw the unfolding of the map is written into the NC number of pull processing machine tools can be recognized program, so that according to these programs step by step a knife in the flat plate blanking the shape of the flat piece, but its structure by the structure of the cutting tool to, low cost, accuracy of 0.15. ④. Laser undercutting, is the use of laser cutting, in the large flat plate will be cut out the structure of the flat plate shape, with NC undercutting the same need to write laser program, it can be under a variety of complex shapes of the flat plate pieces, high cost, accuracy of 0.1. ⑤. Sawing machine: mainly used for aluminum profiles, square tubes, tubes, round bars and so on, low cost, low precision. 1. Clamping: countersinking, tapping, reaming, drilling countersinking angle of 120 ° C for pulling the rivets, 90 ° C for countersinking the head screws, tapping the bottom hole of the British system. 2. Turning: also known as the extraction of holes, flipping holes, that is, a smaller base hole is extracted into a slightly larger hole, and then tapping, mainly used for sheet metal plate with a thin thickness of relatively thin Processing, to increase its strength and the number of threaded turns, to avoid slippery teeth, generally used for thinner plate thickness, the hole circumference of the normal shallow flap, the thickness of the basic unchanged, allowing the thickness of the thinning of 30-40%, can be obtained than the normal flap height of the height of the big high 40-60% with the extrusion of thinning 50%, can get the maximum height of the flap, when the plate is thicker, such as 2.0, 2.5 and so on above the thickness of the plate, can be directly 3. Punching: is the use of mold molding process, general punching processing of punching, cutting corners, drop, punching convex package (bumps), punching tearing, drawing holes, forming and other processing methods, its processing needs to have the appropriate mold to complete the operation, such as punching drop mold, convex package mold, tearing mold, drawing holes in the mold, molding die, etc., the operation of the main attention to the location, directionality. 4. Pressure Riveting: Pressure riveting in the context of the Company. Mainly riveting nuts, screws, loose, etc., which is a hydraulic riveting machine or press to complete the operation, riveted to the sheet metal parts, there are also riveting mode, need to pay attention to the directionality of the. 5. bending; bending is a flat piece of 2D, bending parts into D. The processing needs to have a folding machine and the corresponding folding machine and molding die, the operation is mainly to pay attention to the location, directionality. 5. bending; bending is 2D flat pieces, folded into D. Its processing needs to have a folding bed and the corresponding bending molds to complete, it also has a certain bending order, the principle is that the next knife does not interfere with the first folding, will produce interference after the fold. l bending strip is T = 3.0mm 6 times the thickness of the plate below the calculation of the groove width, such as: T = 1.0, V = 6 .0 F = 1.8, T = 1.2, V = 8, F = 2.2, T = 1.5, V = 10, F = 2.7, T = 2.0, V = 12, F = 4.0 l bending machine tool classification, straight knife, curved knife (80 ℃, 30 ℃) l aluminum plate bending, cracks, can increase the width of the lower die groove type to increase the upper die R (annealed to avoid cracks) l bending considerations: Ⅰ map surface, the required thickness of the plate, the number of Ⅱ bending direction Ⅲ bending angle; Ⅳ bending dimensions; Ⅵ appearance, chromium plating material parts are not allowed to have a folding mark. Bending and riveting process relationship, in general, the first riveting after bending, but there are pieces of riveting will interfere with the first folding pressure, and some need to be bent - riveting - and then bending process. 6. Welding: Welding: Welding Definition: Welded material atoms and molecules from the distance from the lattice of Kinda lattice distance to form a one-piece ① Classification: a Melting Welding: TIG welding, CO2 welding, gas welding, manual welding b Pressure Welding: Pressure Welding: TIG welding, gas welding, manual welding, welding, welding, welding, welding, welding, welding. Welding, manual welding b pressure welding: spot welding, butt welding, bump welding c brazing: electro-chrome welding, copper wire ② Welding methods: a CO2 gas shielded welding b argon arc welding c spot welding, etc. d robot welding welding welding method selection is based on the actual requirements and materials, generally speaking, CO2 gas-shielded welding used for iron plate type welding thrust; argon arc welding for stainless steel, aluminum plate type welding on the robotic welding, can save man-hours, improve Robot welding can save working hours, improve work efficiency and welding quality, reduce work intensity. ③ Welding symbols: Δ Angle Welding, Д, I welding, V welding, single-sided V welding (V) with a blunt edge V welding (V), spot welding (O), plug welding or groove welding (∏), crimp welding (χ), with a blunt edge of the single-sided V welding (V), with a blunt edge of the U welding, with a blunt J welding, sealing weld, 逢焊④ Arrowhead lines and joints ⑤ Welding defects and their preventive measures lost spot welding: not enough strength can be hit the bumps, imposed welding Area CO2 welding: high productivity, low energy consumption, low cost, strong resistance to rust Argon arc welding: shallow depth of dissolution, slow dissolution speed, low efficiency, high production costs, with tungsten folder defects, but has the advantage of better weld quality, can be welded to non-ferrous metals, such as aluminum, copper, magnesium and so on. ⑥ Welding deformation causes: welding preparation is not enough, need to increase the fixture welding fixture bad to improve the process of welding order is not good ⑦ Welding deformation effect positive method: flame effect positive method vibration method hammering method artificial time effect method

More about engineering/service/procurement category of the bidding writing production, to enhance the rate of winning the bid, you can click on the bottom of the official website of the customer service for free advice:/#/?source=bdzd