Metal plate processing is called sheet metal processing. For example, the use of sheet metal production of chimneys, iron Sheet Metal Fabrication drums, tank oil tank, ventilation pipes, elbow size head, Tianyuan place, funnel-shaped, the main process is cut, bending buckle, bending, welding, riveting, etc. A certain geometric knowledge. Sheet metal parts is the sheet metal, that is, can be stamping, bending, stretching and other means to process the parts, a general definition is the processing of the thickness of the same parts. Corresponding to the casting, forging parts, machined parts and so on.
Each industry has its professional terms, metal plate processing industry is no exception. There are 25 common. (1) pressure riveting: refers to the use of punch or hydraulic press the riveting nut, riveting screw or rivet nut studs and other fasteners firmly pressed on the workpiece on the process. (2) up riveting: refers to the first part of the workpiece counter-hole, and then use the punch or hydraulic machine to rivet nut firmly pressed on the workpiece in the process. (3) pull mother: refers to the use of similar riveting process. The process of firmly connecting the connecting members such as rivet nut (POP) to the workpiece with a pull gun. (4) pull riveting: refers to the use of a rivet gun as a tool to pull nails Sheet Metal Fabrication to two or more pieces of work together closely together the process. (5) riveting: rivets will be two or more workers face to face together with the process, if the countersunk head riveting, the workpiece must be first counter-hole. (6) cut angle: refers to the punch or hydraulic machine using the mold on the workpiece angle to remove the process. (7) Bend: refers to the workpiece by the bending machine molding process. (8) forming: refers to the ordinary punch or other equipment on the use of mold deformation of the workpiece process. (9) cut material: refers to the material through the cutting plate machine to get a rectangular workpiece process. (10) cutting: refers to the workpiece after LASER cutting or CNC punch punching process. (11) blanking: refers to the ordinary punch or other equipment on the use of mold processing products to shape the process. (12) Punching: refers to the workpiece from the ordinary punch and die processing hole of the process. (13) red convex package: refers to the punch or hydraulic machine with the mold to form a convex shape of the process. (14) rushing tear: also known as "red bridge", refers to the punch or hydraulic machine with the mold to form a bridge like the shape of the process. (15) pumping hole: also known as "flanging", refers to the ordinary punch or other equipment on the use of molds on the workpiece to form a round hole side of the process. process. (16) tapping: refers to the workpiece in the processing of internal thread process. (17) leveling: refers to the workpiece before and after processing is not flat, the use of other equipment to smooth the workpiece process.
(SPCC), hot rolled sheet (SHCC), galvanized sheet (SECC, SGCC), copper (CU) brass, copper, beryllium, beryllium Copper, aluminum (6061,6063, hard aluminum, etc.), aluminum, stainless steel (mirror, drawing surface, matte), according to the role Sheet Metal Fabrication of different products, different materials, generally from the use of its products and cost considerations. 1. Cold rolled plate SPCC, mainly with electroplating and paint pieces, low cost, easy to shape, material thickness ≤ 3.2mm. 2. Hot rolled sheet SHCC, material T ≥ 3.0mm, is also used electroplating, paint pieces, low cost, but difficult to form, mainly with flat parts. 3. Galvanized sheet SECC, SGCC. SECC electrolytic plate sub-N material, P material, N material is not the main surface treatment, high cost, P material for spraying. 4. Copper; the main use of conductive materials, the surface treatment is nickel, chrome, or not for processing, high cost. 5. Aluminum plate; general use of surface chromate (J11-A), oxidation (conductive oxidation, chemical oxidation), high cost, silver plating, nickel plating. 6. Aluminum; cross-sectional structure of the complex material, a large number of used in a variety of boxes. Surface treatment with aluminum. 7. Stainless steel; the main use of no surface treatment, high cost.
Metal plate processing process: According to the difference between the structure of sheet metal, the process can be different, but the total does not exceed the following points. 1, cutting: cutting a variety of ways, mainly in the following ways ①. Shearing: is the use of shearing shear material simple material, it is mainly for the blank blanking material ready to process, low cost, accuracy of less than 0.2, but can only be processed without holes without cutting the strip or block material. ②. Punch: the use of punch or more step or more steps in the plate after the expansion of the flat parts of the plate forming a variety of shapes and pieces of materials, the advantages of short labor costs, high efficiency, high precision, low cost, suitable for mass production, But to design the mold. ③. NC NC cutting, NC cutting the first time to Sheet Metal Fabrication write CNC machining program, the use of programming software, the drawing will be compiled into NC number drawing machine can identify the program, according to these programs step by step in the flat punch Shaped flat plate, but its structure by the tool structure to the low cost, accuracy of 0.15. ④. Laser cutting, is the use of laser cutting, cutting the flat plate in the shape of its structure cut out, with the NC cutting the same need to write a laser program, it can be under a variety of complex shape of the plate, high cost, ⑤. Saw: the main use of aluminum, square tube, tube, round bar and the like, low cost, low precision. 1. Fitter: tapping, tapping, reaming, drilling hole angle is generally 120 ℃, for pull rivets, 90 ℃ for countersunk head screws, tapping British bottom hole.