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Dalian Jinzhou Tengda Metal Components Co.,Ltd.

P.C:116100 

TEL:0411-87840058

         0411-87840166 

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Add:No.558, Jinwan Road, Jinzhou District, Dalian, Liaoning

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Sheet metal basic knowledge introduction

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Sheet metal basic knowledge introduction

Release date:2017-10-19 Author:Source Network Click:

1, sheet metal overview

Sheet metal is a sheet metal processing products. Dalian sheet metal member by filament winding, laser cutting, heavy duty, metal bonded, metal drawing, plasma cutting, precision welding, roll forming, sheet metal bending, forging, water jet cutting, precision welding to produce of.

Sheet metal definition: Sheet metal is a comprehensive cold-working process for sheet metal (usually below 6mm), including shearing, punching / cutting / compounding, folding, welding, riveting, splicing, forming such as automobile bodies. The salient feature is the same part thickness.

2, sheet metal features

Sheet metal parts are widely used in the fields of electronic appliances, communications, automotive industry and medical equipment due to their light weight, high strength, electrical conductivity (which can be used for electromagnetic shielding), low cost and large-scale mass production performance. For example, In the computer chassis, cell phones, MP3, sheet metal parts are an integral part.

With the application of sheet metal more and more widely, the design of sheet metal has become a very important part of the product development process, mechanical engineers must master the design skills of sheet metal, making the design of sheet metal not only meet the product Function and appearance requirements, but also makes stamping die manufacturing simple, low cost.

3, sheet metal materials

(1) ordinary cold-rolled sheet SPCC

SPCC refers to the steel ingot through the cold rolling mill continuous rolling into the required thickness of steel coil or sheet material. SPCC surface without any protection, exposed to the air can be easily oxidized, especially in humid environments accelerated oxidation, the emergence of dark red rust, the use of the surface to paint, plating or other protection.

(2). Galvanized steel SECC

SECC substrate for the general cold-rolled coil, galvanized in the continuous galvanized line after degreasing, pickling, electroplating and various post-processing process, which became electrogalvanized products. SECC not only has the general cold-rolled steel mechanical properties and approximate processibility, but also has excellent corrosion resistance and decorative appearance. In the electronics, home appliances and furniture market has great competition and substitutability. For example, the computer chassis is commonly used SECC.

(3) hot-dip galvanized steel SGCC

Hot-dip galvanized steel coil refers to the hot-rolled pickling or cold-rolled semi-finished products, after cleaning, annealing, immersed in a molten zinc bath temperature of about 460 ° C, and the steel plate coated with zinc, and then quenched Leveling and chemical treatment. The SGCC material is harder than the SECC material with poor ductility (avoiding deep draw design), a thicker zinc coating and poor weldability.

(4). Stainless steel SUS301

Cr (chromium) content lower than SUS304, corrosion resistance is poor, but after cold work can get good tensile strength and hardness, better elasticity, and more for the leaf spring and anti-EMI.

(5) Stainless steel SUS304

One of the most widely used stainless steels, due to Ni-containing steels, is more corrosion-resistant and heat-resistant than Cr-containing steels and possesses very good mechanical properties, no heat treatment, and no elasticity.

4, sheet metal design In meeting the requirements of the product's function, appearance and other requirements, sheet metal design should ensure that the stamping process is simple, easy stamping die making, sheet metal stamping high quality, dimensional stability.

5, sheet metal equipment

Sheet metal parts factories generally include basic equipment such as Shear Machine, CNC Punching Machine / Laser, Plasma, Laser, Plasma, Waterjet Cutting Machine / Combination Machine, Bending Machine and a variety of auxiliary equipment such as: uncoiler, leveling machine, deburring machine, spot welding and so on.

6, processing steps

Often, the three most important steps in sheet metal manufacturing are cutting, punching, cutting and folding. Sheet metal is sometimes used as a pull-in metal. The term is derived from the English sheet metal. Plastic sheet metal is usually plastically deformed by hand or die stamping to form the desired shape and size, and can be further processed by welding or a small amount of mechanical Processing to form more complex parts, such as the chimneys commonly used in the home, tin stove, as well as automotive shell are sheet metal parts. Sheet metal processing is called sheet metal processing. Specific use, for example, the production of chimneys, iron drums, tank oilers, ventilation ducts, elbow size head, round place, funnel-shaped, the main process is cutting, bending buckle, bending, welding, riveting, etc. Certain geometric knowledge. Sheet metal is the sheet metal hardware, that is, by stamping, bending, stretching and other means to processing parts, a general definition is in the processing of the same thickness of the parts. Corresponding to the casting, forging, Machining parts, such as car outside the shell is sheet metal parts, stainless steel do some kitchenware is sheet metal parts.

7, sheet metal technology

Modern sheet metal comprising: a filament winding, laser cutting, heavy duty, metal bonded, metal drawing, plasma cutting, precision welding, roll forming, sheet metal bending, forging, water jet cutting, welding precision . 3D software, SolidWorks, UG, Pro / E, SolidEdge, TopSolid and so has a sheet metal parts, mainly through the 3D graphics editing and sheet metal processing required to obtain the data (such as expansion plans, bending lines, etc. ) As well as providing data for CNC Punching Machines / lasers, plasma, Laser, Plasma, Waterjet Cutting Machines / Combination Machines and CNC Bending Machines.

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