Sheet Metal Fabrication
Yutung has a metal sheet fabrication for metal stamping, metal deep-drawn and metal spinning process factory, our engineer has excellent experience with the problematic clients’ designed OEM and OEM parts, custom deep drawings metal brass aluminium stamping jobs, we are good at deep drawing, custom meta stamp, metal design stamp, custom made metal stamps, custom brass stamp, deep drawn metal stamping, deep drawn stainless steel, deep drawing aluminium, metal stamping brass, and other production metal stamping, continuous stamping, progressive stamping, bending, cold metal extruding part, copper or aluminium spinning parts. Also, we can design the mould for our client.
Material for our metal stamping, deep drawing and spinning process: iron, steel, stainless steel, aluminium, brass, aluminium alloy, etc.
Surface finish for stamp metal: yellow zinc plate, chrome-plating, nickel-plating, silver-plating.
We manufacture metal stamping parts according to the client’s drawings or samples.
The following is some knowledge for stamping (sheet metal fabrication):
Stamping and forging are plastic processing (or pressure processing), collectively known as forging. Metal Stamping is the method of forming and processing a workpiece (stamped part) of a desired shape and size by applying an external force to a plate, a strip, a pipe, a profile, and the like by a press and a die to cause plastic deformation or separation. Stamped blanks are mainly hot-rolled and cold-rolled steel sheets and strips. Of the steel in the world, 60 to 70% is sheet metal, most of which is by stamping process to finished products. The car’s body, chassis, fuel tanks, radiators, boiler steam drums, container shells, electric motors, and electrical appliances such as iron-core silicon steel sheets are processed. There are also many stamping parts in products such as instrumentation, household appliances, bicycles, office machinery, and household utensils.
Sheets, moulds and equipment are the three elements of stamping. Press processing is the use of conventional or special press equipment power so that the sheet material in the mould is directly affected by the deformation force and deformation to obtain a particular shape, size and performance of the production of parts of the technology. Press processing temperature has two types: hot stamping and cold stamping. The former is suitable for sheet metal processing with high deformation resistance and poor plasticity; the latter is carried out at room temperature and is a stamping method commonly used for sheet metal. It is one of the main methods of metal plastic processing (or pressure processing) and belongs to material-forming engineering technology.
The stamping die is called stamping die, or die. Dies are special tools for the batch processing materials (metal or non-metal) into the required stampings. Stamping is very important in the metal stamping process. There is no punching process to meet the requirements, and batch stamping production is difficult to carry out. Without advanced stamping, we can not realize the advanced stamping technology. Stamping processes and dies, stamping equipment, and materials constitute the three elements of stamping. Only when they are combined can stampings be obtained.
Metal Sheet Fabrication Factory Product Pictures
Metal Stamping is mainly classified according to process and can be divided into two major categories: separation and forming. The separation process is also referred to as blanking. Its purpose is to separate the stamped parts from the sheet material along a specific contour while ensuring the quality requirements of the separation section. The purpose of the forming process is to make the sheet plastically deform without breaking the blank to produce a workpiece of the desired shape and size. In actual production, various processes are often applied to one workpiece. Punching, bending, shearing, stretching, bulging, spinning, and rectification is several major stamping processes.
Separation Process
It is a basic stamping process that uses a mould to separate materials. It can be made into flat parts or prepared for other stamping processes such as bending, drawing, forming, etc. It can also be used for cutting, trimming, and creating stamped parts. Punching is widely used in automotive, home appliances, electronics, instrumentation, machinery, railways, communications, chemicals, light industry, textiles, aerospace and other industrial sectors. Stamping processing accounts for about 50% to 60% of the entire stamping process.
Forming Process
Bending Process
It is a basic stamping process that uses a mould to separate materials. It can be made into flat parts or prepared for other stamping processes such as bending, drawing, forming, etc. It can also be used for cutting, trimming, and creating stamped parts. Punching is widely used in automotive, home appliances, electronics, instrumentation, machinery, railways, communications, chemicals, light industry, textiles, aerospace and other industrial sectors. Stamping processing accounts for about 50% to 60% of the entire stamping process.
Deep Drawing Process
Deep drawing: Drawing, also known as drawing or calendering, is a method of punching a hollow part in which a flat blank obtained after blanking is opened by a die. With the drawing process, cylindrical, stepped, tapered, spherical, box-shaped, and other irregularly shaped thin-walled parts can be made. If it cooperates with other press-forming processes, it can also manufacture parts with highly complex shapes. In stamping production, there are many types of drawn elements. Because of its different geometrical characteristics, the deformation zone’s location, the deformation’s nature, the deformation’s distribution, and the stress state and distribution of the various parts of the billet have considerable, if not essential, differences. Therefore, the process parameters, number of processes, sequence determination methods, and mould design principles and methods are not the same. According to the characteristics of deformation mechanics, various drawing parts can be divided into four types: straight-wall rotating bodies (cylindrical pieces), straight-wall non-revolving bodies (box-shaped bodies), curved-surface rotating bodies (curved shape parts), and curved non-revolving bodies. Types of.
The pull-form is the tensile force exerted on the sheet by the pull-die so that the sheet material produces uneven tensile stress and a tensile strain, and then the sheet material and the pull-form die fitting surface gradually expand until they completely conform to the pull-form model surface. The functional objects of the pull-type are mainly double-curvature skins with certain plasticity, large surface area, mild and smooth curvature changes, and high-quality requirements (exact shape, smooth flow lines, and stable quality). Because of the relatively simple process equipment and equipment used for pulling, the cost is low, and the flexibility is excellent; however, the material utilization rate and productivity are low.
Metal Spinning
Metal Spinning is a metal rotary machining process. In the processing process, the blank rotates actively with the spinning die, or the spinning head rotates around the blank and the spinning die, and the spinning head performs the feeding movement relative to the core die and the blank so that the blank is continuously deformed locally to obtain the required hollow rotation body parts.
Metal Shaping
Shaping uses a given shape of the grinding tool for the second trim of the product’s shape. Mainly reflected in the pressure plane, bouncing feet and so on. For some materials, there is elasticity, which can not guarantee the quality of moulding the re-processing.
Metal Bulging
Bulging uses moulds to make the sheet thinner by increasing the local surface area to obtain parts. Commonly used are undulating forming, bulging cylindrical (or tubular) blanks and drawing forming of flat blanks. Bulging can be achieved using different methods, such as bulging, rubber, and hydraulic.
Metal Flanging
Flanging is a plastic processing method that bends the material of the narrow strip region of the edge of the prefabricated hole on the edge of the blank sheet or the billet into a vertical edge along a curve or a straight line. Flanging is mainly used to strengthen the borders of parts, remove trimmings, make parts assembled and connected with other elements on parts, or have three-dimensional pieces with complex specific shapes and reasonable space, and at the same time improve the rigidity of parts. It can also control cracks or wrinkles when forming large sheet metal. Therefore, it has been widely used in automotive, aerospace, aerospace, electronics and household appliances.
Metal Shrinkage
Shrinkage is a stamping method that reduces the diameter of the open end of an already stretched non-flange hollow member or blank. Before and after the shrinkage, the diameter of the workpiece end should not be changed too much. Otherwise, the end material will wrinkle due to the intense deformation caused by the compression. Therefore, necks that have been reduced in size from a larger diameter to a smaller diameter often require multiple retractions.
For more knowledge about this page process, please refer to The Library Manufacturing website, which has a more detailed professional explanation.
