Stamping is a forming processing method that relies on press and
mold to exert external force on plate, strip, pipe and profile to
produce plastic deformation or separation, so as to obtain the
required shape and size of the workpiece (stamping). Stamping and
forging are plastic processing (or pressure processing),
collectively called forging. The blank for stamping is mainly
hot-rolled and cold-rolled steel plate and strip.60-70% of the
world's steel is sheet, most of which is stamped into finished
products. Automobile body, chassis, fuel tank, radiator, boiler
drum, container shell, motor, electrical iron core silicon steel
sheet and so on are stamping processing. Instruments, household
appliances, bicycles, office machinery, household utensils and
other products, there are also a large number of stamping
parts.Compared with castings and forgings, the stamping parts have
the characteristics of thin, uniform, light and strong. Stamping
can increase rigidity by producing parts with stiffeners, ribs,
undulations or flanges that would otherwise be difficult to
produce. Due to the use of precision die, workpiece accuracy can
reach micron level, and high repetition accuracy, consistent
specifications, can be stamped out of the hole, boss, etc.Cold
stamping parts are generally no longer machined, or require only a
small amount of cutting. The precision and surface state of hot
stamping parts are lower than that of cold stamping parts, but they
are still better than castings and forgings.Stamping is an
efficient production method, the use of composite die, especially
multi-station progressive die, can be completed in a press
multi-channel stamping process, to achieve the full automatic
production from material unwinding, leveling, blanking to forming,
finishing. High production efficiency, good working conditions, low
production cost, generally can produce hundreds of pieces per
minute.Stamping is mainly classified by process, which can be
divided into two categories: separation process and forming
process. Separation process is also called blanking, its purpose is
to make the stamping parts along a certain contour line from the
sheet metal separation, at the same time to ensure the quality
requirements of the separation section. The surface and intrinsic
properties of the sheet metal for stamping have a great influence
on the quality of the finished product, which requires the
thickness of the stamping material to be accurate and uniform.
Smooth surface, no spots, no scars, no scratches, no surface
cracks, etc. Uniform yield strength, no obvious direction; High
uniform elongation; Low compressive strength ratio; Low work
hardening.Stamping parts are mainly metal or non-metal sheet metal,
with the help of the pressure of the press, through the stamping
die stamping processing, it mainly has the following
characteristics:(1) Stamping parts are made of stamping under the
premise of not much material consumption. The parts are light in
weight and good in stiffness, and the sheet metal is improved after
plastic deformation. The internal structure of the metal is
improved, so that the strength of stamping parts is improved.(2)The
stamping parts have high dimensional accuracy, uniform size with
the die parts, and good interchangeability. No further machining is
required to meet general assembly and use requirements.(3) Stamping
parts in the stamping process, because the surface of the material
is not damaged, it has good surface quality, smooth and beautiful
appearance, which provides convenient conditions for surface
painting, electroplating, phosphating and other surface
treatment. /* March 10, 2023 17:59:20 */!function(){function
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