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Article #7: What is Metal Stamping?

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Metal stamping is the process of cutting processes like piercing, blanking,
and shaping metal alloys into specific forming and drawing on the same machines.
forms, especially to be used as Stamping presses have specific force,
components for large machinery or speed and precision for giving a specific
structures. Metal sheets can be molded shape to the metal. There are two types
into different pre-determined shapes for of metal stamping presses: Mechanical and
use as regular products like pans and hydraulic. These are available in an
cans. The most common alloys that are extensive range of capacities, sizes,
used in metal stamping are steel, zinc, stroke lengths and operating speeds.
nickel, aluminum and titanium. Metal Metal stamping is slowly replacing other
stamping is a very cost-effective and metal forming processes like die casting,
productive way of producing many kinds of forging, fabricating and machining. One
metal products on a large scale. reason for this is the very low costs
In metal stamping, the metal sheets are involved in metal stamping. The dies used
placed in a die or a press tool that has for metal stamping cost less than those
a specially designed cavity that gives used in forging and casting. Also, the
the preferred shape to the metal sheet. metals used in metal stamping can be
The upper part of the die connects to the harder than those used in other
press slide while the lower component processes, thus making the end product
connects to the press bed. A specific stronger. The cost of the secondary
component known as the punch pushes the processes, like cleaning and plating are
metal sheet through the die, thus also considerably reduced.
performing the actual shaping operation. Moreover, there are certain products that
After pressing, the metal is plated with have to be produced only through metal
gold, palladium, nickel or tin to prevent stamping: Base weights, brackets, balance
corrosion. clamps, brake flanges, conveyer flights,
Plating also increases the wearability bushing seats, engine bases, flywheel
and solderable nature of the product. shrouds and friction plates. There are
Sometimes, the sheet is also pre-plated also different kinds of metal stamping
before the stamping process, and then the including: Deep drawn stamping,
product is cleaned to remove excess metal electronic stamping, Fourslide stamping,
stamping oils and films. The product is medical stamping, progressive die
then heat treated to make it stronger stamping and short run stamping. The most
since it is still in the soft state after commonly used type is the progressive die
stamping. The product is then subjected drawing wherein a metal sheet is drawn
to the deburring process for removing the through a series of dies and stamping is
sharp corners. This is done by using done by all the dies simultaneously, thus
chemicals or abrasives. Metal stamping considerably reducing the time it takes.
also involves other metalworking






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