Then you have the basins
themselves, and then the ring surrounding the drain outlet, and then the drain
itself. Each of these design elements didn’t just form accidentally. They were
formed by punches and dies and other stamping tools that were specifically
designed to give the original blank the shape that you see in the above image
of the finished product. Drawing is a subset of Stamping Part, which
is the process of pressing sheet metal in order to change its shape. Deep
drawing is a subset of drawing, and deep drawings become deep drawn stampings
when the drawn part’s diameter is exceeded by its depth.
The drawing process is
usually combined with other processes such as bending, notching, curling and
especially piercing. Deep drawing is considered to be a favorable alternative
to turning, which is a much more material-intensive and therefore more costly
process. Also, because deep drawing involves shaping the same work piece many
times, it is characterized by a very low level of material waste. Because deep
drawn products are produced by dies and stamps, the process can be used to
produce drawn products in large quantities over a comparatively short period of
time.
When designed well, the
process can be highly streamlined, and it can operate on a continuous basis,
subject only to the variables of maintenance and labor schedules. A few
examples of common deep drawn products include weld covers, eyelets, seal
covers, large containers, basins and a large variety of other products of
varying size, shape and composition. While it may be the case that the products
of deep drawing are not the most exciting industrial products, it’s easier to
appreciate them when you consider the precision and complexity of the process
by which they’re formed. This seems to be the case with a lot of industrial
products and processes.
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