What is Deep Drawn Stamping?
Charles Richter is a worldwide manufacturer of deep drawn stampings, offering custom metal fabrication services for the industrial industry for nearly all applications.
The deep drawn stamping process allows for flat sheet metal, made of various metals to be turned into shapes of three-dimensional form. The stamping presses are made up of a die and a punch. The die section is a cavity, which is in the shape of the desired, end result. Sheet metal must first move over the die before the stamping occurs. Using a mechanical action punch, the metal is deep drawn or stretched into the forming die creating the desired shape.
The process of drawing involves forming a sheet metal between an edge-opposing punch and die to produce a cup, cone, box or shell-like part. The metal is then bent over and wrapped around a punch nose, simultaneously, the outer portions of the blank move toward the center of the blank, until they flow over the die radius. During this process the blank is drawn into the die cavity by the punch. This radial movement increases the blank thickness as the metal moves toward the die radius. As the metal flows over the die radius, this thickness decreases, because of the tension in the shell wall between the punch nose and die radius.
The difference between shallow drawing and deep drawing is subjective, although shallow drawing generally refers to the forming of a cup, no deeper than half its diameter. Wall thinning is more noticeable in stainless steel parts than in those made of low-carbon steel. One or more redraws, with or without annealing, are often required in order to complete a deep drawn part.
Leading the Deep Drawn Stamping Industry
Charles Richter has been using stamping presses for nearly a century to manipulate metal into unique deep drawn stampings. We have over a 100 presses, stamping and forming machines to produce many different shapes and sizes. Using the deep drawn stamping technique, Charles Richter can form steel, stainless steel, aluminum, copper, and brass into a variety of shapes and products. Through our deep drawn metal stampings process there is little cast-off or waste, which cuts down on the expense of custom forming.
We have a full catalog of standard deep drawn products – from cans, to cylinders, to eye balls, to wall backs. On top of stamping squares, rounds, and rectangles, we can also stamp cones, ovals, odd-shaped, and decorative pieces.
