Sheet Metal Embossing with Urethane Tooling
Sheet metal embossing is a stamping process for producing raised or sunken designs or relief in sheet metal. This process can be made by means of matched male and female roller dies, or by passing sheet or a strip of metal between rolls of the desired pattern.
A very inexpensive tooling system for embossing is to machine the desired shape in a metal plate ( on a CNC milling machine), and using a flat sheet of Urethane as a matching forming die, the sheet metal is forced into the sheet of urethane to produce the desired pattern.
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To form the Stainless Steel Heat Exchanger Plate, a steel plate was machined on a CNC Mill, to the concave shape of the finished part pattern, and by using a 3/4” thick flat sheet of Urethane as a bottom Die, the sheet metal was pressed into the urethane sheet to “hydro-form”, precisely to the shape of the steel punch.
This was done on a 6000 Ton Hydraulic Press.
For embossing copper plates to produce eave designs for a winery, we used a carved wood
panel to produce a Urethane bottom die, and using this as a mold, we cast a very hard grade Urethane punch.
Embossed metal ceiling tiles are made with metal punches and Urethane sheets as bottom dies
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