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. It is often combined with foil stamping to create a shiny, 3D effect.
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Process
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The metal sheet embossing operation is commonly accomplished with a combination of heat and pressure on the sheet metal, depending on what type of embossing is required. Theoretically, with any of these procedures, the metal thickness is changed in its composition.
Metal sheet is drawn through the male and female roller dies, producing a pattern or design on the metal sheet. Depending on the roller dies used, different patterns can be produced on the metal sheet. The pressure and a combination of heat actually "irons" while raising the level of the image higher than the substrate to make it smooth. The term "impressing" refers to an image lowered into the surface of a material, in distinction to an image raised out of the surface of a material.
In most of the pressure embossing operation machines, the upper roll blocks are stationary, while the bottom roll blocks are movable. The pressure with which the bottom roll is raised is referred to as the tonnage capacity.
Embossing machines are generally sized to give 2 inches (5 cm) of strip clearance on each side of an engraved embossing roll. Many embossing machines are custom-manufactured, so there are no industry-standard widths. It is not uncommon to find embossing machines in operation producing patterns less than 6 inches (15 cm) wide all the way up to machines producing patterns 70 inches (180 cm) wide or more.
Characteristics
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The metal embossing manufacturing process has these characteristics:
Commonly used materials
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The following materials are suitable for embossing:
See also
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References
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Use a stylus or embossing tool to etch designs into metal
When you emboss metal, you participate in an art form that has existed for centuries. Metal embossing is used to impart a design upon metal sheets. The metal is pushed with an embossing tool or stylus in order to create a raised effect on the opposite side. By placing the metal sheet on a rubber or foam pad, the positive impression has a smooth surface that will shine or can take pigment. Embossed metal sheets can be used to decorate items like tins, lanterns, windows or doors. Smaller pieces can also be used to decorate greeting cards or scrapbooks. Embossing metal does not require many tools. The steps below will present you with a tried and true method of metal embossing.
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