Perforated brass sheets are thin pieces of metal that have holes, shapes or patterns punched out of them. Because of their shiny, gold-like color, these brass sheets are most often used for ornamental purposes within the interior decorating, architectural and design industries.
Related Categories
Perforated Brass Sheets
Brass is a copper alloy with a composition of 33% zinc and 67% copper. Brass with high zinc content is lighter in color and resembles gold. It is a great conductor of heat and electricity but is stronger and more resistant than pure copper. Brass is easily formable and can be perforated into a wide variety of patterns and punch outs. The most common application for perforated brass sheets are decorative grills, often with cross or flower patterns. These are generally used in interior building design as room dividers, decorative fireplace screens and kitchen cabinet inserts that offer an alternative to glass. Radiator covers are often made of perforated brass, which conceals the radiator while still letting heat out. Ceiling panels, screens, lamp shades, tubing, sound isolation sheets, stair treads, metal furniture, valves, door panels and kitchenware like baskets, pasta strainers and food covers, and any decorative metal product that provides shade or ventilation are also commonly made of perforated brass sheets.
Like all perforated sheets, brass products are formed by a stamping press, which can also be called a punching press. Since most brass perforations are decorative, the presses are of a complex and fancy design, and therefore often require the aid of a CNC machine. CNC operated punch presses offer higher precision and accuracy but are less efficient. The process begins with large rolls of brass sheet metal that are fed into the punching machines. The pattern is then punctured into the sheet by using high amounts of force and weight. Punching presses penetrate through the metal at anywhere from 50 to 400 strokes a minute, depending on the thickness of the brass sheets. Since brass is so easily formable, manufacturers are able to produce a wide range of different patterns ranging from small, widely spaced shapes to screen-like patterns with large gauges and high transparency. To resist tarnishing, protect the finish and maintain its appearance, perforated brass is often coated with a clear lacquer, giving it a high shine. Most decorative perforated brass products are only polished on the side that will be visible. Antique finishes are also available for a higher cost.
