Bending Half Hard Copper Sheet

Consider a sheet with a 20 mm thickness and a length of 300 mm as shown in figure 1.

Bending half hard copper sheet. The bend radius you select may not be available if the geometry of the part will not allow us to bend with the specific tooling required to achieve that radius. Use the minimum bend dimension values in the charts below for your minimum closeness of cutout to a bend. If you want high polish try to get sheets with protective film that you leave on till the last possible moment. C260 half hard sheets and tubes it is low lead and easily formable bendable.

The component requires folding into a box like shape and the fold line would be typically 50mm 2 long x a similar face width although the starting tab would only be circa 25mm wide x 50mm long 1 x 2. You can put tape on the sheets to minimize scratches. We are going to review three bending scenarios with three different bending angles. It consists of 99 9 percent copper and is available in six tempers designated by astm b370 as.

The unit of measurement used to identify the thickness of a sheet of copper varies e g gauge mil ounces per square foot inches millimeters. Material bend radii and minimum bend size charts please note. Bending sheet metal by hand is a manageable task if the piece of sheet metal is small and thin enough to handle. 60 90 and 120 and we will calculate k factor bend allowance and bend deduction for them.

Most roofing supply houses carry cold rolled sheets in 36 x 96 or 48 x 96 and the sheets are usually cold rolled. 110 copper sheet plate is widely known for its architectural applications whereas the familiar green patina appearance is acheived when exposed to the elements copper sheets and plates have excellent hot or cold workability and is ductile when heated. Copper sheets plates are also noted for their high electrical and thermal conductivity and good corrosion resistance. I wish to prototype a small component from 3mm 1 8 c101 99 9 half hard pure copper sheet.

110 sheet copper is usually sold in 3 different tempers cold rolled or crc half hard and dead soft. Most frequently expensive sheet metal bending tools called brakes are used to bend sheet metal but you can also complete this task without one. It is also known as yellow brass or cartridge brass. The copper most commonly used for sheet and strip applications complies with astm b370.

Types of copper and properties. Below is a quick guide to help you determine which thickness best suits the needs of your project. These forming operations include blanking piercing bending drawing and stretch forming spinning rubber pad forming and contour roll forming.