Cold Formed Sheet Metal

Steel shrinks slightly as it cools.

Cold formed sheet metal.

A variety of steel thicknesses are available to meet a wide range of structural and non structural applications. The strength increase from cold work of forming has been incorporated for fl exural strength per section a7 2 of aisi s100 16. Cold formed steel cfs members are made from structural quality sheet steel that are formed into c sections and other shapes by roll forming the steel through a series of dies. For sheet metal rolled steel is spun into coils and left to cool.

The most common shape for cfsf members is a lipped channel although z c tubular hat and other shapes and variations have been used. Technically cold working includes cold rolling and cold drawing. The total forming effort needed is broken down into numerous forming increments spread along the entire cylindrical length of the zone being formed. Since hot rolled steel is cooled after processing there is less control over its final shape making it less suitable for precision applications.

Where aisi s100 16 is referenced it is the north american specifi cation for the design of cold formed steel structural members 2016 edition with us provisions. For other forms such as bars or plates materials are sectioned and packaged. The former is a process used with sheet metal. Cold forming sheet metal.

No heat is required to form the shapes unlike hot rolled steel hence the name cold formed steel. The grob cold forming process is based on a straightforward and universally applicable principle. Benefits very short forming cycles affordable tooling costs.