Spinning Process In Sheet Metal Forming

A sheet metal disc is rotated at high speeds while rollers press the sheet against a tool called a mandrel to form the shape of the desired part.

Spinning process in sheet metal forming.

Metal spinning and flow forming have noteworthy differences in the initial blank or preform used mainly because the final workpiece produced by each process has different requirements. Spinning can be performed by hand or by a cnc lathe. There is usually not much change in the thickness of the sheet metal. A formed block is mounted in the drive section of a lathe.

In a conventional spinning operation the work is essentially formed by bending. Metal spinning does not involve removal of material as in conventional wood or metal turning but forming moulding of sheet. About 90 percent of spun parts can be formed by starting with a blank disk trimmed from standard commercial sheet metal. The sheet metal parts that have circular cross section can be made by this process.

Spinning is a sheet metal forming process in which a metal blank is pressed over a rotating chuck or form mandrel with the help pressing tool to obtain axisymmetric hollow shell. The axis symmetric components formed by using spinning sheet metal forming as shown in figure the spinning metal product such as aircraft engine parts jet engine parts truck wheels and etc. The symmetrical parts can be formed over mandrels by using sheet metal spinning process. Spinning sometimes called spin forming is a metal forming process used to form cylindrical parts by rotating a piece of sheet metal while forces are applied to one side.

The spinning process is fairly simple. Shear spinning is a process related to conventional spinning and is also known as flow turning or spin forging. Spinning can be performed by hand or by a cnc lathe.