Process Comparison

Producing components by means other than deep drawing are usually cost efficient only in short production runs.

In metal spinning, also known as spin forming, a disc or tube of metal is rotated at high speed and formed into a symmetrical part. Using a tool called a spoon, a force is applied to the metal work piece, which is clamped against a formed block. The force causes the metal to flow over the formed block as it spins in the tailstock of a lathe.

Welding is a fabrication process that joins metals by causing coalescence. The work pieces are melted at the joining areas by an electric arc power supply. A filler material is added to form a weld pool of molten material that cools to become a strong joint.

Machined parts are produced using clamps or fixtures to affix work pieces within the work envelopes of manual or CNC lathes, milling machines, or other metal cutting machine tools. A variety of tooling is used to perform milling, facing, boring, chamfering and other metal cutting tasks to bring the work piece to its completed shape and tolerance.

Deep drawing is the preferred method for long runs of parts conducive to deep drawing, whereby tooling costs are amortized over the part run and production speeds are well above other processes.