MIG welding: MIG stands for metal inert gas, a manually programmed robot MIG welding machine is used where a batch of components are clamped into position on a jig. The jig is then rolled into the welder where a robotic arm with an integrated welding nozzle moves around the component welding parts together. First a dummy run is made to check positioning and movement of the robot arm. Once this is confirmed then the sequence of welds can be saved into the machine’s computer. The advantages of using jigs are that a series of identical components can be accurately and quickly manufactured without the need to employ skilled workers. The robot welder can also operate for hours without the need for rest breaks. Once welding has been completed the finished component is released from the jig and another set of components clamped in place in readiness for the next cycle to begin.
CNC spinning: circular sheet metal components which are symmetrical about a central axis can be produced before a metal blank onto a rotating former. This process is called spinning and it is used to manufacture components which cannot readily be pressed or when finished off pressed components
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