Magnetic pulse welding
Magnetic pulse welding (MPW) has made its appearance in recent years. Its closest rela-
tive is explosion welding but, instead of an explosive, an extremely powerful magnetic
pulse is used. In comparison with explosion welding, important advantages include a
low noise level and an ability to make further welds with little time for preparation or
setting up between them.
The principle involves discharging a high-capacitance capacitor through a coil
surrounding the parts to be welded. Two pipes, for example, can be inserted into each
other to formanoverlap joint, see Figure8.12. The high current generates a brief
0.1<ms) but extremely powerful magnetic field, which creates a repulsive force,
pressing the outer part towards the inner one.
Supplied By RIHUI Ceramic Welding Backing
Date: 2023-04-10 hits: 608 Return
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