Magnetic Pulse Welding
Magnetically accelerated impact welding is a non-contact joining process where a strong magnetic field is generated by capacitor discharges. This accelerates the joining partner extremely fast and presses it onto the components, creating a cold weld.
Physical-Chemical Working Principle
A strong magnetic field is generated by a sudden discharge of capacitors. This field induces eddy currents in the joint partner, accelerating it extremely quickly. The rapid relative movement between the parts leads to a cold-welded connection.
Metallurgical Relevance & Welding Risks
The fast acceleration and cold welding can cause fine cracks or incomplete welding if settings are not correct. Excessive speed can also lead to part deformation or destruction.
Workshop Practice & Instructions
Use a closed welding chamber for optimal shielding and control. Make sure the capacitors are properly charged and the magnetic field strength is above 1 Tesla. The speed of the joint partner should be between 50 and 200 m/s. Monitor the temperature in the welding zone to ensure a cold-welded connection.