Stud welding stud welding of three methods
Publish Time: 2016-10-12 Origin: Site
Today small make up take you to meet all three methods of stud welding stud welding.
The first is a stable arc welding hot air column.Between the stud end and artifacts, have stable arc process, arc as heat source in the molten pool is formed on the workpiece, at the same time in the stud end melting layer and the plastic zone, stud was holding in welding torch, close to the spring pressure welding torch or other mechanical pressure to press the stud into molten pool, and some or all of the molten metal molten pool into the ceramic ring shaped groove, forming a recrystallization plastic connection or a mixture of recrystallization and recrystallization connector.This kind of stud welding power source is generally decline volt-ampere characteristics of arc welding rectifier (controllable and uncontrollable rectifier), or welding inverter dc arc welding generator.Like welding rod arc welding, arc discharge is stable and continuous arc process.Stable arc column hot air welding is also called arc stud welding.
The second is unstable arc welding hot air column.With the former differs arc power supply capacitor Banks.Capacitor discharge between the stud end and artifacts, realize the stud welding.Because capacitance discharge is unstable arc process, the arc voltage and welding power source is the instant changing, the process is not controlled.This unstable arc column hot air welding generally referred to as the capacitive energy-storage stud welding and capacitor discharge stud welding).And because the use of the method of welding stud end center must work out a convex pointed, so others (called point discharge stud welding.
Third triton column called short-cycle stud welding arc welding (or short-term stud welding. The welding current waveform modulation after the arc, by smaller pilot arc current and larger welding arc current of two parts. It is a short stage stable or unstable arc welding hot air column. Short cycle of stud welding power supply is generally consists of two parallel separately has the power to pilot arc and arc welding power supply. Can be two arc welding rectifier (controllable or not), can also be a rectifier and capacitor Banks, can not only adopt inverter power source is the dual power supply in parallel.
Above is the information about the stud welding welding method of bolt, hope can help to you.