Used for multiple purposes in stud welding.
Ceramic ferrules for stud welding.
Third the ferrule forms the molten metal into the fillet.
The use of a ferrule is required for stud welding in order to concentrate the heat and retain the molten metal at the base of the stud until it has cooled.
Second it minimizes the atmosphere that the flux must purge.
Ferrules are disposable items.
Without ceramic ferrules the drawn arc process wouldn t be effective and welds wouldn t be as strong.
Firstly the drawn arc machine is set up for the appropriate stud diameter.
To understand why it s important to know how drawn arc stud welding works.
By means of a lifting mechanism the stud will be lifted and at first an auxiliary arc pilot arc of a low current will be drawn.
They are taken out of the mold and are dried.
As disposable items they are mass manufactured quickly and inexpensively.
After cooling the ferrule is broken off to reveal the weld.
Finally the fillet vents allow weld gases to escape.
The stud will be inserted into the chuck of the stud welding gun and positioned onto the workpiece possibly by adding a ceramic ferrule.
Ceramic ferrules for arc stud welding are disposable items.
Why are ceramic ferrules essential for stud welding.
Ceramic ferrules are essential part of the standard shear connectors shear studs drawn arc stud welding process.
Initiating the welding process.
In the process the shear connector will insert into the center hole of the ceramic ferrule the ceramic ferrule will be pressed on the welding surface by ceramic ferrule holder by the force of spring device inside the welding gun.
First the ferrule helps to shield the arc from the operator.