HBS CDi 2302 - Page 22

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22
9 Welding Process
– The weld pool solidies and the welding element is physically connected to the
workpiece.
– The time period between ignition of the arc and solidication of the weld pool is
about 3 ms.
– The use of contact welding for rapidly oxidising materials like aluminium and
aluminium alloys is not recommended because the arcing period with contact
welding is longer than with gap stud welding.