HBS C 08 - Welding Preparation; High-Strength Welds; Determination of Welding Parameters

26 C 08 Order No. BA 92-20-262 Issue 01.03.08
5.3 Welding Preparation
 Read the safety instructions in chapters 1, 3 and 5.
 Observe the workplace requirements (chapter 3, ”Starting-up").
 Check all cables and connections for proper condition.
 Replace immediately defective cables and cable connections to avoid electrical
shocks.
 Check the chuck for proper seat (see operating manual of according power unit).
 Before welding, make sure that the bellows are checked for damage and proper
seat.
5.4 High-strength Welds
 The following must be removed both from the weld zone and the ground clamp
connection areas:
– paint, oil and any other impurities,
– rust,
– non-conductive coatings from surface treated workpieces.
 Weld to smooth and flat surfaces only.
For welding to pipes or punched plates consult our
responsible application manager (address of customer
service see page ii).
5.5 Determination of Welding Parameters
The adjustment of welding parameters on the power unit (e.g. charging voltage via energy
controller) or on the welding gun (e.g. spring force) depends amongst others on
– material of the welding element
– diameter of the welding element
– material of the workpiece
The guidelines should be verified by test welding on the actual material and be changed
if necessary. For an assessment of welding results, see section 5.7 and 5.8.
5 Stud Welding Procedure
5.3 Welding Preparation