NOTE:Without exception, before starting work you must read the safety and warning instructions in the chapter "Safety Instructions". In addition, pay attention to the warning instructions of the particular equipment manufacturer.
Depending on the separating tools used, there are some fundamental points to bear in mind:
Resistance spot welds are best separated using a spot weld drilling machine or a spot weld milling tool.
NOTE:Steplessly variable machines increase the working life of the cutting tool. Use of a suitable lubricant can increase this even further.
The spot weld milling tool is particularly useful. It usually has an adjustable depth stop and a safety fixing system. These prevent the machine from drilling too deep and the cutter from slipping while working.
When using an ordinary drill, the depth of the drilled hole must be judged by the operator. Because of this, there is the danger of injury and also the danger of drilling right though the workpiece.
Rod sander
Another option for separating resistance spot welds is to use the rod sander.
NOTE:In order not to damage panels, wiring harnesses, hoses or similar components which lie behind, remove them beforehand as necessary.
The narrow design of the saw blade permits cutting in tight curves. Straight cuts require a relatively great deal of practice.
Orbital saw
Where use of the short stroke saw is difficult because of the body construction, the orbital saw can be used.