Energy storage spot welding nails

What is a spot welder used for?

of larger, more powerful, and more costly welding transformers.Spot welding is most commonly used in the automobile manufacturing business, where it is nearly routinely used to join the sheet metals of car frames. Spot welders can also be fully automated and many o

Why is spot welding important?

d electrical conductivities necessitate larger welding currents. This necessitates the us of larger, more powerful, and more costly welding transformers.Spot welding is most commonly used in the automobile manufacturing business, where it

How do weld spots work?

The amount of overlap and the distance between the weld spots depend on the electrical conductivity of the work material, i.e., the distance chosen between the weld spots increases with increasing electrical conductivity. The diameters of weld spot and weld nugget depend on the electrode geometry and on the number of weld spots.

What is resistance spot welding?

Resistance spot, ultrasonic or laser beam welding are mostly used for connecting battery cells in the production of large battery assemblies. Each of these welding techniques has its own characteristics depending on the material properties and contact geometry. Cell casing and terminal dimensions may constrain possible contact geometries.

How many weld spots are there?

The measuring point left in the diagram of Fig. 14 shows two weld seams each 13.5 mm long but using superimposed beam oscillation. For resistance spot welding, the number of weld spots was varied from 4 to 8 to 12 weld spots.

How to avoid a metal pick-up tendency in a spot welding?

An intensive cooling of the electrodes is of paramount importance to avoid any electrode metal pick-up tendency. Due to the low resistance of the material aluminium, the spot welding must be carried out with high welding currents within short welding times using a special electrode force programme (Figure 4500.01.03).