Energy storage spot welding machine survey

How is weld spot quality assessed?

Weld spot quality can be assessed using destructive and non-destructive methods. The first is more widespread than the second in the industry. However, due to its application, it requires more time than the welding process and cannot be applied to parts to reach consumers. Thus, they are usually carried out by sampling [ 12 ].

Does resistance spot welding reduce energy consumption?

Actions aiming to reduce energy consumption directly contribute to the reduction of manufacturing costs and carbon footprint while supporting manufacturing processes’ productivity. Resistance spot welding is relevant in the automotive sector. Due to its operational characteristics, this process has high energy consumption.

What is resistance spot welding?

Resistance spot welding is relevant in the automotive sector. Due to its operational characteristics, this process has high energy consumption. Despite this fact, few studies have found to guide solutions for its reduction.

How much electricity does a spot weld use?

This parameter combination results in a consumption of approximately 2 Wh per spot weld. Approximately 33% less than the average estimated consumption per spot weld in the automotive industry. Carbon footprints left by manufacturing industries increase as their consumption of electricity boosts [ 1 ].

Why is dynamic resistance important in spot-welding?

For example, only the dynamic resistance was able to identify the expulsion in all samples tested for low carbon steel. The authors also pointed out that the dynamic resistance curve stands out for representing the physical phenomenon of spot-welding and its ease of measurement among the studied signals.