What is a power supply capacitor?

At the heart of the power supply are capacitors with capacitance ranging from 20,000 to 200,000 μF. These large-value capacitors are designed to rapidly discharge a substantial amount of energy during the welding process.

What is a capacitive discharge stud welding system?

The capacitive discharge stud welding system comprises three primary components: a power supply, a controller, and a welding torch. For enhanced efficiency and compactness, the power supply and controller are typically integrated into a single unit.

How fast does a capacitor release energy?

of the capacitors in this device, and hence the release of the stored energy, occurs almost instantaneously in the interval of 1-3 ms. This minimizes the heat-affected zone in the welded joint. In addition, the simplicity of dosing energy and upsetting force results in a consistently high weld quality.

What are capacitive discharge stud welding torches?

Capacitive discharge stud welding torches are available in both handheld and fixed configurations, with their internal structures varying to accommodate the specific requirements of the three primary capacitive discharge stud welding methods: pre-contact, gap-reserving, and arc-drawing.

What are the advantages of spot welding apparatus?

Main advantages the spot welding apparatus: high performance; minimum heat affected zone due to high energy density and short pulse; connection strength; simplicity of technology that does not require highly qualified personnel; uniformity of the mains load at high welding currents. Let's consider the operation of the welding device in more detail.

What is the operating mode of a welding current pulse?

The duration of the operating mode (discharge) is set by the potentiometer R12 and it is 0.1; 0.2; 0.5; 1.0; 2; 5 and 10.0 milliseconds (ms). Welding current pulses, during which heating and welding of products are carried out, can be single and combined.