What does the term "duty cycle" refer to in welding?

The term "duty cycle" in welding refers to the percentage of time a welding machine can operate within a specified time frame, such as 10 minutes, without overheating. For instance, a duty cycle of 60% at a specific amperage means that the welder can operate continuously for 6 minutes and should then cool down for the remaining 4 minutes in that 10-minute period. This measurement is crucial for ensuring the longevity and safe operation of welding equipment, as exceeding the duty cycle can lead to overheating and potential damage to the machine.

Understanding the duty cycle helps welders select the appropriate equipment for their projects, particularly in relation to the expected duration and intensity of their welding tasks. It also impacts workflow, as welders must plan for cooling times accordingly to maintain efficiency and performance.