In welding, the power supply serves the function of regulating current and voltage for different arc welding applications. It is connected to the weld head, where the electric output transfers to the workpiece to melt and fuse pieces together. The consistent electric output is responsible for delivering a weld result free of defects. To ensure this consistency in every welding application, regular inspection of the welding power supply is a must.
The need for welding power supply calibration may arise from long-term use or due to variations in load or temperature. The different calibration options—independent or manufacturer calibration, can be leveraged to maintain accuracy and precision in the welding process.
The Need For Welding Power Supply Calibration
The need for calibration comes from the requirement of quality, efficiency, and safety that every welding process needs to abide by. Besides inaccurate results, using a power supply that is not calibrated also poses a serious safety risk. Thus, it is crucial to understand the cause of electric output deviation and the consequences of not addressing the issue.
Below, we have outlined some causes and consequences of the lack of welding power supply calibration.
To summarize, not calibrating a welding power supply severely affects the quality, productivity, and safety of the welding process. Thus, the fabricator must explore the different welding power supply calibration options.
Calibration Options: Ensure the Accuracy of Power Supplies
Welding power supply calibration can be done in-house, through specialized calibration shops, or sent back to the manufacturer.
We have detailed each below.
Some calibration processes may be cost-effective if performed in-house. However, there are a few
things to note. The process requires:
This is the ideal option for welding power supply calibration. Given the manufacturer’s knowledge,
the cause and requirement of calibration are likely to be identified quickly.
Here are a few things to note about the option of manufacturer calibration:
|Independent calibration shops||
Independent and accredited calibration shops are a good alternative if cost-efficiency is a concern.
The advantage of this option is:
Periodic Welding Power Supply Calibration For Weld Accuracy
Regardless of the option, welding power supply calibration must be a part of your welding inspection checklist. The frequency of calibration may differ based on factors such as the manufacturer’s recommendation or operating environment. However, a regular inspection will prevent the risks of using an uncalibrated power supply.
Through regular welding power supply calibration, you can be assured of precision and accuracy in weld results, as well as productivity and cost-efficiency in the long run.
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