Joining pieces of metal usually involves a welding process. These pieces of metal can only have a strong bond if welding is applied to them. You see welded pieces of metal everyday, in the car you drive, your office structure, the bicycle your children ride and that bridge you cross on the way to work. The equipment used in welding are a welding power supply, electrodes, shielding gas, fillers, and welding strikers. The welding machines are equipped with regulators, sensors and safety devices such as a voltage reduction system and a flashback arrestor. There are various factors that can affect the welding process and affects the outcome of a weld. To ensure a good weld for the metal pieces you are working on and safety in the workplace you have to troubleshoot the problem right away.
1. Power problems
If there is no electrical power feeding into the welding machine you have to check the power source first. Testing the power outlet with a different device will tell you if you have adequate power coming through the outlet. You can use a multimeter on the outlet to check if the electrical output is correct. Check the electrical power cord and plug to determine if there is a break in the electrical flow. Inspect the power switch on the machine if it is functioning, a faulty power switch may be the culprit. Locate the fuses and check if they are in good condition. A tripped fuse can also prevent the welding machine from getting any power.
2. Overheating
Most welding machines will have an overheating sensor that will alert the welder the machine is generating too much heat. If you notice the overheating warning light come on, turn off the welding machine to let it cool down for a couple of minutes. Turn on the machine when it has cooled down and check if the machine will overheat again. If the machine keeps overheating in a short amount of time you need to bring it to the service center to get it repaired.
3. Welding quality
When you notice varying quality in the weld you should first check the voltage output on the welding machine. The machine will have a voltage regulator but if this becomes faulty you won’t get a consistent amount of voltage. Check the type of electrodes you are working with. Find out if you are using electrodes from the same batch. New and old electrodes will deliver varying weld qualities.
Make sure the welding machine is functioning properly if there are problems with the weld quality and the weld process. Observe sensors and regulators that will alert you if there is a problem with the welding machine. Most welding machines will have safety devices to prevent the machine from being damaged.
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