How to Control Arc Length in Welding

Arc length is the distance from which the electrode is from the base metal while you're welding. The one important aspect in welding is that the strength and quality of the weld depends on the control you have on the length of the arc. It takes some time and practice to master.

Instructions

Difficulty: Moderately Challenging

1. Look at the electrode to see the size. The size of the electrode will determine the distance you will hold the electrode from the metal.
2. Hold the electrode 1/8-inch from the metal if it is 1/8-inch thick. The arc length will vary according to the thickness of your electrode.
3. Remember that your electrode gets shorter as you weld. You will constantly have to control the arc length as you're welding by making sure the electrode is always the proper distance from the base metal.
4. Control the arc length by making sure that the electrode is not too close to the base metal. If the electrode is too close or the arc length too short, the weld will be bad.
5. Keep the arc length from getting too long to ensure a good weld.
6. Stay aware of your arc length. This is key in making sure you have a good, strong weld. You must always be in control of the arc length, and adjusting your electrode constantly while your welding progresses.

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