Direction: Answer the question
1. Explain/Simplify in your own word the process of on weld in flat position Answer in 30 words
2. Explain on your own word the difference between hot pass and filler.
3. In the absence of E6011 and E6010 electrode is possible to use E7018 electrode for root pass? Defend your answer in 40 words
Answers
Explanation:
E6010 electrodes can only be used with direct current (DC) power sources. They deliver deep penetration and the ability to dig through rust, oil, paint and dirt. Many experienced pipe welders use these all-position electrodes for root welding passes on a pipe. However, E6010 electrodes feature an extremely tight arc, which can make them difficult for novice welders to use.
E6011 electrodes can also be used for all-position welding using an alternating current (AC) welding power source. Like E6010 electrodes,
E6011 electrodes produce a deep, penetrating arc that cuts through corroded or unclean metals. Many welders choose E6011 electrodes for maintenance and repair work when a DC power source is unavailable.
E6012 electrodes work well in applications that require gap bridging between two joints. Many professional welders also choose
E6012 electrodes for high-speed, high-current fillet welds in the horizontal position, but these electrodes tend to produce a shallower penetration profile and dense slag that will require additional post-weld cleaning.
E6013 electrodes produce a soft arc with minimal spatter, offer moderate penetration and have an easily-removable slag. These electrodes should only be used to weld clean, new sheet metal.
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