Tig welding - Study guides, Class notes & Summaries

Boilermaker NCCR Test Questions And Answers Boilermaker NCCR Test 1 ft 3-3/4 in + 2 ft 1-1/16 in +5 ft 10- 7/8 in = - ANS 9 ft 3-11/16 in A 1-inch plate is to be cut. Why should an acetylene gerulator on a cutting rig not be adjusted over 15 PSI? - ANS Acetylene is unstable above this pressure A big control valve is pulled who is responsible for the rigging? - ANS Crane operator and rigger A boiler maker must have all of the following wh...

TIG Welding Questions and Answers Already Passed TIG welding requires the use of a filler rod for all applications. False. TIG welding can be performed without a filler rod when welding certain materials or joints. The tungsten electrode used in TIG welding is consumed during the welding process. False. The tungsten electrode is non-consumable and should maintain its shape throughout the process. In TIG welding, shielding gas is essential to protect the weld area from contaminati...

TIG WELDING REVIEW QESTIONS AND ANSWERS ALREADY PASSED What is the primary advantage of using TIG welding over other welding processes? TIG welding provides greater control over heat and produces cleaner, higher-quality welds. What type of electrode is used in TIG welding? A non-consumable tungsten electrode is used in TIG welding. What is the role of the foot pedal in TIG welding? The foot pedal controls the amperage, allowing the welder to adjust the heat input while welding. ...

MIG and TIG Welding Test Questions and Answers Rated A+ How does the diameter of the tungsten electrode affect the welding process? Larger diameter tungsten allows for higher amperage and deeper penetration, while smaller diameters are better for thinner materials. What is the significance of cleaning the base metal before welding? Cleaning removes contaminants such as rust, oil, and dirt, which can lead to weak welds or defects. What is a common indication of poor gas coverage i...

Which of the following methods is used to start a TIG arc without touching base metal ? - ️️High frequency start How long should post purge be allowed to flow after welding arc is broken ? - ️️Long enough for base metal and electrode to cool When using TIG to weld aluminum with AC the tip of tungsten electrode should be ? - ️️Rounded at tip High frequency is added to alternated current to ? - ️️Maintain the arc If tungsten splitting occurs what may be done to solve the pro...

TIG advantages - ️️welds more metals and metal alloys than any other process, high quality and precision, pin point control, aesthetic weld beads, no spark or spatter, no flux or slag, no smoke or fumes why is aluminum so widely used in industry today. what are some of its desirable properties. - ️️so abundant, light, strong. low density, light weight, high strength, superior malleability, easy to machine, good corrosion resistance, good thermal and electrical conductivity threads...

How is TIG welding different from the other two Arc welding processes used in our shop? - ️️The electrode is not also the filler metal. You can control the amount of heat put into the weld during the welding process through the foot pedal. What is the temperature split between the positive and negative end of an arc? - ️️70% of the heat to the positive side (the side receiving the electrons) and 30% to the negative side (the side giving up the electrons) What is a weld? - ️️The...

the arrangement of direct current in which the work piece is the positive pole in the welding arc - ️️Direct current electrode negative the portion of base metal whose mechanical properties or micro structure have been altered by the heat of welding, brazing, soldering or thermal cutting - ️️heat affected zone (HAZ) a lap joint, t joint or corner joint - ️️fillet weld a device for controlling the delivery of gas at some substantially constant pressure regardless of variation i...

Advantages to an inverter machine versus a conventional machine - ️️Lower input current draw, smaller size, higher energy efficiency. How do you prepare the tungsten to weld steel - ️️Grind to Conical Shape 2-3 Times Diameter According to the American welding society, what does GTAW stand for. - ️️Gas Tungsten Arc Welding What does TIG stand for - ️️Tungsten Inert Gas What is the proper type of power source for GTAW - ️️Constant Current The AWS classification of GTAW ...

What are some considerations when choosing a tungsten? - ️️The type of metal being used and the polarity and amperage being welded on Current - ️️the time rate of flow of electric charge, in the direction that a positive moving charge would take and having magnitude equal to the quantity of charge per unit time: measured in amperes GTAW is a form of _____ welding? What are other examples? How is it different from brazing? - ️️Arc Stick and GMAW Because it uses a electric curr...