{"id":1919,"date":"2024-07-31T13:00:32","date_gmt":"2024-07-31T13:00:32","guid":{"rendered":"https:\/\/svestudy.com\/?page_id=1919"},"modified":"2025-05-11T10:55:05","modified_gmt":"2025-05-11T10:55:05","slug":"ame-unit-8-q6","status":"publish","type":"page","link":"https:\/\/svestudy.com\/?page_id=1919","title":{"rendered":"AME Unit 8 Q6"},"content":{"rendered":"\n
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With reference to TIG welding:
(a) describe the process;(3)
(b) explain why an ac current is preferred when welding aluminium;(2)
(c) explain the advantages compared to other methods.(5)<\/p>\n\n\n

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TIG Welding (Gas Tungsten Arc Welding)<\/p>\n\t\t\t

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TIG welding<\/strong>, or Gas Tungsten Arc Welding (GTAW)<\/strong>, is a welding process that uses an electric arc to create a weld between two pieces of metal. Unlike other welding processes, TIG uses a non-consumable tungsten electrode to produce the arc. \u00a0<\/a><\/p>\n\n\n\n

1. TIG Welding: Definition, How it Works, How to Use, and Benefits | Xometry <\/a><\/a><\/a><\/a><\/p>\n\n\n\n

2. How a TIG Welder Works and When to TIG Weld | MillerWelds <\/a><\/a><\/a><\/p>\n\n\n\n

How TIG Welding Works:<\/h3>\n\n\n\n
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  1. Arc Initiation:<\/strong> An electric current is passed through a tungsten electrode, creating an arc when it comes into contact with the workpiece. \u00a0 <\/a>1. What is TIG Welding? <\/a><\/a><\/a><\/a>www.r-techwelding.co.uk<\/a><\/a><\/li>\n\n\n\n
  2. Shielding Gas:<\/strong> An inert gas, typically argon or helium, is used to protect the weld area from contamination. \u00a0 <\/a>1. [Solved] In an inert gas welding process, the commonly used gas is – Testbook <\/a><\/a><\/a><\/a>testbook.com<\/a><\/a><\/li>\n\n\n\n
  3. Filler Metal:<\/strong> A filler metal rod is often used to add material to the weld pool. \u00a0 <\/a>1. Understanding TIG Filler Rods: A Comprehensive Guide for Welders <\/a><\/a><\/a><\/a>www.weldingandwelder.com<\/a><\/a><\/li>\n\n\n\n
  4. Weld Formation:<\/strong> The intense heat from the arc melts the base metal and filler metal, forming a weld pool. \u00a0 <\/a>1. What is TIG Welding? – Ask an Expert | Quote my Project – Universal Fabrications <\/a><\/a><\/a><\/a>universalfabrications.com<\/a><\/a><\/li>\n\n\n\n
  5. Cooling:<\/strong> As the welding torch moves along the joint, the weld pool solidifies, creating a weld bead. \u00a0 <\/a>1. Welding Beads: What Are They? & Different Types <\/a><\/a><\/a><\/a>www.megmeet-welding.com<\/a><\/a><\/li>\n<\/ol>\n\n\n\n

    Key Characteristics of TIG Welding:<\/h3>\n\n\n\n