Material Preparation Method

• Importance of Cleaning
• Methods of Cleaning
• Basic electricity as applied to welding
• The law States
• Arc length and its effects
• Arc length
• Long arc
• Polarity in DC Arc Welding
• Basic welding methods
• Edge Preparation
• Types of edge Preparation and Setup
• Arc welding Electrodes
• Types of flux Coating
• Cellulosic Electrode
• Rutile electrodes
• Basic or hydrogen –Controlled electrodes
• Iron Powder electrodes
• Composition/characteristics flux
• Arc stabilizing substances
• Stag forming Substances
• Fixing /cleaning Substances
• Gas Forming Substances
• Binding and plasticizing substances
• Purpose or function of flux coating
• Mid steel electrode
• Special purpose electrodes
• Deep penetration electrodes
• Cutting and gauging electrodes
• Underwater welding and cutting electrodes
• Low hydrogen electrodes

Defects in arc welding-its effects
 

• Distortion and its control
• Cause of distortion

Advantages and disadvantages of Ac and DC welding
 

• Disadvantages of AC Welding
• Advantages of DC Welding
• Inspection of Weld (NDT) – Visual inspection
• Necessity of inspection
• Types of tests
• Visual inspection (non-destructive test)
• Visual inspection before welding
• Testing of welds
• Checkpoints for inspection
• Methods of Non-Destructive tests

Apply for certification:

https://www.vskills.in/certification/page/vskills-certified-junior-arc-welder