Table of Content
 

Steel rule

  • Scriber
  • Punches
  • Centre punch
  • Prick punch
  • Dot punch
  • Hammer
  • Major parts of a hummer
  • Face
  • Peen or pein
  • Cheek
  • Eye hole
  • Specification
  • Before using a hammer
  • Bench vice
  • Chisel
  • Parts of a chisel
  • Clamps
  • Types of clamps used
  • Uses of different types of clamp
  • Hacksaw frame and blade
  • Types of hacksaw frames
  • Solid frame
  • Adjustable frame (flat type)
  • Adjustable frame (tubular type)
  • Hacksaw blades
  • Types of hacksaw  blades
  • Flexible blades
  • Pitch of the blade setting of the saw
  • Staggered set
  • Parts of a file
  • Tip or point
  • Edge
  • Heel
  • Shoulder
  • Tang
  • Handle
  • Ferrule
  • Materials
  • Cleaning of files
  • Method of removing pinning
  • Try square
  • Uses
  • Wing compass
  • Snips
  • Mallet
  • Ordinary
  • Punches used for producing holes

High pressure oxy – acetylene welding                                                                          

  • Oxygen gas cylinders
  • Dissolved acetylene cylinders
  • Oxygen pressure regulator
  • Acetylene regulator
  • Rubber hose-pipes and connections
  • Safety precautions in handing oxy-acetylene gas welding plants
  • General safety precautions
  • Gas welding hand tools
  • Double ended spanner
  • Cylinder key
  • Nozzle or tip cleaner
  • Cleaning the  tip
  • Tip cleaner
  • Chipping hammer
  • Carbon steel wire brush
  • Tongs
  • Types of oxy – acetylene flames
  • CHARACTERISTICS AND ANDUSES
  • Neutral flame
  • Uses
  • Oxidizing flame
  • Uses
  • Carburizing flame
  • Filler rods for gas welding
  • Filler rod and its necessity
  • Filler rods used in gas welding
  • Definition of filler rod
  • Types of filler rods
  • Care and maintenance
  • Distortion in gas welding
  • Definition
  • Longitudinal distortion
  • Angular distortion

Weld defects – causes and remedies

  • Weld symbol and welding symbol – description and uses
  • Arrow
  • Root opening and groove angle
  • Contour and finish symbols
  • Welding
  • Dimensions and other details
  • Importance of welding in industry
  • Advantages of welding over other methods of joining
  • Metals
  • Advantages of welding
  • Power sources of TIG welding – types, application – care and maintenance
  • Power sources for GTAW
  • Types of power sources
  • Alternating current transformers
  • Direct current rectifies
  • High frequency unit  and DC suppressor unit
  • High frequency unit (HF unit)
  • Care and maintenance of HF unit
  • DC suppressor
  • Suppression of the D.C component in the a.c. arc
  • Care and maintenance of DC suppressor
  • Properties and uses of Argon and helium gas -  Ceramic shield
  • Shielding gases
  • Properties of argon and helium gas
  • Gases for TIG welding of aluminium Argon gas
  • Argon
  • Low gas volume
  • Vertical and overhead welding
  • Automatic welding
  • Welding dissimilar metals
  • Helium
  • Small heat affected zone
  • His gas volume
  • Thick work mental
  • Automatic welding
  • Aluminium bronze
  • Brass
  • Cobalt base alloys
  • Cupro-Nickel
  • Deoxidized copper
  •  Low carbon steel
  • Magnesium alloys
  • Molybdenum 0.5 Ti alloy
  • Monel
  • Nickel alloys
  • Welder
  • PH stainless steel
  • Silicon bronze
  • Silicon steels
  • Titanium alloys
  • Ceramic shields/nozzles
  • Gas lens

Apply for Certification

https://www.vskills.in/certification/Vskills-Certified-Gas-Welding-Operator