Welder 1st Semester : Trade Theory
National Instructional Media Institute (NIMI)
Welder 1st Semester : Trade Theory - Chennai National Instructional Media Institute (NIMI) 2016,c2014 - 180
Contents :
Module 1 : Fitting & Sheet Metal
-General discipline in the institute
-Hand tools
-Grinder pedastal and Bench
-Hacksaw frames and blades
-Files-Grades and specification
-Sheet metal shop safety rules
-Rivets and Riveting
Module 2 : Gas Cutting
-History of welding
-Principle of gas cutting and application
-Different type of common faults in gas cutting
Module 3 : Gas Welding
-Chemistry of oxy-acetylene flame
-Gases used for welding and gas flame combinations
-Properties of metals
-Production of calcium carbide
-Carbide to water type acetylene gas generator
-Acetylene gas purifier
-Oxygen gas -Properties and Production
Oxygen gas cylinder
-Safety rules for gas cylinders
-Welding regulator
-Rightward technique of oxy-acetylene gas welding
-Faults in gas cutting
-Filler rods used in gas welding
-Flashback and backfire
-Gas welding Fluxes and Function
-Welding of aluminium and its alloys
-Stainless steel-Properties -types and weld ability
-Welding of brass
-Cast Iron -Properties-type and weld ability
-Module 4: Arc Welding
-Introduction to welding (fusion, non-fusion and pressure
-Arc welding Accessories
Welding terms & its Definition
-Shielded Metal Arc Welding
-Methods of cleaning the base metals before welding
-Basic welding joints and weld
-Arc length and its effects
-Basic welding positions
-Arc welding machines
-AC/DC welding rectifier its construction
-Power source selection criteria
-Inverters
-Arc blow its Causes and Remedial Measures
-Distortion and its control
-Defect in Arc welding -its effort
-Arc welding electrodes
-Composition /Characteristics Flux
-Sizes of Mild steel Electrodes
-Choice and storage of electrodes
-Coding of electrodes as per BIS,AWS and BS153
-Weld symbol and welding symbol -Description and use
-Stainless steel welding ,Procedure and defects
-Heat treatment
Module 5: Metallic Arc cutting and Gouging
-Metallic arc cutting and gouging
978-93-82992-13-4
National Instructional Media Institute (NIMI)
Fabrication
671.52092 / WEL
Welder 1st Semester : Trade Theory - Chennai National Instructional Media Institute (NIMI) 2016,c2014 - 180
Contents :
Module 1 : Fitting & Sheet Metal
-General discipline in the institute
-Hand tools
-Grinder pedastal and Bench
-Hacksaw frames and blades
-Files-Grades and specification
-Sheet metal shop safety rules
-Rivets and Riveting
Module 2 : Gas Cutting
-History of welding
-Principle of gas cutting and application
-Different type of common faults in gas cutting
Module 3 : Gas Welding
-Chemistry of oxy-acetylene flame
-Gases used for welding and gas flame combinations
-Properties of metals
-Production of calcium carbide
-Carbide to water type acetylene gas generator
-Acetylene gas purifier
-Oxygen gas -Properties and Production
Oxygen gas cylinder
-Safety rules for gas cylinders
-Welding regulator
-Rightward technique of oxy-acetylene gas welding
-Faults in gas cutting
-Filler rods used in gas welding
-Flashback and backfire
-Gas welding Fluxes and Function
-Welding of aluminium and its alloys
-Stainless steel-Properties -types and weld ability
-Welding of brass
-Cast Iron -Properties-type and weld ability
-Module 4: Arc Welding
-Introduction to welding (fusion, non-fusion and pressure
-Arc welding Accessories
Welding terms & its Definition
-Shielded Metal Arc Welding
-Methods of cleaning the base metals before welding
-Basic welding joints and weld
-Arc length and its effects
-Basic welding positions
-Arc welding machines
-AC/DC welding rectifier its construction
-Power source selection criteria
-Inverters
-Arc blow its Causes and Remedial Measures
-Distortion and its control
-Defect in Arc welding -its effort
-Arc welding electrodes
-Composition /Characteristics Flux
-Sizes of Mild steel Electrodes
-Choice and storage of electrodes
-Coding of electrodes as per BIS,AWS and BS153
-Weld symbol and welding symbol -Description and use
-Stainless steel welding ,Procedure and defects
-Heat treatment
Module 5: Metallic Arc cutting and Gouging
-Metallic arc cutting and gouging
978-93-82992-13-4
National Instructional Media Institute (NIMI)
Fabrication
671.52092 / WEL