Welders – spot and electric  
     
  Welding machine selection method:  
  Characteristics and applied examples of each welding method  
     
 
Welding method Characteristics Applied examples


Shielded metal
arc welding(SMAW)
 

Low installation cost
Easy handling
Easy understanding of basic technology
Ships
Bridge
Construction

CO2/MAG/MIG
welding
 
In comparison with shielded metal arc welding
Shortened construction term
Increased penetration
(welding intensity)
High welding adhesive efficiency
Easy handling
Easy understanding of basic technology
 
Automobile parts
Motorcycle parts
Aluminum cars
Ships
Bridge
Construction
 

TIG welding
 High welding quality
No limitation for welding forms
No spatter generation
Applicable to thin steel sheet welding
 
Semiconductor plant piping
Food Plant piping
Boiler
Stainless, Aluminum products
 

STOT welding
Less thermal deformation
No need for complete skills
No need for welding rod and shield gas
 
Automobile body
Nut welding
Fuel tanks
Appliances
 
 
     
     
  Characteristics of machine type  
     
 
  TYPE CHARACTERISTICS

CO2/MAG/MIG
welding
 

 

INVERTER control
welding machine
High speed welding control Welding at
high speed using a stable Arc and
good Arc start.
Low spatter generation
Small and light weight power supply body
SCR (THYRISTER) control
welding machine
Low price
Shielded metal arc
welding machine
DC TYPE
welding machine
More stable Arc than AC type, Low Spatter.
Deep penetration
Good Arc start
Small and light weight power supply body
AC TYPE
welding machine
Low price
Simple structure
SPOT
welding machine
 
INVERTER control
welding machine
 Improvement of welding quality
Available for aluminum welding
Low consumption of electric power,
three phase balanced load
Small and light weight, three phase balanced load
AC TYPE
welding machine
Low price
Simple structure
 
     
   Basic terms
 
 
 
  • Shield gas: Protective gas for welding parts that are not to be oxidized.
    Shield gas is dependent on welding method.
  • Shield metal arc welding rod: Used by electrode during arc welding, coated with Flux.
  • Welding Wire: Solid wire and flux wire in a coil form.
  • Spatter: Scattered metal particle during welding
 
  Simple selection table for machine types  
     
 
Material Welding method Machine type Rod diameter /
sheet thickness
Application standard
Mild Steel Shielded metal
arc welding Stick
(manual)
High function Type
(DC machine)
 
3.2mm of rod B-TAC 160
4.0mm of rod B-TAC 202
5.0mm of rod B-TAC 300
8.0mm of rod LH 500
CO2/MAG welding High function Type
(INVERTER control)
 
6.0mm AUTO TAC UR 200
15.0mm AUTO TAC UR 350,
Z-PULSE 350
25.0mm AUTO TAC UR 500,
Z-PULSE 500
40.0mm  
    AUTO TAC UR 600
Normal Type
(SCR control)
15.0mm MOVE 350
25.0mm MOVE 500,
MOVE 500HG
40.0mm MOVE 600,
MOVE 600HG
45.0mm MOVE 750G
TIG welding High function Type
(INVERTER control)
 
8.0mm of rod TIG TAC 300HP,
LN301P,
AD TAC 302P
   
15.0mm of rod AD TAC 502P
SPOT welding High function Type
(INVERTER)
4.0mm of rod SL-AI 45,
SL-AI 65
Normal type
(SCR control)
3.6mm of rod SL-AJ 35
4.0mm of rod SL-AJ 35,
SL-AJ 55,
SL-AJ 90
Stainless Shielded metal
arc welding Stick
(manual)
High function Type
(DC machine)
 
3.2mm of rod B-TAC 160
4.0mm of rod B-TAC 202
5.0mm of rod B-TAC 300
8.0mm of rod LH 500
CO2/MAG welding High function Type
(INVERTER control)
6.0mm AUTO TAC UR 200
15.0mm Z-PULSE 350,
AUTO TAC UR350
25.0mm Z-PULSE 500,
AUTO TAC UR500
Normal type
(SCR control)
15.0mm MOVE 350
25.0mm MOVE 500,
MOVE 500HG
TIG welding High function Type
(INVERTER)
8.0mm of rod TIG TAC 300HP,
LN 301P,
AD TAC 302P
15.0mm of rod AD TAC 502P
SPOT welding High function Type
(INVERTER)
4.0mm of rod SL-AI 45,
SL-AI 65
Normal type
(SCR control)
3.6mm of rod SL-AJ 35
4.0mm of rod SL-AJ 35,
SL-AJ 55,
SL-AJ 90
Aluminum MIG welding High function Type
(INVERTER control)
6.0mm Z-PULSE 350,
AUTO TAC UR350
15.0mm Z-PULSE 500,
AUTO TAC UR500
TIG welding High function Type
(INVERTER control)
8.0mm of rod AD TAC 302P
15.0mm of rod AD TAC 502P
SPOT welding High function Type
(INVERTER)
2.0mm of rod SL-AI 45,
SL-AI 65
High function Type
(Condenser)
1.2mm of rod SL-AC 1
1.6mm of rod SL-AC 2
 
     
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