Welding Basics
What is welding?
Joining two or more parts using heat, pressure, or both.
What produces heat in arc welding?
An electric arc.
What is another name for SMAW?
Stick welding.
What does MIG stand for?
Metal Inert Gas.
What does TIG stand for?
Tungsten Inert Gas.
Give one advantage of welding.
It produces strong joints.
What are the two main types of welding electrodes?
Consumable and non-consumable.
Does SMAW use a consumable electrode?
Yes
Does MIG use a consumable or non-consumable electrode?
Consumable electrode.
Which welding process uses a tungsten electrode?
TIG welding.
Give one disadvantage of welding.
It can be hazardous.
Which electrode melts during welding?
Consumable electrode.
What covers the SMAW electrode?
Flux
How is the wire electrode fed in MIG welding?
Continuously by drive rolls.
Which is faster, MIG or TIG?
MIG welding.
Can welding be automated?
Yes
What are the three types of arc welding studied?
SMAW, MIG and TIG.
What does flux produce during SMAW?
Protective gas and slag.
What is one shielding gas used in MIG welding?
Argon
Which process is used for thin sheets in the lesson?
TIG welding.
Why must safety guidelines be followed during welding?
Because welding can be hazardous.
What is the purpose of an electrode in arc welding?
To create and maintain the electric arc.
Which tool removes slag after SMAW?
Chipping hammer.
Which DC polarity is used in MIG welding according to the slides?
DC reverse polarity.
What is the main difference between MIG and TIG electrodes?
MIG uses a consumable electrode; TIG uses a non-consumable electrode.