Saftey
When using a torch what must you always wear?
Torch goggles, leather gloves, and safety jacket.
What does GMAW stand for?
Gas metal arc welding
Whats does MIG stand for?
Metal Inert Gas
This is the fuel gas used in oxy-acetylene welding, providing a high-temperature flame ideal for cutting and welding metals.
acetylene
This is the type of metal typically cut using a plasma cutter, especially when quick cuts are needed.
mild steel
What is the maximum safe regulator pressure for oxygen use?
10
In GMAW, this is the ideal distance between the tip of the welding gun and the work surface
typically 3/8 to 1/2 inch
This type of shielding gas is typically used for welding aluminum.
pure argon
in oxy-acetylene welding, this gas is used to support combustion and create the high-temperature flame necessary for welding.
oxygen
Can it melt through any kind of metal?
Yes
What is the maximum safe regulator pressure for acetylene use?
5
In GMAW, a common problem is when the weld exhibits uneven penetration and poor bead formation, often caused by improper settings of this.
Improper settings for either the wire feed speed or voltage
what is the common position for MIG welding on flat surfaces.
In oxy-acetylene welding, this type of flame has more oxygen than acetylene and is used for cutting metals.
oxidizing flame
What are some major safety concerns when welding?
Burns, eye damage, electrical shock, cuts, and crushed toes and fingers
This type of GMAW is known for providing a smoother, more controlled weld with less spatter than the conventional method.
Pulsed Gas Metal Arc Welding (P-GMAW)
In MIG welding, this technique involves using a short arc length and frequent, controlled motion to minimize heat input and reduce the likelihood of burn-through on thin materials.
short-circuiting or dip transfer technique
This is the technique used in oxy-acetylene welding where the welder moves the torch back and forth to create a consistent molten pool of metal.
weaving technique
How many people have been injured from welding?
approximately 2,500 annual cases
In GMAW spray arc transfer...
Small droplets of metal transfer across the arc
This type of MIG welding wire, commonly used for welding stainless steel, has a higher percentage of chromium and nickel content than standard mild steel wire.
solid stainless steel wire
This condition occurs when the oxygen flow is too high, leading to the destruction of the base metal.