Welding 1
What are the 4 main processes in welding? Write out each abbreviation.
GMAW-Gas Metal Arc Welding
GTAW- Gas Tungsten Arc Welding
SMAW- Shielded Metal Arc Welding
FCAW- Flux Core Arc Welding
2400-2800 degrees F
What are the two different kinds of torches?
Dedicated and combination
What are the 3 kinds of light?
Ultraviolet, infrared and visible
What is a Type A fire extinguisher used on?
Combustible solids like paper, wood and cloth.
What is the fusion or growing together of the grain structure of the materials being welded?
Coalescence
What was the joining method introduced in the Industrial Revolution from 1750-1850?
Forge or hammer welding
Plasma Arc Cutting
When moving a gas cylinder what are 2 things you must always do?
Have the cap secured on the cylinder and always chained to the cart it is being transported in
What is a Type B fire extinguisher used on?
Combustible liquids like oil, gas, and paint thinner.
What welding process is manual?
Stick welding
Nam one metal that is considered soft?
Brass, Aluminum, Copper
Why can Plasma Arc Cutting cut almost any metal?
Because it does not rely on rapid oxidation of the metal being cut
What is the most dangerous light and why?
Ultraviolet because it cannot be seen or felt while being exposed to it.
What is the symbol for a type A fire extinguisher?
Green triangle
What is a welding process that is semiautomatic?
Mig or flux core
What are 3 things that you take into consideration when selecting the welding process you will be using?
availability of equipment, quality requirements, location of work, materials to be joined, time, skill, cost, code
What is the difference between a dedicated torch and combination torch?
Why are eye injuries supposed to be dealt with immediately?
Electrical fires involving fuse boxes, motors, and welding machines.
What does the e in E6010 stand for?
electrode
Why can't you join steel to aluminum?
Different properties, carbon equivalent does not match
Can oxyfuel cutting be used for any kind of metal? Explain.
No, you cannot cut stainless steel or aluminum and some high carbon steels because the oxides in these metals have higher melting points than the base metal
What is the best choice for welding clothing?
100% Wool
What is a Type D fire extinguisher used on?
Combustible metals like zinc, magnesium, and titanium.