Welding Study Guides

Shielded metal arc

_________ welding is an electric arc welding process that joins metal together using a consumable electrode

Maintenance and repair; fabrication; construction; shipbuilding; automotive work

Name 2 applications of SMAW welding:

MIG welding; consumable wire

____ ________ is an arc welding process that joins two metals together using a _______ ________ electrode while welding area is protected by a shielding gas to prevent contamination.

closing; shorts out

The wire comes into contact with the metal, ________the circuit and _____ _____, generating an arc that welds the metal together.

Vehicle repair; sheet metal welding; pressure vessels and steel structures; pipelines; home improvement; light fabrication

Name 2 applications of MIG/GMAW welding:

Flux-Cored arc

_____-______ ____welding is a process that uses a consumable tubular electrode in the electrical arc to join metals.

Self shielded and double shielded

What are the two types of FCAW?

Pipelines, Manufacturing, Shipbuilding, underwater welding, general repairs

Name 2 applications of FCAW welding:

PROS: Offers higher penetration than GMAW/MIG, Able to weld ferrous metals, More portable than GMAW/MIG because the Shielding Gas tank is not needed, Easier to learn than SMAW (Stick welding), Uses the same machine as GMAW/MIG , Works well with outdoor welding as the flux creates a shielding layer

Cons: Produces more slag than GMAW/MIG, Flux filled electrodes are more expensive than solid wires, Flux disintegration creates excessive toxic fumes, Trapped gases can form holes in the welds

Name 1 pro and con of each form of FCAW welding

TIG

What is another name for Gas tungsten arc welding?

SAW

What is the acronym for submerged arc welding

Karl-Hein Steirgerwald

Who invented Electron Beam Welding?

Laser beam welding

What does “LBW” stand for?

Argon; helium

Give an example of a shielding gas used in Gas Tungsten Arc Welding

covered

In submerged Arc welding, an electrode is _______ by flux.

Expensive and limited portability

What is a disadvantage of electron beam welding?

laser beam

In laser beam welding, a high energy _______ is used to weld materials together

Aerospace; Automotive; Medical; Construction

Name 4 industries that use on the previous techniques

Top: Wire; Left: molten pool; right: workpiece

Brazing

What welding process is over 3,000 years old and was first used for metalwork in Egypt?

Elihu Thomson

Who invented resistance welding (RW), widely used in the automotive industry for fast metal joining in 1885?

Aerospace, automotive

Name 2 industries dependent on RW, FSW, or Brazing welding

solid

Friction stir welding (FSW) is a ________ - state weleding process that uses mechanical force and friction to join materials without melting them

lightweight

Friction Stir Welding (FSW) is especially effective for joining _______ materials such as aluminum and magnesium alloys, that are difficult to weld with tradictional methods.

causes grain growth increasing strength

How does rotary welding (RW) achieve a strong bond between materials?

electircal curreent

Resistance welding uses _______ ______ to bond metal together

Spot; seam; butt

Name a type of resistance welding.

filler metal

What is used in brazing to bond the materials together?

torch brazing; furnace brazing, induction, dip

Name a typed of brazing welding