Intro To Welding Flashcards
What is Oxy-Fuel Cutting?
A thermal cutting process that uses oxygen and a fuel gas like acetylene to cut metals.
Commonly used for cutting steel and other metals.
What does Plasma Cutting utilize?
Ionized gas at high temperatures for cutting metals.
Effective for cutting thick materials.
What is the principle behind Laser Cutting?
Employs a focused laser beam for precise metal cutting.
Known for high precision and minimal thermal distortion.
Define GMAW.
Gas Metal Arc Welding; uses a continuous wire feed as an electrode and shielding gas.
Also known as MIG (Metal Inert Gas) welding.
What is the difference between GMAW and FCAW?
FCAW uses a tubular wire filled with flux, while GMAW uses a continuous wire feed.
FCAW can be used without shielding gas.
Describe GTAW.
Gas Tungsten Arc Welding; uses a non-consumable tungsten electrode and shielding gas.
Also known as TIG (Tungsten Inert Gas) welding.
What are Consumable Electrodes?
Electrodes that melt and become part of the weld (e.g., GMAW and SMAW electrodes).
They provide material to the weld pool.
Define Non-Consumable Electrodes.
Electrodes that don’t melt during welding (e.g., GTAW’s tungsten electrode).
They provide the arc but not the filler material.
What applications are GMAW and FCAW best suited for?
High-speed applications and structural work.
Both processes are efficient for production welding.
When is GTAW ideally used?
For precise and clean welds on thinner materials.
Often used in industries requiring high-quality welds.
What is SMAW known for?
Its versatility and suitability for repairs and outdoor conditions.
Also known as stick welding.
What are Critical Welds?
Welds that must withstand high loads; require certification and inspection.
Common in structural and safety-critical applications.
What are Non-Critical Welds?
Welds for non-load-bearing applications; have less strict standards.
Typically used in decorative or non-structural projects.
