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12 Questions

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Welding Through the Ages

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Questions and Answers

Which method of welding was most commonly used in production on aircraft materials under 3⁄16-inch in thickness until the mid 1950s?

Electric welding

Arc welding

Gas welding (correct)

Hydrogen welding

What is the most common type of welding that is usually referred to as 'stick' welding?

Hydrogen welding

Gas metal arc welding

Shielded metal arc welding (correct)

Electric arc welding

What is the purpose of the flux coating on the metal wire rod in shielded metal arc welding (SMAW)?

To form an air gap between the metal and the electrode

To prevent oxidation of the molten puddle (correct)

To produce intense heat needed to melt the work and the electrode

To protect the weld bead as it cools

What is the former name for gas metal arc welding (GMAW)?

Metal inert gas (MIG) welding Signup and view all the answers

Which type of welding can be used for large volume?

Gas metal arc welding Signup and view all the answers

Which gas is commonly used in oxy-acetylene welding equipment?

Oxygen Signup and view all the answers

What is the approximate heat output of hydrogen when used in aluminum welding?

4,800 °F Signup and view all the answers

What is the purpose of the inert gas in gas metal arc welding (GMAW)?

To shield the molten puddle from oxygen Signup and view all the answers

What is the temperature of the oxy-acetylene flame used in gas welding?

Approximately 6,300 °Fahrenheit Signup and view all the answers

What are the three general types of welding mentioned in the text?

Gas, electric arc, and electric resistance Signup and view all the answers

When was welding as we know it today invented?

19th century Signup and view all the answers

What are some of the lighter metals used in the construction of aircraft?

Aluminum, magnesium, and titanium Signup and view all the answers