Erosive Manufacturing Processes

What is an example of an erosive manufacturing process?

• Milling

• Drilling

• Laser Cutting

• Grinding

Erosive manufacturing processes often involve the removal of material through ______.

• Addition

• Subtraction

• Erosion

• Fusion

Fill in the blank: The presentation will examine a number of manufacturing processes that remove material by ______ means.

• A) erosive

• B) additive

• C) subtractive

• D) constructive

What is the role of the inner flame in the diagram?

• Pre-heating

• Cutting

• Welding

• Polishing

Fill in the blank: In erosive manufacturing processes like flame cutting and plasma cutting, the cutting head does not normally ______ the work piece.

• A) Touch

• B) Heat

• C) Melt

• D) Break

What is a common feature of all erosive manufacturing processes listed?

• They all use water

• The cutting head does not touch the work piece

• They all require manual operation

• They all use electricity.

What is the maximum thickness of metal alloys that flame cutting can handle?

• 100 mm

• 200 mm

• 300 mm

• 400 mm

What is the purpose of the pre-heating jets in flame cutting?

• To oxidise the metal

• To bring the metal to its ignition point

• To burn away and remove dirt

• To soften the metal

What is the purpose of an electric arc in plasma cutting?

• To cool the gas

• To heat the gas to form plasma

• To provide light

• To create sound

Fill in the blank: The _______ is used to direct the plasma in the cutting process.

• A) Electrode

• B) Plasma cutting head

• C) Power source

• D) Pilot arc