Manufacturing Processes & Assembly Flashcards

Which welding process uses a continuous wire electrode fed through a gun and is shielded by an external gas supply?

Answer: GMAW (MIG)

GMAW (MIG) welding uses a continuously fed wire electrode and an external shielding gas such as argon or CO2.

In a Kanban production system, a Kanban card primarily signals:

Answer: Authorization to produce or move material

A Kanban card is a visual signal that authorizes the production or movement of a specific quantity of material to the next process.

What is the purpose of a fixture in a manufacturing assembly operation?

Answer: To hold a workpiece in a fixed position during machining or assembly

A fixture securely holds and locates a workpiece in the correct position so operations can be performed consistently and accurately.

Which type of casting process forces molten metal into a reusable mold under high pressure?

Answer: Die casting

Die casting injects molten metal into hardened steel dies under high pressure, producing high-volume, near-net-shape parts.

On an assembly line, 'cycle time' is best defined as:

Answer: The time between completion of successive units at a workstation

Cycle time is the elapsed time between completing one unit and the next at a given workstation, determining line throughput rate.

What does 'poka-yoke' refer to in manufacturing?

Answer: An error-proofing mechanism that prevents or detects defects

Poka-yoke (mistake-proofing) uses physical or electronic devices to prevent errors from occurring or immediately detect them when they do.

Which heat treatment process heats steel above its critical temperature and then quenches it rapidly to increase hardness?

Answer: Hardening (quenching)

Hardening involves heating steel above its austenitizing temperature and rapidly quenching it in oil, water, or air to form martensite and increase hardness.