Question

What are the terms used during the Cire-perdue process?
(A) Slip
(B) Core vents
(C) Sprue
(D) Ducts
(E) Claw
Choose the correct answer from the options given below:

• A. (A), (B) and (E) only
• B. (D) and (E) only
• C. (A) and (D) only
• D. (B), (C) and (D) only

Hint:

Think of the lost-wax mold as a plumbing system for molten metal. Sprues are the main pipes, ducts are the smaller pipes, and vents are the exhaust system for gases.

Answer 1

The Correct Option is D

Step 1: Definitions within the context of Cire-perdue (lost-wax casting).

(A) Slip: A liquid clay used in ceramics; not relevant to metal casting.
(B) Core vents: Channels in the core that allow gas escape during molten metal pouring, preventing defects.
(C) Sprue: The main channel for pouring molten metal into the mold.
(D) Ducts: Smaller channels guiding metal from the sprue to the mold cavity.
(E) Claw: A chisel or sculpting tool; not a casting process term.

Step 2: Identify relevant terms.Core vents, sprues, and ducts are critical investment mold components in the lost-wax process. Thus, (B), (C), and (D) are correct.