Question

Correct order adopted for making sculptures through lost wax process-
(A) Application of the facing
(B) Modelling the wax form over the core
(C) Preparation of the core
(D) Melting and pouring the metals
(E) Application of the negative mold investment material
Choose the correct answer from the options given below:

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

Hint:

Think of lost-wax casting as building from the inside out: Core → Wax model → Investment Mold. Then, the wax is replaced by metal.

Answer 1

The Correct Option is A

Step 1: Arrange the steps of the lost-wax casting process (cire-perdue) in the correct order.

(C) Core Preparation: Begin by creating a heat-resistant inner core, usually from clay, approximating the sculpture's final form.
(B) Wax Modeling: Apply a wax layer over the core, sculpting it into the final desired sculpture shape.
(A) Facing Application: Apply a thin layer of investment material (facing) to the wax model, capturing fine details.
(E) Mold Application: Cover the entire model with a thicker investment material to create the main mold, adding sprues and vents.
(D) Metal Pouring: Heat the mold to melt and remove the wax, then pour molten metal into the resulting cavity.

Step 2: Identify the correct sequence from the provided options. The correct order is (C), (B), (A), (E), (D), matching option (1).