Question

Which of the manufacturing processes is/are required to make a typical stainless steel spoon out of sheet metal?

• A. Casting
• B. Forming
• C. Brazing
• D. Blow moulding

Hint:

Associate common manufacturing processes with their primary materials and outcomes. Casting is for molten metal. Forming is for shaping solid metal (sheets, rods). Brazing/Welding is for joining metal. Blow moulding is for hollow plastics.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
The question asks for the appropriate manufacturing process to create a stainless steel spoon from a flat piece of sheet metal. We need to understand the characteristics of the listed processes to determine which one is suitable for shaping solid metal sheets.

Step 2: Detailed Explanation:


A. Casting: This process involves pouring molten metal into a mold and letting it cool and solidify. It is used to create complex shapes from scratch, not to shape an existing sheet of metal.
B. Forming: This is a broad category of processes that use mechanical forces (like pressing, stamping, or bending) to shape metal without adding or removing material. To make a spoon from sheet metal, a blank (a flat shape of the spoon) is first cut out. Then, it is placed in a die and pressed with immense force to give it the curved shape of the bowl and handle. This is the standard method.
C. Brazing: This is a joining process where two or more metal items are joined together by melting and flowing a filler metal into the joint. It is used for assembly, not for shaping a single object like a spoon.
D. Blow moulding: This process is primarily used for making hollow plastic parts, such as bottles. A heated plastic tube is inflated into a mold. It is not used for working with sheet metal.

Step 3: Final Answer:
The correct process for shaping a spoon from sheet metal is forming.