Industrial and Product Design Industrial and Product Design Materials & Manufacturing

Question 1

Which material property describes a material's ability to be drawn into a wire without breaking?

Accepted Answer

Ductility

Answer

Ductility is the property that allows a material to deform plastically under tensile stress, enabling it to be drawn into a wire.

Question 2

In injection molding, what is the term for the channel through which molten material enters the mold cavity?

Accepted Answer

Sprue

Answer

The sprue is the primary channel that delivers molten material from the injection unit into the runner system of the mold.

Question 3

Which manufacturing process uses a rotating cutting tool to remove material from a stationary workpiece?

Accepted Answer

Milling

Answer

Milling uses a rotating multi-point cutter to remove material from a stationary or slowly moving workpiece to create flat or complex surfaces.

Question 4

What does the term 'design for manufacturability' (DFM) primarily aim to achieve?

Accepted Answer

Reduce production costs and simplify fabrication

Answer

DFM is a design approach focused on simplifying the manufacturing process to reduce costs, defects, and production time.

Question 5

Which polymer type can be repeatedly melted and reshaped without significant chemical change?

Accepted Answer

Thermoplastic

Answer

Thermoplastics soften when heated and harden when cooled, making them recyclable and suitable for injection molding processes.

Industrial and Product Design Practice Test