Exploring Manufacturing Processes

What is the primary purpose of the casting process?

• To recycle old materials into new products.

• To create objects by shaping liquid material in a mold.

• To purify liquid metals for better quality.

• To cool down hot materials for storage.

Identify a manufacturing process that involves shaping material using heat and pressure.

• Welding

• Casting

• Forging

• Milling

What material property is most important for machining processes?

• Hardness

• Ductility

• Thermal conductivity

• Electrical resistivity

Which manufacturing process is best suited for producing large quantities of identical parts?

• Custom manufacturing

• 3D printing

• Mass production

• Batch production

Evaluate the tensile strength of a material. Why is it important in manufacturing?

• Tensile strength measures the temperature at which a material melts.

• Tensile strength is the maximum stress a material can withstand while being stretched or pulled before breaking.

• Tensile strength is the weight a material can support without bending.

• Tensile strength is the amount of time a material can last under pressure.

What is the difference between additive and subtractive manufacturing?

• Additive manufacturing removes material; subtractive manufacturing adds material.

• Both processes involve the same techniques and materials.

• Additive manufacturing is faster than subtractive manufacturing.

• Additive manufacturing adds material; subtractive manufacturing removes material.

Name a process that uses a mold to create parts from liquid material.

• Molding

• Forging

• Extrusion

• Casting

How does the hardness of a material affect its machinability?

• Harder materials reduce machinability, making cutting more difficult and increasing tool wear.

• Harder materials require less tool wear during machining.

• Harder materials improve machinability by making cutting easier.

• Machinability is unaffected by the hardness of a material.

What is the role of heat treatment in altering material properties?

• Heat treatment alters material properties by changing their microstructure through controlled heating and cooling.

• Heat treatment is used to increase the weight of materials.

• Heat treatment is a process that only affects the surface of materials.

• Heat treatment makes materials more brittle and less ductile.

Identify a manufacturing process that is commonly used for metals.

• Forging

• Molding

• Welding

• Casting