CNC (Computer Numerical Control) machining is primarily used to automate the cutting process. It enables precise removal of material from a workpiece, producing high-accuracy components used in industries like aerospace and automotive.
What is die casting used to produce?
A Solid parts
B Hollow parts
C Continuous shapes
D Metal molds
Die casting is a process where molten metal is injected into a mold under high pressure to create solid parts. It is widely used to produce complex and precise components, especially in the automotive industry.
What is the purpose of powder metallurgy?
A Shaping using heat
B Creating solid parts
C Cutting metal
D Shaping using pressure
Powder metallurgy involves compacting metal powders into shapes and heating them to form solid parts. It is used for producing components that are difficult or expensive to make using traditional machining methods.
What is the function of a CNC lathe machine?
A Drilling
B Turning
C Grinding
D Cutting
A CNC lathe machine is used to perform turning operations, where a rotating workpiece is shaped by a stationary cutting tool. This process is ideal for creating cylindrical parts, such as shafts and rings.
What is the main advantage of using CNC in manufacturing?
A Lower cost
B Faster production
C Increased accuracy
D Less material waste
CNC machines provide higher precision and repeatability in manufacturing, which allows for the production of parts with tight tolerances. This leads to improved product quality and less human error in the production process.
Which material is commonly used in powder metallurgy?
A Metal powders
B Plastics
C Wood chips
D Sand
Powder metallurgy uses fine metal powders that are compacted and heated to form solid parts. It is widely used for creating parts with intricate shapes and properties that are difficult to achieve through traditional machining processes.
What is the purpose of the die in die casting?
A Cooling
B Cutting
C Drilling
D Shaping
The die in die casting is used to shape molten metal. The die, made from high-strength steel, is designed with cavities that form the shape of the final product as molten metal is injected and cooled.
What does the “CNC” in CNC machining stand for?
A Continuous Numerical Cutting
B Computerized Network Control
C Computer Numerical Control
D Controlled Numerical Cutting
CNC stands for Computer Numerical Control, which refers to the automated control of machining tools like lathes, mills, and routers. CNC machines are programmed using a computer to perform precise cutting and shaping tasks.
What is the primary purpose of heat treatment in manufacturing?
A Shaping
B Strengthening
C Cooling
D Cutting
Heat treatment involves heating a material to a specific temperature and then cooling it in a controlled manner to change its physical properties. This process increases hardness, strength, and durability, especially in metals.
What type of process is typically used for creating small, intricate parts?
A Forging
B Die casting
C Powder metallurgy
D CNC machining
Powder metallurgy is ideal for creating small, intricate parts with complex geometries. Metal powders are compressed into molds and heated, forming solid parts that are difficult to produce with traditional machining methods.
What is a key advantage of die casting over other manufacturing processes?
A High precision
B Lower material cost
C High production rate
D No need for molds
Die casting produces parts with very high precision and dimensional accuracy. This process is ideal for creating complex shapes with tight tolerances, making it suitable for industries like automotive and electronics.
Which machining operation is commonly used to create threads?
A Turning
B Milling
C Drilling
D Tapping
Tapping is a machining process used to cut internal threads into a hole. A rotating cutting tool with threads is used to create precise, uniform threads in materials like metal and plastic.
What is the purpose of a CNC router?
A Drilling
B Turning
C Milling
D Cutting
A CNC router is a computer-controlled machine primarily used for milling, which involves the removal of material using rotary cutters. It can cut a wide variety of materials, including wood, plastics, and metals.
What is the primary function of a lathe in manufacturing?
A Drilling
B Grinding
C Turning
D Cutting
A lathe is used for turning operations, where the workpiece rotates and a stationary cutting tool removes material to shape the piece. This process is ideal for creating cylindrical parts with high precision.
What material is typically used in die casting?
A Metal
B Ceramic
C Wood
D Plastic
Die casting typically uses non-ferrous metals such as aluminum, zinc, and magnesium alloys. The molten metal is injected into molds under high pressure to form precise and complex parts with a smooth finish.