Cutting tools are used in machining processes to remove material from a workpiece. They are designed to cut through materials like metal, wood, and plastic to achieve desired shapes and sizes.
Which process is used to improve surface texture by removing fine layers?
A Molding
B Grinding
C Casting
D Welding
Grinding uses an abrasive wheel to remove small amounts of material from a workpiece, improving the surface finish and achieving tight dimensional tolerances. It is commonly used for finishing and polishing surfaces.
What is the purpose of additive manufacturing?
A Cutting
B Joining
C Shaping
D Layering material
Additive manufacturing, or 3D printing, builds objects layer by layer from digital designs. It allows for the creation of complex shapes and customized parts, making it ideal for prototypes and small-batch production.
What is the main advantage of using cutting fluids in machining?
A Both
B Cooling
C Cleaning
D Lubrication
Cutting fluids provide both lubrication and cooling during machining processes. They help reduce friction, prevent overheating of cutting tools, and improve surface finishes by removing heat and debris from the cutting zone.
Which of these is a key property of cutting tools?
A Flexibility
B Corrosion resistance
C Hardness
D Ductility
Cutting tools must be hard enough to withstand the stresses and wear associated with cutting materials. Hardness ensures that the tool maintains its sharpness and does not deform during operation, leading to higher precision.
What is the purpose of surface finishing in manufacturing?
A Cooling
B Improving appearance
C Shaping
D Joining
Surface finishing involves processes like polishing, grinding, and coating that improve the aesthetic appearance, surface smoothness, and resistance to corrosion of parts, enhancing both their functional and visual qualities.
What does CNC stand for?
A Cutting Numerical Control
B Continuous Numerical Control
C Computerized Network Control
D Computer Numerical Control
CNC stands for Computer Numerical Control, which refers to automated machine tools controlled by computers. It allows precise and repeatable machining operations, making it ideal for producing complex parts with high accuracy.
Which process involves adding layers of material to create a part?
A Molding
B Casting
C Additive manufacturing
D Forging
Additive manufacturing, also known as 3D printing, creates parts by depositing material layer by layer based on a digital model. This allows for highly customized and complex parts that would be difficult to make using traditional methods.
Which tool is commonly used for cutting or shaping metal?
A Lathe
B File
C Saw
D Hammer
A lathe is a machining tool used for shaping and cutting metal, wood, or other materials. The workpiece is rotated, and a cutting tool is applied to remove material and shape it into the desired form.
What is the primary function of a drill in machining?
A Removing chips
B Shaping
C Cutting
D Boring holes
Drills are primarily used to create round holes in a workpiece. They rotate and cut into the material, removing chips and creating holes of varying diameters and depths.
Which process uses a die to form parts?
A Casting
B Forging
C Stamping
D Molding
Stamping uses a die to shape sheet metal by applying pressure to it. The die cuts, bends, or embosses the metal to form specific shapes, often used in industries like automotive and electronics.
What is the main function of a cutting tool?
A Remove material
B Shape the material
C Cool the workpiece
D Hold the workpiece
Cutting tools are used in machining processes to remove material from the workpiece. They come in various shapes and sizes and are designed to cut through materials like metal, wood, or plastic efficiently.
What does the term “casting” involve?
A Removing material by cutting
B Shaping metal by heating
C Molding material into shapes
D Shaping by applying force
Casting is the process where molten material is poured into a mold to form a part. The material solidifies, taking the shape of the mold. It is commonly used to produce complex parts, especially in metalworking.
What is the goal of surface grinding?
A Smoothing
B Joining
C Hardening
D Shaping
Surface grinding is a finishing process used to smooth the surface of a workpiece. An abrasive wheel removes small amounts of material to achieve a fine surface finish, often used in high-precision applications.
Which process is used to join metal parts by applying heat?
A Milling
B Welding
C Stamping
D Casting
Welding involves applying heat to melt the edges of metal parts and joining them together. It is used in various industries to create strong, permanent bonds between metal components for structures and machinery.