2A751 CDC Vol. 2 Questions and
Answers Already Passed
What is the primary purpose of grinding in machining processes?
✔✔ To achieve a smooth surface finish and precise dimensions.
What type of grinding wheel is best suited for hardened steel?
✔✔ A wheel with aluminum oxide or cubic boron nitride (CBN).
Why is coolant used during grinding operations?
✔✔ To reduce heat, prevent thermal damage, and improve tool life.
What is the term for the measurement of material removed during a grinding pass?
✔✔ Depth of cut.
What is the function of a dressing tool in grinding?
✔✔ To restore the shape and sharpness of the grinding wheel.
1
,Why is proper wheel balance critical in grinding operations?
✔✔ To minimize vibration and ensure a smooth surface finish.
What does the term "feed rate" refer to in grinding?
✔✔ The rate at which the workpiece moves under the grinding wheel.
What is a common material used for grinding wheels designed to work on non-ferrous metals?
✔✔ Silicon carbide.
What does the "grit size" of a grinding wheel determine?
✔✔ The level of surface finish and material removal rate.
Why is it important to inspect grinding wheels before use?
✔✔ To check for cracks or damage that could cause breakage during operation.
What is the term for grinding the inside diameter of a cylindrical workpiece?
✔✔ Internal grinding.
2
, What is the primary advantage of using centerless grinding?
✔✔ It eliminates the need for a workholding device, increasing production efficiency.
Why is surface grinding used in precision machining?
✔✔ To produce flat, smooth surfaces with high accuracy.
What is the purpose of the spindle in a grinding machine?
✔✔ To rotate the grinding wheel at high speed.
What type of grinding process is used to shape gears?
✔✔ Form grinding.
What does the term "wheel dressing" achieve in grinding?
✔✔ It removes embedded debris and ensures the wheel maintains its cutting efficiency.
Why is the selection of grinding wheel hardness important?
✔✔ To match the material being ground and prevent excessive wear or damage.
3
Answers Already Passed
What is the primary purpose of grinding in machining processes?
✔✔ To achieve a smooth surface finish and precise dimensions.
What type of grinding wheel is best suited for hardened steel?
✔✔ A wheel with aluminum oxide or cubic boron nitride (CBN).
Why is coolant used during grinding operations?
✔✔ To reduce heat, prevent thermal damage, and improve tool life.
What is the term for the measurement of material removed during a grinding pass?
✔✔ Depth of cut.
What is the function of a dressing tool in grinding?
✔✔ To restore the shape and sharpness of the grinding wheel.
1
,Why is proper wheel balance critical in grinding operations?
✔✔ To minimize vibration and ensure a smooth surface finish.
What does the term "feed rate" refer to in grinding?
✔✔ The rate at which the workpiece moves under the grinding wheel.
What is a common material used for grinding wheels designed to work on non-ferrous metals?
✔✔ Silicon carbide.
What does the "grit size" of a grinding wheel determine?
✔✔ The level of surface finish and material removal rate.
Why is it important to inspect grinding wheels before use?
✔✔ To check for cracks or damage that could cause breakage during operation.
What is the term for grinding the inside diameter of a cylindrical workpiece?
✔✔ Internal grinding.
2
, What is the primary advantage of using centerless grinding?
✔✔ It eliminates the need for a workholding device, increasing production efficiency.
Why is surface grinding used in precision machining?
✔✔ To produce flat, smooth surfaces with high accuracy.
What is the purpose of the spindle in a grinding machine?
✔✔ To rotate the grinding wheel at high speed.
What type of grinding process is used to shape gears?
✔✔ Form grinding.
What does the term "wheel dressing" achieve in grinding?
✔✔ It removes embedded debris and ensures the wheel maintains its cutting efficiency.
Why is the selection of grinding wheel hardness important?
✔✔ To match the material being ground and prevent excessive wear or damage.
3
