In metal machining, the zone where the maximum heat is generated due to the plastic deformation of metal, is called
Friction zone
Work-tool contact zone
Shear zone
None of these
- Ceramic tools are fixed to tool body by
- Which of the following statement is incorrect with reference of lathe cutting tools?
- Which of the following statement is correct as regard to up milling?
- Gear lapping is an operation
- Negative rakes are used for
- The tool life in case of a grinding wheel is the time
- A mandrel is used to hold
- Which one of the following is a solid state joining process?
- What is the type of welding defect is caused due to stresses on heating and cooling called?
- Which of the following statement is correct for oblique cutting system?
- Glazing in grinding wheels takes place when the
- Threading is an operation of
- The drill spindles are provided with standard taper known as
- In a particular type of welding, flux is prepared in the form of a coarse powder and granulated flux…
- In up milling, the thickness of chip is
- The point angle of a drill, for drilling stainless steel, is
- For harder alloy steel, the point angle of the drill is kept
- The tap used to cut threads in a blind hole is
- When two main plates are kept in alignment butting each other and riveted with cover plate on both sides…
- In machining metals, chips break due to __________ of work material.
- Slow speed of the spindle is necessary in
- A grinding wheel is said to be of _________ if it holds the abrasive grains more securely.
- Cast iron during machining produces
- Down milling is also called
- The method of grinding used to produce internal cylindrical holes and tapers, is
- A fine grained grinding wheel is used to grind
- Any number of equal divisions can be obtained on milling machine by
- In plunge grinding
- In drilling operation, the metal is removed by
- Crater wear is predominant in