21 Very Short Answer Questions on Milling
Question 1. Define form milling cutter?
Answer.
Any milling cutter whose teeth have been given a special shape is known as form milling cutter.
Question 2. what is an end mill cutter?
Answer.
The end milling cutter has cutting teeth on the end as well as on the periphery with a straight or taper shank. These are used to mill flat, horizontal, vertical, bevel, chamfer and slant surfaces, grooves and keyways and to cut slot and recess such as die making etc.
Question 3. what is the use of T-slot milling cutter?
Answer.
It is used for milling T-slot in one operation and is available in special sizes for T-slots.
Question 4. what is the use of wood ruff key slot milling cutter?
Answer.
This type of cutter is used for cutting key seats in the shaft of wood ruff key.
Question 5. Define body of milling cutter.
Answer.
The part of cutter left after excluding the teeth and the portion on which the teeth are attached is known as body of cutter.
Question 6. Define cutting edge of milling cutter.
Answer.
The edge formed by the intersection of the tooth face and the circular land is known as the cutting edge. It is the only portion which touches the workpiece during a milling operation.
Question 7. Define periphery of milling cutter.
Answer.
The locus of the cutting edge of the tooth of a cutter is called its periphery.
Question 8. Define face of milling cutter.
Answer.
The portion adjacent to the cutting edge on which the chip impinges during a milling operation is called face.
Question 9. Define fillet of milling cutter.
Answer.
It is reinforcement of the cutting teeth. It is provided at the bottom of the gash which joins the face of one tooth to the back of the tooth immediately ahead.
Question 10. Define gash of milling cutter.
Answer.
The space between the back of one tooth and the face of next tooth is known as gash. It is needed for clearing the chips off the workpiece.
Question 11. Define land of milling cutter.
Answer.
The part of back of tooth adjacent to the cutting edge which is relieved to avoid interference between the surface being machined and the cutter is called land.
Question 12. Define lead of milling cutter.
Answer.
The distance of the cutter advanced in one complete revolution or turn is called lead.
Question 13. Define outside diameter of milling cutter.
Answer.
The diameter of the circle passing through the peripheral cutting edge is called outside diameter.
Question 14. Define root of milling cutter.
Answer.
The diameter of the circle passing through the bottom of the fillet is called root diameter.
Question 15. Define plain milling.
Answer.
Milling plain, flat and horizontal surfaces parallel to the axis of rotation of a plain milling cutter is called plain or surface milling. This is also known as slab milling.
Question 16. Define face milling.
Answer.
The milling operation employed for machining flat surface which is at right angle to the axis of rotating cutter is called face milling. The cutter is used in this operation is the face milling cutter.
Question 17. Define side milling.
Answer.
The milling operation is used for producing flat vertical surface on the side of a workpiece by using side milling cutter.
Question 18. Define straddle milling.
Answer.
The straddle milling is the operation used to produce flat vertical surfaces on both the sides of a workpiece using two sides milling cutters mounted on the same arbour.
Question 19. Define angular milling.
Answer.
The milling operation is used to machine a flat surface at an angle to the cutter axis other than right angle. This uses a single or double angle cutter depending on the requirement of job.
Question 20. Define end milling.
Answer.
This operation is used to machine flat surface either horizontal, vertical, or at an angle using the end mill cutter. The cutter removes material with the teeth on its periphery as well as on its end.
Question 21. Define saw milling.
Answer.
Saw milling is the operation of producing of a narrow slot or groove on a workpiece by using a saw milling cutter. The saw milling can also be performed for complete parting off operation.
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