hello friend i am utsav busa today i going to share a knowledge about what type of operation is possible on the lathe machine and what are the type of tools is use at time of doing operation on lathe.
here i am going to discuss operation wise what type operation is done in lathe and what type job will be use so go on further.
here is the list of operation is use in lathe
- Facing
- Turning
- Boring
- Drilling
- Reaming
- Counter boring
- Knurling
- Chamfering
- Grooving
- Parting off
- Forming
- Taper Turning
- Threading
- Undercutting
- Eccentric Turning
Facing: It is the first operation that is done on the work piece. It is a machining operation which is done to produce flat surfaces at the ends of the work piece. This operation is performed by feeding the perpendicular to the axis of.
Figure 1 – Facing
Turning: In turning operation, the excess material is removed from the surface of the work piece to produce a cylindrical surface of desired shape and size. During the turning operation, the feed is moved along the axis of rotation of the chuck. It reduces the diameter of the cylindrical work piece.
Figure 1.2 – Turning
Boring: The process of removing material from hole of the work piece is called boring. Boring is the process of increasing the diameter of a predrilled hole. Holes are bored with the help of single point cutting tool.
Figure 1.3 – Boring
Drilling: It is the process of making holes in the work piece by the use of drills. The drill is held in the tailstock and the drilling operation is done by advancing the drill in the work piece by rotating the handle of the tailstock.
Reaming: The process of enlarging the holes to accurate sizes is called reaming. Reaming is always performed after drilling operation.
It is similar to the drilling process. The reamer is held in the tailstock to carry out reaming operation.
Figure 1.5 – Reaming
Counter boring: The process of boring a hole to more than one diameter on the same axis is called counter boring. This operation is performed
by boring tool.
Figure 1.6 – Counter Boring
Knurling: It is the process of making indentations (recess or sharp depression) on the border of a work piece. The knurling operation is done to provide a better grip to the job. It is performed by the knurling tool. The knurling tool is pressed against the job to perform the knurling operation.
Figure 1.7 – Knurling
Chamfering: Chamfering is the process of bevelling the extreme ends of a work piece. It is done in order to remove the burrs, to protect the end of the work piece from being damaged and to have a better look.
Figure 1.8 – Chamfering
Grooving: The process of creating a narrow slot on the work piece is called grooving. It is also known as recessing or necking. Grooving can be performed on face as well on internal diameter.
Figure 1.9 – Grooving
Parting off: It is the process of cutting a work piece into two pieces after it has been machined to the required shape and size. Cutting tool is directly plunged into the work piece, perpendicular to the axis of rotation of work piece.
Figure 1.10 – Parting Off
Forming: It is process in which a convex, concave or any irregular surface is formed on the work piece with the help of a forming tool.
Forming tool having the required shape is used to perform forming operation.
Figure 1.11 – Forming
Taper Turning: It is the process in which a conical shape is produced on the work piece. During taper turning the feed is set at an angle to the work piece.
Figure 1.12 – Taper Turning
Threading: Threading operation uses a single-point tool to produce a thread on a cylinder or a cone. The threads can be cut to a specified length and pitch and may require multiple passes to be formed.
Threading operation can be performed on external as well as internal surfaces.
Figure 1.19 – Threading
Undercutting: In the undercutting operation, we enlarge the diameter if done internally and decrease the diameter if done externally. It is done at the end of the hole, near the stepped shoulder of a cylindrical surface and at the end of a threaded portion in blot.
Figure 1.20 – Undercutting
Eccentric Turning: It is a turning operation in which turning is performed at different axis on single setting of job. This method of turning is generally used to produce crankshafts and camshafts.
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