Facing is a common machining process that involves the use of a lathe or milling machine to remove material from the end and/or shoulder of a workpiece . ... Either the workpiece or the cutting tool will turn, resulting in the removal material.
What is the turning operation?
Turning is the most common lathe machining operation. During the turning process, a cutting tool removes material from the outer diameter of a rotating workpiece. The main objective of turning is to reduce the workpiece diameter to the desired dimension. There are two types of turning operations, rough and finish.
What is turning and facing?
Turning is used to generate cylindrical surfaces : generation of surfaces oriented primarily perpendicular to the workpiece axis are called facing. ... The term turning, in the general sense, refers to the generation of any cylindrical surface with a single point tool.
What is a facing lathe?
Facing lathe operation
Facing on the lathe uses a facing tool to cut a flat surface perpendicular to the work piece's rotational axis . A facing tool is mounted into a tool holder that rests on the carriage of the lathe. ... Facing will take the work piece down to its finished length very accurately.
What is the difference between facing and turning operation?
In the turning operation, the tool generally reduces the diameter of the cylindrical workpiece, which can be done by cutting into the part for some depth and move the tool parallel to the axis of the part. While facing operation reduces the length of the piece , the tool is moved perpendicular to the axis of the part.
What is the purpose of jig?
a jig is a type of tool used to control the location and/or motion of another tool. A jig's primary purpose is to provide repeatability, accuracy, and interchangeability in the manufacturing of products . A device that does both functions (holding the work and guiding a tool) is called a jig.
What are turning tools?
Turning tools are used on lathes for cutting or finishing the outside diameter of a workpiece . Turning tools can be used to produce cylindrical parts. In its basic form, turning can be defined as the machining of an external surface with the workpiece rotating, or with a single-point cutting tool.
What is the difference between boring and turning?
The difference between them lies in the area of the workpiece from which the material is removed . Turning is designed to remove material from the external surface of a workpiece, whereas boring is designed to remove material from the internal surface of a workpiece.
Why is facing operation done?
Facing is an operation of machining the ends of a workpiece square with its axis. To produce a flat, square surface when facing, the lathe might be true. The purpose of facing are: To provide a true, flat surface, square with the axis of the workpieces .
What is Facingoff?
verb. faced off; facing off; faces off. Definition of face off (Entry 2 of 2) intransitive verb. : to be in or come into opposition or competition politicians facing off against each other in a televised debate .
What is meant by knurling?
1 : a small protuberance, excrescence, or knob . 2 : one of a series of small ridges or beads on a metal surface to aid in gripping.
What is the necessary condition for turning *?
What is the necessary condition for turning? a) material of work piece should be harder than the cutting tool . b) cutting tool should be harder than the material of work piece. c) hardness of the cutting tool and material of of piece should be same.
What is shoulder turning in lathe machine?
Shoulder Turning:
When a workpiece has different diameters and is to be turned, the surface forming steps from one diameter to the other is called the shoulder, and machining this part of the workpiece is called shoulder turning.
Which is cut from a workpiece?
Cutting is a technique where the operator moves a material (workpiece) such as metal and the tool in relation to each other in order to shape the workpiece into the desired form through shaving, drilling, etc.
