What are the different operations performed on the lathe?

Introduction

Turning is a machining operation that uses a single-point tool to create round components on lathes. To make complicated rotating forms, the tool is fed either linearly in a direction parallel or perpendicular to the workpiece’s axis of rotation, or along a predetermined route. The rotation of the workpiece is the primary cutting action in turning, while the feed motion is the secondary cutting motion.

Turning Operation

The figure shows a schematic representation of a simple turning process, including the depth of cut d, feed f, and spindle rotation N in rev/min.

Cutting conditions in turning

The turning cutting speed V in m/s is linked to the rotating speed of the workpiece by the equation V = πDN.
Where D is the workpiece’s diameter and N is the workpiece’s rotating speed.

Operations in turning

Turning

To decrease a part’s diameter to the desired dimension. Straight, conical, curved, or grooved workpieces such as shafts, spindles, and pins are produced using this method.

Different turning operations

Facing

A lathe may be used to precisely create a smooth, flat face perpendicular to the axis of a cylindrical component. A smooth machined surface is created by feeding the tool radially or axially. Face grooving creates grooves for uses such as O-ring seating.

Facing Operation

Knurling

It does not entail the removal of any content. It is instead a metal forming technique used to create a regular crosshatched pattern (regular shaped roughness) on a cylindrical surface. It can be used as a grip.

Knurling Operation

Drilling

Boring may be used after producing a hole to increase its dimensional accuracy and surface polish.

Drilling Operation

Boring

To expand an already created hole or cylindrical hollow, or to create circular interior grooves.

Boring Operation

Grooving

Grooving operation

Cutting with form tool

To create a variety of axisymmetric forms for utilitarian or aesthetic reasons.

Form-tool operation

Parting

To cut a portion off the end of a component, as is done in the creation of slugs or blanks for further processing into discrete products, is also known as cutting off.

Parting Operation

Contour turning (profiling)

Although the cutting tool has a basic form, the feed action is complicated; the cutting tool is fed along a contour, resulting in a contoured shape on the workpiece. Profiling necessitates the use of specialized lathes or equipment.

Contour turning operation

Threading

A thread can be made in a variety of ways using a lathe. Lathes are used to cut threads by advancing the cutting tool at a feed rate that is exactly equal to the thread pitch. A helical band, which is essentially a thread, is cut in with the single-point cutting tool.

Threading Operation

Helping Hands.

About the author

pondabrothers

View all posts

Leave a Reply

Your email address will not be published. Required fields are marked *