Operations on Lathe - Basic and Advanced

Sections in Book (by Rajendra Singh, 2006)

1.Introduction

2. Types of Lathe
   
Speed lathe
Engine lathe
Bench lathe
Tool room lathe
Capstan and turret lathe
Automatic lathe
Special purpose lathes

3. Construction of Lathe Machine

4. Accessories and Attachments of Lathe

5. Specification of Lathe

6. Lathe Operations

A. Lathe operations which are performed by holding the work piece between centers or in a chuck

i) Straight turning
ii) Shoulder turning
iii) Taper turning
iv) Chamfering
v) Eccentric turning
vi) Thread cutting
vii) Facing
viii) Forming
ix) Filing
x) Polishing
xi) Grooving
xii) Knurling
xiii) Spinning
xiv) Spring winding

B. Lathe operations done holding the work piece in a chuck, face plate or angle plate
i) Undercutting
ii) Parting off
iii) Internal thread cutting
iv) Drilling
v) Reaming
vi) Boring
vii) Counter boring
vii) Taper boring
viii) Tapping

C. Operations on Lathe done using Special Attachments
i) Milling
ii) Grinding

7. Tapers and Taper Turning

There are various ways in which taper turning can be done on lathe.

i) By swiveling the compound rest.
ii) By setting over the tailstock center.
iii) By a broad nose form tool.
iv) By a taper turning attachment.
v) By combining longitudinal and cross feed in a special lathe and
vi) By using numerical control lathe.

8. Thread Cutting

Using single point tool, various threads, V, square or power threads can be cut on a lathe.
During the cut, the cutting tool must travel a distance equal to the pitch in mm as the work piece completes a revolution. This relative motion is achieved by lead screw and nut mechanism by fixing a gear ratio between head stock spindle and lead screw. The number of cuts to be made is also calculated and that many cuts are given to form the complete thread.

9. Drilling on a Lathe

Drill is head in tail stock position. The tail stock is moved closer to the work piece held in the chuck or face plate. The drill is fed into the work piece face by using the hand wheel of the tailstock.

10. Cutting Speed

Cutting speed is the rate in meters per minute at which the surface of the job moves past the cutting tool. The cutting speed has to be properly determined as slow cutting speeds result in less material removal per unit time (low productivity) and high cutting speeds which are inappropriate overheat the the tool and cutting edge fails and may require resharpening or replacement.

The following factors determine appropriate cutting speed.

i). Work piece material.
ii) Cutting tool material
iii) Cutting tool geometry
iv) Rigidity of the machine tool and job (holding method)
v) Type of cutting fluid being used.

Cutting speed in meters/min =  (22/7 that Pi)*D*N/1000
D = Diameter of the work piece in mm, actually it is average of D1 and D2, diameter of the blank and diameter of the finished work piece in the cut.
N = revolutions of the spindle or the work in Rev/minute

11. Feed

Feed is defined as the distance that a tool advances into the work during one revolution of the headstock spindle (mm/revolution or inch/rev)


A big list of articles on manufacturing processes written by Narayana Rao K.V.S.S.
https://manufacturing-videos.blogspot.com/2019/08/manufacturing-processes-revision-notes.html



Machine Shop Practice, Volume 1
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Machine Shop Practice, Volume 2
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INSTRUCTIONS TO LEARN HOW TO USE A LATHE
PAGE 1 OF 3
http://www.americanmachinetools.com/how_to_use_a_lathe.htm


Production Technology Books

R.K. Rajput
https://books.google.co.in/books?id=9nI1ngEACAAJ&printsec=frontcover#v=onepage&q&f=false


Fritz Klocke
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Robert Creese
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HMT - Page 69
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Archive Org Books
Introduction To Basic Manufacturing Processes And Workshop Technology
by Rajender Singh
2006

Advances in Production Technology [electronic resource]
by Brecher, Christian, editor;
Publication date 2015

The complete practical machinist; embracing lathe work, vise work, drills and drilling, taps and dies, hardening and tempering, the making and use of tools, tool grinding, marking out work, machine tools, etc
by Rose, Joshua
Publication date 1895

A manual of the hand lathe: comprising concise directions for working metals of all kinds, ivory, bone and precious woods; dyeing, coloring, and French polishing; inlaying by veneers, and various methods practiced to produce elaborate work with dispatch, and at small expense
by Watson, Egbert P. (Egbert Pomeroy)
Publication date 1869

Advanced

Advanced Lathe Operations Course
https://learning.hccs.edu/faculty/brian.nolen1/mchn2433


https://quizlet.com/243468509/dml-test-2-advanced-lathe-operations-flash-cards/

Precision Machining Technology
Peter J. Hoffman, Eric S. Hopewell, Brian Janes, Kent M. Sharp, Jr.
Cengage Learning, 01-Aug-2012 - Education - 608 pages


PRECISION MACHINING TECHNOLOGY has been carefully written to align with the National Institute of Metalworking Skills (NIMS) Machining Level I Standard and to support achievement of NIMS credentials.

This new text carries NIMS exclusive endorsement and recommendation for use in NIMS-accredited Machining Level I Programs. It's the ideal way to introduce students to the excitement of today's machine tool industry and provide a solid understanding of fundamental and intermediate machining skills needed for successful 21st Century careers.

PRECISION MACHINING TECHNOLOGY offers a fresh view of the role of modern machining in today's economic environment. The text covers such topics as the basics of hand tools, job planning, benchwork, layout operations, drill press, milling and grinding processes, and CNC. The companion Workbook/Shop Manual contains helpful review material to ensure that readers have mastered key concepts and provides guided practice operations and projects on a wide range of machine tools that will enhance their NIMS credentialing success.
https://books.google.co.in/books?id=kuqnZQpp724C


http://www2.mae.ufl.edu/designlab/Advanced%20Manufacturing/Advanced%20Manufacturing.htm




CNC Turning



https://www.engineering.com/AdvancedManufacturing/ArticleID/14512/An-Engineers-Guide-to-CNC-Turning-Centers.aspx


Updated on 18 August 2020
18 October 2018