Question: What Is A Live Centre Lathe?

What is the function of the live Centre on a lathe?

The primary use of a center is to ensure concentric work is produced; this allows the workpiece to be transferred between machining (or inspection) operations without any loss of accuracy.

A part may be turned in a lathe, sent off for hardening and tempering and then ground between centers in a cylindrical grinder..

How is the work mounted on centers?

CENTERING THE WORK. To center round stock where the ends are to be turned and must be concentric with the unturned body, mount the work on the head spindle in a universal chuck or a draw-in collet chuck If the work is long and too large to pass through the spindle, use a center rest to support one end.

Why lathe Centres are made of very hard materials?

4. Why lathe centres are made of very hard materials? Explanation: Lathe centres are made of very hard to resist these both things-deflection and wear. The dead centre is subjected to wear due to friction.

How can you specify a lathe?

In order to specify a lathe completely, the following specifications should be included:(a) Height of centres (b) Type of bed, i.e. straight, semi-gap, or gap type (c) Centre distance.(a) Swing over bed. … (a) Spindle Speeds Range, (b) Spindle Nose (Type), (c) Spindle bore, (d) Taper in nose.More items…

Why is it important to locate the center carefully?

It is very important that the work to be turned is carefully centered. If this is not done then a big chip will be removed from one side of the diameter and a small chip from the opposite. This unevenness of cut takes more time and may cause inaccuracy.

Who is father of lathe machine?

David WilkinsonDavid Wilkinson (January 5, 1771 – February 3, 1852) was a U.S. mechanical engineer who invented a lathe for cutting screw threads, which was extremely important in the development of the machine tool industry in the early 19th century.

What is the difference between a live center and a dead center when these terms are used in the context of workholding in a lathe?

What is the difference between a live center and a dead center, when these terms are used in the context of work holding in a lathe? … The centers you refer to are used in the tailstock of a lathe to support the free end of a workpiece. The other end is clamped in the chuck.

How do you use a dead center on a lathe?

The proper use or method to use both DEAD and LIVE Centers is when turning a part between centers. Remove the chuck from the lathe and insert a DEAD CENTER in the SPINDLE NOSE. Use the LIVE CENTER in the TAILSTOCK.

What are the main parts of lathe machine?

The main parts of the lathe are:Headstock: The headstock is usually located on the left side of the lathe and is equipped with gears, spindles, chucks, gear speed control levers, and feed controllers.Tailstock: … Bed: … Carriage: … Lead Screw. … Feed Rod. … Chip Pan. … Hand Wheel.

What is the difference between headstock and tailstock?

A tailstock, also known as a foot stock, is a device often used as part of an engineering lathe, wood-turning lathe, or used in conjunction with a rotary table on a milling machine. … A tailstock has a Dead Center, while headstock has Live Center.

What does dead center mean?

The dead center is the position of an engine’s piston when it is at the very top or bottom of its stroke. The maximum travel of the piston between the two dead centers is the stroke.

What is Centre height of lathe?

212-250 mmMedium Duty Lathe Machine, Height Of Centre: 212-250 MmHeight Of Centre212-250 mmMax Swing Over Bed410-490 mmMax Swing Over Slide240-320 mmSpindle Nose6 TPIPower Required2 HP

What is meant by Straight turning?

[′strāt ′tərn·iŋ] (mechanical engineering) Work turned in a lathe so that the diameter is constant over the length of the workpiece.

What is a lathe live center?

A live center is similar, but the shaft has a bearing that allows it to turn. For example, in my lathe, the tail stock has a Morse taper, in which I put a live center. The tenon fits in the Morse taper, and it has a bearing assembly with a conical point on the other end that is free to spin. (source: Z Live Center)

What is the difference between a live center and a dead center on a lathe?

A center holds the work during rotation at the tailstock end of the lathe. A live center is mounted in bearings and rotates with the work, while a dead center does not rotate – the work rotates about it.