It machines the given work piece in to required product by employing turning effect. Thread cutting mechanism. This is similar to the speed lathes but the head stock is little robust in construction. Lathe NC, CNC This further sub classification is according to special features such as method of drive, method of chucking, capacity and number and arrangement of tool slides etc. Milling Machines 2. shows the different parts of engine lathe or central lathe. It is combination of many parts which works together to perform a desire function. A tool with a certain rake angle a (positive as shown) and relief angle moves along the surface of the workpiece at a depth t 1. tapered work. 13.4.2. A lathe machine is used to machine cylindrical work piece which is 360 degree symmetrical form the axis of rotation. It is generally used in order to machine the entire length of a hollow job. Carriage 5. CNC : Computerised Numerical Control (Computer + Numerical Control) •Numerical control is a programmable automation in which process is controlled by Numbers, Letters, and symbols. Lathe Dogs /Carrier • A lathe dog ( lathe carrier) is a device that clamps around the workpiece and allows the rotary motion of the machine's spindle to be transmitted to the workpiece. Names of commonly used machine tools: 1. The basic lathe that was designed to cut cylindrical metal stock has been developed further to produce screw threads. Tailstock 4. Chapter 17: Cutting Tool Applications — Grinding Methods and Machines. The rapid-reduction lathe, shown in Fig. A Rapid Reduction Lathe. Bed. 1 In addition to it, there are some special purpose machines e.g.

Grinding is an another type of machining process which is used to for finishing purpose. The bed of a lathe machine is the base on which all other parts of lathe … This process is used as secondary machining process because it is always done after a primary machining on other machine tool like lathe, milling machine … Feed mechanism 6.

A lathe operates on the principle of a rotating workpiece and a fixed cutting tool. In lathes tools have either longitudinal or transverse motion or cross feed. Bed 2. bar turret lathe, chucking turret lathe, vertical lathe etc. Drilling machines, 7.

Singh Associate Professor (Workshop) Indian School of Mines Dhanbad Manufacturing Processes Material Removal Processes (Machining) Joining Processes (Welding, Brazing, Soldering) Casting Processes Forming Processes. The major parts of lathe machine are given as under: 1.

Carriage 5. Fig.

The origin of lathe started around 13th century when the Egyptians first developed a two- person lathe. 3. Dr. N.K. Fig. Lathe machine operations performed by holding the work by a chuck or a faceplate or an angle plate are: Drilling: Drilling is the operation of producing a cylindrical hole in a workpiece. Today we will discuss about main type of grinding machine. Lathe machines, 6. Introduction to Turning Tools and their Application Identification and application of cutting tools for turning The variety of cutting tools available for modern CNC turning centers makes it imperative for machine operators to be familiar with different tool geometries and how they are applied to common turning processes. 2. This Slide Share focuses on the different types of lathe machines, their industry specific designing and applications. The following are some of the important Parts of lathe machine The major parts of lathe machine are given as under: 1. The name engine is kept as in the past steam engines are used for running these lathes. •CNC Machining is a process used in the manufacturing sector that involves the use of computers to control machine tools like lathes, mills and grinders. presentation on lathe machine 1. The cutting tool is feed into the workpiece, which rotates about its own axis, causing the workpiece to be formed to the desired shape. A rest is a lathe device, which supports a long slender job, when it is turned between centers or by a chuck, at some intermediate point to prevent bending of the job due to its own weight and vibration set up due to … Feed mechanism 6. This resource provides info about Lathes and Classification of Lathes. Contents show The drilling ... As regards its importance it is second only to the lathe machines. Engine lathe It is the most commonly used lathe and is of high importance in lathe family.

Bed 2. Machine Tools. 1. In a lathe the work piece revolves along with the chuck to which the motor is connected by various gears and shafts. Drilling Machine. Lathe with different lengths from 0.5 meters to 12 meters. The bed of a lathe machine is the base on which all other parts of lathe are mounted. Unit 3 machining operations ppt 1. Rests. vertical lathe machine for large and heavy parts. This article is all about drilling machine, Parts of drilling machine, Types of drilling machine, Tools and operations of the drilling machine.

Lathe can be defined as a machine tool which holds the work between two rigid and strong supports, called centres, or in a chuck or Face plate while the lathe revolves. about 3000 years ago by bow drills. Lathe is one of the oldest machine tool. • A carrier is most often used when turning between centers on a lathe. automatic machines for high production.