milling spur gears of 48 teeths using simple indexing over cast iron using vertical milling machine.

Indexing (Dividing) Head• Once one of the more important attachments for milling machine• Used to divide circumference of workpiece into equally spaced divisions when milling gear teeth, squares, hexagons, and octagons• Also used to rotate workpiece at predetermined ratio to table feed rate 2 It is now possible for ANYONE outside the IIT System to be able to do an online certification course from NPTEL and get a certificate from the IITs. CNC : Computerised Numerical Control (Computer + Numerical Control) •Numerical control is a programmable automation in which process is controlled by Numbers, Letters, and symbols.

The machine is designed to bore precision holes with accurate centre distances. Indexing or dividing_head 1. Indexing in database systems is similar to what we see in books.

Learn for free, Pay a small fee for exam and get a certificate Featured News. Marking and . The centre distances are set in a cartesian co-ordinate system. One of the important indexing operations to be performed on Milling Machine is the helical or spiral milling. The machine can be used for: a. Threading, b.

NPTEL provides E-learning through online Web and Video courses various streams. •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.

are some of the examples of this class. Almost it is capable of doing any milling operation whether it is gear milling, thread milling, angular milling etc.

MANUFACTURING TECHNOLOGY UNIT – V Machine Tools 2. Milling machine, indexing 1. Indexing … Indexing (Dividing) Head. c. Inspection of linear dimensions. In this type of milling machine the table column. Generation of flutes in twist drill, milling of helical and spiral gears, milling of worms and helical cutters, etc. Milling is a process performed with a machine in which the cutters rotate to remove the material from the work piece present in the direction of the angle with the tool axis.

Drill Fluting or Helical Milling. The knee is vertically adjustable on the column so that the table can be moved up and down to accommodate work of various heights. Helps in changing the angular position of the of the component in relation to the cutter One of the more important attachments for milling machine Used to divide circumference of workpiece into equally spaced divisions when milling gear teeth, squares, hexagons, and octagons Also used to rotate workpiece at predetermined ratio to table feed rate As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, Indexing in milling machine use, quarry, aggregate, and different kinds of minerals. Nptel is a joint initiative from IITs and IISc to offer online courses & certification.

The usual Mill consists basically of a motor driven spindle, which mounts … Manufacturing Technology Milling Introduction Milling is the process of machining flat, curved, or irregular surfaces by feeding the work piece against a rotating cutter containing a number of cutting edges. In this article you will able to learn about what is milling machine operation, parts and types.

UNIT 1 MILLING Milling Structure 1.1 Introduction Objectives 1.2 Types of Milling Machines 1.3 Working Principle of Milling Machine 1.4 Special type Milling Machines 1.5 Principle Parts of a Milling Machine 1.6 Specification of Milling Machines 1.7 Cutting Parameters 1.8 Milling Cutters 1.9 Milling Machine Operations 1.10 Indexing

With the help of the milling machines one can perform many operations and functions starting from small objects to large ones. 1 Milling by end mills shank and milling cutters is possible. These are special work holding and tool guiding device. Milling machine is the backbone of the manufacturing industries. The Indexing orDividing HeadSession 14 1 2.

So jigs and fixtures are used and serve as one of the most important facility of mass production system.

shows a simple column and knee type milling machine.

NPTEL began offering open online courses in March 2014 along with certificates from the IITs/IISc for those who completed the courses successfully. Quality of the performance of a process largely influenced by the quality of jigs and fixtures used for Manufacturing Technology 3.

Indexing is defined based on its indexing attributes. vikas rathore. The jigs and fixtures are the economical ways to produce a component in mass. Mill Machining, Milling Process, Horizontal & Vertical Milling Machines Definition.