PRESENTATION ONDIFFERENT TYPES OF MACHINES,SPUR GEAR MAKING &SINGLE POINT CUTTING TOOL.

SUBMITTED TORATAN KUMAR DAS.

CHITTAGONG UNIVERSITY OF ENGINEERING & TECHNOLOGY

PRESENTED BY Bappy Tarafdar (1303092) Rajib Chandra Nath (1303093) Muntasir Mahmood Kadery (1303094) Sourav Kanti Bhattacharjee (1303095) Reshad IBN Momin (1303096)

DIFFERENT TYPES OF MACHINE MILLING MACHINE DRILLING MACHINE LATHE MACHINE GRINDING MACHINE SHAPER & PLANER MACHINE

MILLING MACHINE

WHAT IS MILLING MACHINE?

Milling machine is a machine by which we can remove metal from the work piece through a rotating cutting tool .

FIGURE: MILLING MACHINE

TYPES OF MILLING MACHINE Column and knee type milling machines Bed type milling machines Planer type milling machines Special purpose milling machines

1.COLUMN AND KNEE TYPE MILLING MACHINE:

a)Vertical milling machine

b)Horizontal milling machine

2.BED TYPE MILLING MACHINE:(a) Manufacturing or Fixed Bed Type Milling Machine(b) Horizontal Bed Type Milling Machines(c) Vertical Bed Type Milling Machine

3.PLANER TYPE MILLING MACHINE:

4.SPECIAL TYPE MILLING MACHINE: Rotating Table Milling Machine Drum Type Milling Machine Tracer Controlled Milling Machine Thread Milling Machines Key-Way Milling Machine Skin and Spar Milling Machines Planetary Milling Machine

MILLING OPERATIONS Plain milling Angular milling

MILLING OPERATIONS Face milling End milling Slab milling

SPECIFICATIONS OF MILLING MACHINE

Size of the work table: expressed in length x width Eg: 1500 x 30mm.

Longitudinal movement: Total movement of table in mm(X-direction). Eg:800mm

Transverse movement: Total movement of saddle along with table in mm(Y-direction). Eg:200mm

Vertical movement: Total movement of table, saddle & knee in mm mm(Z-direction). Eg:380mm

Range of the speed: Speed variation in the gear box in RPM. Eg: 45 to 200 rpm.

Power capacity of the motor in HP. Eg: 2 HP

DRILLING MACHINE

WHAT IS DRILLING MACHINE ?

Drilling machine is a machine by which we can make a cylindrical hole on solid body with a cutting tool.

FIGURE: DRILLING MACHINE

TYPES OF DRILLING MACHINE Portable drilling machine

Radial drilling machine

SENSITIVE DRILLING MACHINE

Fig: Bench Mounted Fig: Floor Mounted

Multispindle drilling machine

Gang drilling machine

VARIOUS TYPES OF DRILLING OPERATION

DRILLING BORING REAMING TAPPING COUNTER BORING COUNTER SINKING SPOT FACING

SPECIFICATION OF A DRILLING MACHINE Drilling capacity Distance between spindle and column (maximum

and minimum), in case of radial drilling machine Transverse of spindle Minimum distance between spindle and table Minimum distance between spindle and base

plate Working surface of table (i.e., diameter) Range of spindle speeds Motor speed, and Motor power

LATHE MACHINE

WHAT IS LATHE MACHINE?

Lathe is a machine , which removes the metal from a piece of work to the required shape & size by the rotation of spindle. A cutting tool is used to remove the metal.

FIGURE : LATHE MACHINE

THE MAIN PARTS OF LATHE MACHINE Machine bed Head stock Tail stock Carriage

TYPES OF CHUCK

WORKING PRINCIPLE OF LATHE

VARIOUS TYPES OF LATHE MACHINE CENTRAL LATHE . CNC LATHE. TURRET LATHE. GANG-TOOL LATHE. MULTISPINDLE LATHE. COMBINATION LATHE.

OPERATION PERFORMED ON LATHE MACHINE Facing Plain Turning Step turning Tapper turning Drilling Reaming Boring Grooving

LATHE SPECIFICATIONS Distance between centers Swing over the bed Swing over the cross slide Horse power of the motor Number of speeds Number of feeds

GRINDING MACHINE

WHAT IS GRINDING MACHINE?

A grinding machine is such type of machining using an abrasive wheel as the cutting tool .It is used to finish the work piece that must show high surface quality.

FIGURE: GRINDING MACHINE

VARIOUS TYPES OF GRINDER Surface grinder. Cylindrical grinder. Bench grinder. Belt grinder. Die grinder. Gear grinder.

SPECIFICATION OF GRINDING WHEEL

The grinding wheel is specified under 300 x 30 x 35w A36M5517

OPERATION PERFORMED ON GRINDING MACHINE Polishing Buffing Lapping Honing Super finishing

SHAPER MACHINE

FIGURE: SHAPER MACHINE

SPECIFICATIONS Maximum vertical and horizontal travel of the

table. Size of the table, i.e. length, width and depth

of the table. Maximum number of strokes per minute. Power of the drive motor.

AREA OF APPLICATION:

Machining flat surfaces in different planes. Flat surfaces are produced by single point cutting tools in horizontal, vertical and inclined planes.

Making features like slot, steps etc. which are also bounded by flat surfaces.

Forming grooves bounded by short width curved surfaces by using single point but form tools.

Some other machining applications of shaper are cutting external keyways and splines, smooth slitting or parting, cutting teeth of rack for repair etc.

PLANER MACHINE

FIGURE: PLANER MACHINE

SPECIFICATIONS: Length of bed. Length of the table. Type of drive. Power of the motor.

AREA OF APPLICATION:

The common machining works are those which are also done by shaping machine.

Machining the salient features like the principal surfaces and guide ways of beds and tables of various machines like lathes, milling machine, grinding machines etc.

Besides the general machining work, some other critical work like helical grooving on large rods and wide 2-D curved surfaces etc. can also be made if needed.

SPUR GEAR MAKING

WHAT IS GEAR?

Gear is one of the machine tool elements which is an integral and inevitable part of power transmission system.

NOMENCLATURE OF SPUR GEAR Addendum: Radial distance between the

addendum circle and pitch circle.

Deddendum: Radial distance between pitch circle and root circle.

Flank: Portion of the gear tooth between its pitch circle and root circle.

Clearance: Distance between the top of the tooth and the bottom of the tooth.

REQUIRED TOOLS BENCH VICE FILE MENDREL

REQUIRED MACHINES Lathe Machine Milling Machine

PROCEDURE•The round shape job is needed

•The job is clamped on the center chuck of lathe machine

•Both the faces of the job are facing with single point cutting tool of lathe

•Reduce the diameter of the job

PROCEDURE (CONT.)•Hold the job with mandrel and placed it in the bench vice

•Then the job is placed on the milling machine

•Then the gear cutting process occured

•Finally the gear is filled to get a clean and smooth surface

INDEXING

PRECAUTION Safety dress codes are maintained All the electric connections are checked Proper working fluid are need to use Rotation of crank is counted very carefully to

maintain equal distance of the teeth All the machines are to be shuted down after

making this

APPLICATION Automotve Power transmission distributors Electronics Printing Robotics Marine steering

Etc………

SINGLE POINT CUTTING TOOL

WHAT IS SINGLE POINT CUTTING TOOL

The cutting tool which cut the work piece with a single point is called Single Point Cutting Tool. It must be made of stronger material than the material of work piece.

NOMENCLATURE OF SINGLE POINT CUTTING TOOL Shank Flank Face Base Nose Cutting edge

TOOL GEOMETRY Side cutting edge angle End cutting edge angle Back rack/Front rack/Top rack angle Side rack angle Front clearance angle/End relief angle Side clearance angle/relief angle Lip angle/cutting angle

TOOL GEOMETRY (CONT.)

REQUIRED MACHINE Grinding Machine

REQUIRED TOOL File

PROCEDURE•Grind top surface

•Grind side relief angle

•Grind front relief angle

•Grind nose radius

•Surface finishing by File

N.B. • Keep the job constantly in motion• Follow drawing specification

PRECAUTION Wear apron and eye protector glass Keep the finger well back from grinding

wheel Never hold the job with cloth Cooling the work piece

THANK YOU

If you have any query, feel free for asking questions.