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Presentation report on

TOOL INSPECTION

Submitted By

TOSHANG SHARMA(1211444)

TUSHAR BATRA(1211445)

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Various Tool Room Machines

MILLING MACHINESURFACE GRINDING MACHINELATHEDRILLING MACHINESHAPER MACHINE

Various Inspection Devices

INDICATOR

MICROMETERVERNIER CALLIPERGO-NO GO GAUGEROCKWELL HARDNESS TESTER

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MILLING MACHINE

Milling is the machining process of usingrotary cutters to remove material from aworkpiece advancing (or feeding ) in adirection at an angle with the axis of the tool.

Classified generally as:

1.Vertical Milling

2.Horizontal Milling

Many horizontal mills also feature a built-in rotarytable that allows milling at various angles; thisfeature is called a uni ver sal table .

Milling Cutters:

1.End mill

2.Ball nose cutter

3.Hob

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Surface Grinding

Surface grinding is used to produce asmooth finish on flat surfaces. It is a widelyused abrasive machining process in which aspinning wheel covered in rough particles(grinding wheel) cuts chips of metallic ornonmetallic substance from a workpiece,making a face of it flat or smooth.

Generally classified as:

1.Outer diameter grinding

2.Inner diameter grinding

Lubricants are sometimes used to cool the

workpiece and wheel, lubricate the interface,and remove swarf (chips).

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LATHE

A lathe is a machine tool which rotates the

workpiece on its axis to perform variousoperations such as cutting, sanding, knurling,drilling, or deformation, facing, turning, withtools that are applied to the workpiece tocreate an object which has symmetry about anaxis of rotation.

A tap is used to cut a female thread on theinside surface of a pre-drilled hole, while a die cuts a male thread on a preformed cylindricalrod.

Accessories

1.A steady rest

2.Live Centre

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Drilling

Drilling is the operation of producing circular hole in thework-piece by using a rotating cutter called DRILL.

The most common drill used is the twist drill.

Operations that can be performed in a drilling machine are Drilling Reaming Boring Counter boring Countersinking Tapping

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Indicator (distance amplifying instrument)

Indicators may be used to check the variationin tolerance during the inspection process ofa machined part, measure the deflection of abeam or ring under laboratory conditions.

A dial test indicator , also known as a leverarm test indicator or finger indicator , has asmaller measuring range than a standard dialindicator. A test indicator measures thedeflection of the arm, the probe does notretract but swings in an arc around its hingepoint.

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Micrometer

A micrometer sometimes known as amicrometer screw gauge, is a deviceincorporating a calibrated screw widely usedfor precise measurement of components inmechanical engineering and machining aswell as most mechanical trades, along withother metrological instruments such as dial,vernier, and digital calipers.

Micrometer thimble reading 5.78mm

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Vernier Caliper

A vernier scale is a device that lets the usermeasure more precisely than could be doneunaided when reading a uniformly-dividedstraight or circular measurement scale.

Zero error

The method to use a vernier scale orcaliper with zero error is to use the formula:

actual reading = main scale + vernier scale− (zero error).

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Go/no go gauge

Generally classified as:

1.Plug Gauge

2.Snap Gauge

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Rockwell scale

The Rockwell scale is a hardness scalebased on indentation hardness of a material.The Rockwell test determines the hardnessby measuring the depth of penetration of anindenter under a large load compared to thepenetration made by a preload.

The result is a dimensionless number notedas HRA, where A is the scale letter.

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INSPECTION OF VARIOUS PARTS

Receiver Gauge

Splined plug

Resting ringBush

Pin

Base

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1.Splined Plug

Parameter

GivenValue

MeasuredValue

Inference

Diameter 47.4 -0.18

47.338/47.340

o.k

Height 64.2+0.01

-0.01

64.190 o.K

ExtrudedHeight

0.2 0.2 o.K

Measurem-entover pin

56.148+0.05-0.00

56.250 Oversized

Angle ofextrusion

3*15 3*15 o.k

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2.Resting Ring

Parameter

GivenValue

Measured

Value

Innference

Height 10 +0.01-0.01

10.00 o.k

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3.Bush

Parameter Given

Value

Measured

Value

Inference

OuterDiameter

15H7 15.00 o.k

InnerDiameter

28 28.20 o.K

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Parameter GivenValue

MeasuredValue

Inference

Length 160 160.90 o.K

Diameterwith

GrindingOfextrusion

15.00 g6 15.991 o.K

Surfacediameterwithgrinding

15.7 f7 15.675 o.K

Innerdiameter

15 15.22 o.K

Angle 2*15 o 2*15 o o.K

Hardness Above 55 57-59 o.K

4.Pin

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5.Base

Parameter GivenValue

Measured Value

Inference

Diameter 56 56.10 o.KHeight uptogrinding top

67.9+0.02

-0.02

67.880 o.K