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i.

EX.No:01 STUDY OF DRAWING STANDARDS & 2D DRAWINGS Date:

Introduction

Drawing

Drawing may be defined as the representation of an abject by systematic

lines. Ordinarily, the idea conveyed by the word drawing is a pictorial view in which

an object is represented as the eyes see it. A pictorial view shows only the outside

appearance of an object.

Engineering Drawing

Engineering drawing is a graphic language which has its own rules. It gives

complete description of an object or a machine part as regards shape, size and all other

internal details from which it can be constructed or manufactured.

Artistic Drawing

It is the art of representation of an object by an artist as per his imagination or

by keeping the object before him such as painting, advertisement board, etc.

Machine Drawing

Machine drawing may be defined as the representation of a machine

component or machine by lines according to certain set rules. A machine drawing

generally gives all the external and internal details of the machine component from

which it can be manufactured. The machining symbols, tolerances, bill of material, etc.

are specified on the drawing. The-relative positions of the different components and to

make assembly drawing are also specified. IS: 6961972 is the BIS Code for

Machine Drawing.

Codes of Practice for Engineering Drawing

In India, IS 696 code of practice for general engineering drawing was

issued in 1955 and revised in 1960 and 1972. The following are some of the important

Indian Standard Codes used for machine drawing.

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Code Description

IS: 11667 - 1985 Indications of linear and angular tolerance on technical drawings

IS: 11065 (Part- 1)- 1984 Drawing practice for axonometric projection

IS: 11670 - 1986 Abbreviations used in technical drawings

IS: 10720 - 1983 Technical drawing for structural work

IS: 10990 - 1984 Code of practice for industrial piping drawings

IS: 10711 -1983 Size of drawing sheets

IS: 11664-1986 Folding of drawing sheets

IS: 11665 - 1985 Title blocks for technical drawings

IS: 10713 - 1983 Scales used on technical drawings

IS: 10714 - 1983 General principles of presentation on technical drawings

IS: 9609 (Part - I) - 1983 Lettering on technical drawings

IS: 11669 - 1986 Principles of dimensioning

IS: 10718 - 1983 Method of dimensioning and tolerance codes on drawings

IS: 19715 - 1983 Presentation of threaded parts on technical drawings

IS: 1071 - 1983 Presentation of item reference on technical drawings

IS: 11663 - 1986 Conventional representations of common features

IS: 10717 -1983 Conventional representations of gears on technical drawings

IS: 10716 - 1983 Rules for representation of springs on technical drawings

IS: 813 - 1986 Scheme of symbols for welding

IS: 10719 - 1983 Method of indicating surface texture on technical drawings

Table 1.0 Indian standard codes used for machine drawing

Scales used in Machine Drawing

1. Full scale

2. Reduced scale and

3. Enlarged scale.

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Full scale Reduced scale Enlarged scale

1:1

1:2

10:1

5:1

2:1

1:2.5

1:5

1:10

1:20

1:50

1:100

1:200

Table 1.1 Standard Scales used in Machine Drawing

Welded Joints

Welding is defined as the localized, intimate union of metal parts in the

plastic or plastic and molten state, with the application of blows or mechanical pressure

or the union of parts in the molten state without any pressure. There are three main

methods of welding, viz., forge welding, electric resistance welding and fusion welding

Welding is a permanent method for making joints. Welding has replaced riveting in

many industries because of saving in labor as well as material and reduction in weight by

the use of lighter plates and the elimination of all overlaps and rivets.

Types of Welded Joints and Symbols

There are five basic form of welded joints, namely, edge, butt, lap, corner and

tee. The various types of welded joints and their symbols have been shown in Fig1.0.

Butt Joint-This type of Joint is used to join the ends of two plates, located m the same

plane..

Or 2 to 5 mm thick plates, the open square butt joint should be selected. But above 5 mm

thickness, the joint with edge preparation on one or both sides may be recommended.

Lap JointIt is used to join two overlapping plates such that the edge of each plate is welded to the surface of the other.

This type of joint is suitable up to 3 mm thick plates.

Corner Joint-It is used to weld the edges of two plates this is suitable for both heavy and

light gauges. This type of joint is commonly used in the construction of boxes, tanks,

frames and other circular items.

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Fig.1.0

Edge joint-The edge joint is used to join two parallel plates. This is generally used for

sheet metal works.

T-JointT-Joint is used to join two plates, the surfaces of which are at right angle to each other. It is employed for thickness of plates up to 3 mm and is widely used in thin

walled structures.

Riveted Joints This is a permanent joint in which sheet metals or plates are fastened together by means of a special element called rivet. A rivet is a short round bar of steel or wrought iron with a head at one end and a tail on the other end. Riveted joints are widely used in structural work like roof trusses, bridges, boiler shop and aircraft weapons.

Riveting Process When two plates are to be riveted and joined, holes are made in the plates. For relatively thin plates, holes are made by punching operation. But for pressure-vessel joints, the holes are usually drilled and reamed.

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Keys

A key is a small metallic part used to transmit rotary motion between two parts like a shaft and a pulley. The key is inserted in the slot which is half way in the shaft and half way inthe pulley. This slot which takes up the key is called as keyway. The key is subjected to shearing and crushing forces. Taper 1:100

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Keys are used to connect pulleys, couplings, clutches, sprocket wheels, gears and cutters with their respective driving shaft or spindle.

Types of Keys

The following are the main types of keys used in engineering applications,

i. Sunk Key vi. Double head Key

ii. Saddle Key vii. Peg Key

iii. Gib head Key viii. Pin Key

iv. Feather Key ix. Woodruff Key

v. Single head Key x. Spline shaft

(i) Sunk Key

Keys that ate seated partly in the keyway of shaft and partly in the keyway of other

members like flange, pulley or gears are called sunk keys. Sunk key may be parallel or

taper. A parallel sunk key has uniform cross-section throughout its length and fillets at

the corners, as shown in Figure to give proper seating in the keyway and to avoid sharp

comers. The taper sunk key is also rectangular in cross section. Its bottom surface is

straight and the top surface is tapered.

a) Parallel Sunk Key b) Taper Sunk Key Proportions for sunk key:

Width of the key, W = 0.25 D + 2 mm (where, D = Diameter of the shaft in mm) Thickness of key, T = 0.66 W

Standard taper == 1 : 100 (i.e. 1 unit of thickness reduction for 100 units of length)

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(ii) Saddle Key The keyway cut in the shaft increases the stress concentration and weakens the shaft. In order to overcome this problem, saddle keys are used to fit pulley or flange on a shaft without the provision of the keyway. Saddle key holds the pulley on the shaft due to friction and it is suitable only for light loads. .

Saddle keys are of two types namely,

(a) Hollow saddle key

(b) Flat saddle key

(a) Hollow Saddle Key The hollow saddle key shown in Figure 2.20 is of uniform width but tapering in thickness has its taper side flat. The bottom side is curved to give seating on the shaft. The two parts like shaft and flange are held only due to friction between the key and the mating parts.

Proportions of hollow saddle key:

Width of the key, W = 0.25 D + 2 mm

Thickness of key, T = 0.33 D xi. \\ (b)Flat Saddle Key It is also a taper key that seats with the flat surface formed on the shaft and fits into the keyway in the flange as shown in Figure. This key will not be suitable for shafts, which

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are frequently changing their direction of rotation. The drive with this key is not rigid and it is suitable for light loads only.

xii.

Fasteners There are two types of methods to join together parts: (i) Temporary method,

and (ii) Permanent method. Temporary fastening methods permit easy separation of the

parts without destroying them. Whereas, permanent fastening methods do not permit their

separation without destroying the parts. The temporary fastening methods are

Height of gib head = 1. 75 T

Width of gib head = 1.5 T

iv) Feather Key A feather key is of rectangular or square cross section with uniform width and thickness as shown in Figure .This key permits axial sliding movement of the wheel over the shaft when both of them are rotating together. At the same time the key transmits twisting moment between the shaft and the wheel. This type of rotary and sliding movements are needed in certain applications like gear box.

(iii) Gib Head Key

The gib head key is an ordinary square or rectangular key with a head that facilitates its removal from the keyway during dismantling. Gib head keys may be parallel or taper as shown in Figure. The key is fitted so that there is a clearance between the interface of the gib head and the outer face of the Binge. An extractor tool is used in this clearance to remove the key from the hole.

(v) Single Head Key This is also a feather type of key with a gib head at one end. This key also permits axial movement for the wheel over a shaft. The key is fastened with the wheel or pulley by means of counter sunk screw as shown in Figure .The wheel. Along with the key can move in the axial direction through the keyway provided on the shaft.

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(i) Temporary fasteners

(a) Threaded fasteners

(b) Non-threaded fasteners

(ii) Permanent fasteners (i) Temporary Fasteners These are commonly used to join two or more machine parts. In the

temporary fasteners it is possible to separate the fastened parts without damaging the

fastening elements. Screws, bolts and nuts are examples of threaded fasteners, and keys and

cotters are examples of non-threaded fasteners.

(ii) Permanent Fasteners These are used to permanently join two or more parts, which do not require

dismantling in future. In the permanent fasteners it is not possible to separate the fastened

parts without damaging the fastening dement. Riveted and welded joints are examples for

permanent fasteners.

Threaded Fasteners

Screw Thread A screw thread is a continuous helical ridge formed by cutting a helical

groove on a cylindrical shank. Components with such grooves are called as screws. Screws

are used mainly to fasten two or more parts. They are also used to convert rotary motion into

translatory (linear) movements. Threads formed on conical surface are called as tapered

threads. There are different profiles of screw thread, each with definite proportions. The

terms used in the definition of screw thread are illustrated and explained below.

,

Nomenclature of Screw Thread Root is the bottom surface joining the two sides of a thread.

Crest is the top surface joining the, two sides of a thread.

Flank is the surface between the crest and the root of a thread.

Depth of thread IS the distance between the crest and the root of a thread measured

normal to the axis of the thread. '

.

Angle of thread is the angle between the Banks measured in an axial plane.

Helix angle is the angle, which the helix makes at any point with a plane

perpendicular to the axis.

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Nominal diameter is the diameter of the cylindrical rod on which the threads are cut.

This diameter specifies the size of thread.

Major diameter is the diameter of an imaginary cylinder, which bounds the crests of

an external thread or the roots of an internal thread. It is also called as outside

diameter.

Minor diameter is also called as root diameter or core diameter. It is the diameter of

an imaginary cylinder which bounds the roots of an external thread or crest of an

internal thread.

Pitch diameter is the diameter of an imaginary cylinder on a cylindrical screw thread,

which cuts the screw thread in such a way that the width of the cut thread is equal to

the width of the groove. It is also called effective diameter. Pitch diameters of both

the external and internal thread are equal.

Fundamental triangle is the imaginary equilateral triangle which bounds a thread

form.

Pitch is the distance between corresponding points on the adjacent thread forms

measured parallel to the axis. It may be indicated as the distance from one crest to the

adjacent crest or from one root to the adjacent root.

Lead is the axial distance through which a screw thread will advance for one

complete revolution. For single start thread lead is equal to pitch but for double start

thread lead is equal to twice the pitch.

External thread: A thread cut on the outer surface or the cylinder is called external

thread. Examples are bolt, stud, and screws.

Internal thread: A thread cut on a cylindrical hole is called as internal thread. Nuts have

internal thread.

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Based upon the number of start points of the threads on the cylinder, they are classified into

two types.

(i) Single start thread.

(ii) Multi start threads.

Single start thread has only one helical groove on the cylinder. In this thread lead is

equal to pitch and it is used for general purpose fasteners. Multi start thread has two or more

helical grooves cut parallel.

A double start thread, for example will have two helical grooves running parallel and

so there will be two starting points.

Multiple start threads are used when a quick advance is required in a screwed pair.

That is the translating part should move through a larger distance for one rotation of the

other part. Multi start threads are generally used in jigs and fixtures, work holding devices,

fountain pens, toothpaste caps, and so on.

Based upon the slope of the screw thread with the axis, screws are classified into (i)

Left-hand thread (ii) Right-hand thread

(i) Left-hand Thread If a point on a thread of a screw moves towards the observer for clockwise rotation of the

screw, then the thread is called as left hand thread. In other words, a left hand thread is one

which gets removed from a stationary nut when turned clockwise. A left hand external

thread will be sloping towards the right side when viewed from the front perpendicular to the

axis. (ii) Right-hand Thread If a point on a threaded screw moves away from the observer for clockwise rotation of the screw, the thread is called as right hand thread. A right hand threaded screw advances into a stationary nut when it is rotated clockwise. A right .hand external thread will be sloping towards left when viewed from the front perpendicular to the axis. If no specification is made the. Thread is considered to be right hand. Left hand thread is specifically marked.

LIMITS AND FITS Two extreme permissible sizes of a part between which the actual size is contained are called

limits. The relationship existing between two parts which are to be assembled with respect to the

difference on their sizes before assembly is called a fit.

ToleranceTolerance is defined as the total permissible variation of a size. It is the difference between maximum limit and minimum limit of size.

FITS When two parts are to be assembled the relation resulting from the difference between their sizes

before assembly is called a fit. The fit signifies the range of tightness or looseness which may

result from the application of a specific combination of allowances and tolerances in the design of

mating parts.

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Types of Fits

There are three general types of fit between the mating parts

1. Clearance fit A clearance fit is one having limits of size so prescribed that a clearance always results when mating parts are assembled.

2. Interference fit An interference fit is one having limits of size so prescribed that an interference always results when mating parts are assembled.

3. Transition fit A transition fit is one having limits of size so prescribed that either a clearance or an interference may always result when mating parts are assembled.

The three types of fits are shown in Figure.

Size: The quantity measure of geometry like length, diameter and thickness is known as size. Basic size: The theoretical size of a part derived from the design formulation after rounding off with respect to the standard size is known as basic size. The tolerances are always specified to the basic Size. Actual size: It is the size of a part obtained by measurement after machining process. Nominal size: The size referred to as a matter of convenience is called nominal size. Often the terms basic size and nominal size are used interchangeably. Limits: The two extreme permissible sizes between which the actual size lies are called as limits.

Maximum limit: The maximum permissible size for the given basic-size is called as maximum

limit. The greater of the NO limits of size is maximum limit. Minimum limit: The minimum permissible size for the given basic size is called as minimum limit. The smaller of the two limits of size is minimum limit. Tolerance: The amount of permissible variation to the basic size is called tolerance. The difference between maximum limit and minimum limit gives the value of tolerance. If the variation are permit- ted only one side of basic size (plus side or minus side) then it is unilateral tolerance. If variations permitted both on the plus and minus sides of basic size it is called as bilateral tolerance. e

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Deviation: The difference between limit sizes (maximum or minimum) and the basic size is called deviation. .

Actual deviation: It is the algebraic difference between the actual size and the corresponding basic size.

Upper deviation: It is the algebraic difference between the maximum limit of size and the corresponding basic size.

Lower deviation: It is the algebraic difference between the minimum limit of size and the corresponding basic size.

Fundamental deviation: It is one of the two deviations conventionally chosen to define the position of the tolerance zone in relation to zero line.

Zero line: In a graphical representation of limits, a straight line to which the deviations are referred is called zero line. By convention, when the line is drawn horizontally, positive deviations are shown above and negative derivation below it.

Shaft: This term refers to all external features of a part including non-cylindrical one.

Hole: This term refers to all internal features of a part including those that are not cylindrical.

Basic shaft: A shaft whose upper deviation is zero is called as basic shaft.

Basic hole: A hole whose lower deviation is zero is called as basic hole.

Tolerance zone: It is the zone bounded by two limits of size of a part on the graphical representation of tolerance. It is defied by its magnitude and its position in relation to zero line.

Allowances: Allowance is the difference between the basic sizes of hole and shaft. Maximum allowance is obtained by subtracting the minimum shaft size from the maximum hole size. Minimum allowance is obtained from the difference between the maximum shaft size and the minimum hole size. Allowance may be positive or negative depending on the type of fit between the shaft and the hole. A positive allowance denotes clearance and a negative allowance denotes interference.

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Ex.No: 02 SCREW JACK

Date:

AIM:

To model the parts of SCREW JACK and assemble the parts.

SOFTWARE REQUIRED:

Solid works 2010-2011

HARDWARES REQUIRED:

Operating system : Windows xp

Processor : Pentium IV

Hard disk : 80GB

RAM : 512 MB

COMMANDS USED:

Sketch, Trim, Smart dimension, Revolve, Extrude, Extrude cut, Chamfer, Mate, Insert,

Move, etc.

PROCEDURE:

Read the part drawing thoroughly. Choose proper scale. Open new solid works document. Click the part drawing and model the components as per the given dimensions in

part drawing by using above mentioned commands.

Save all the parts models and mark the file name. Now open the assembly window and insert the parts as per the given assembly

drawing.

Save the final assembly of components.

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RESULT:

Thus the assembly drawing of SCREWJACK is drawn and taken the print out.

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Ex.No: 03 FLANGE COUPLING

Date:

AIM:

To model the parts of FLANGE COUPLING and assemble the parts.

SOFTWARE REQUIRED:

Solid works 2010-2011

HARDWARES REQUIRED:

Operating system : Windows xp

Processor : Pentium IV

Hard disk : 80GB

RAM : 512 MB

COMMANDS USED:

Sketch, Trim, Smart dimension, Revolve, Extrude, Extrude cut, Chamfer, Mate, Insert,

Move, etc.

PROCEDURE:

Read the part drawing thoroughly. Choose proper scale. Open new solid works document. Click the part drawing and model the components as per the given dimensions in

part drawing by using above mentioned commands.

Save all the parts models and mark the file name. Now open the assembly window and insert the parts as per the given assembly

drawing.

Save the final assembly of components.

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RESULT:

Thus the assembly drawing FLANGE COUPLING is drawn and taken the print out.

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Ex.No: 04 STUFFING BOX

Date:

AIM:

To model the parts of STUFFING BOX and assemble the parts.

SOFTWARE REQUIRED:

Solid works 2010-2011

HARDWARES REQUIRED:

Operating system : Windows xp

Processor : Pentium IV

Hard disk : 80GB

RAM : 512 MB

COMMANDS USED:

Sketch, Trim, Smart dimension, Revolve, Extrude, Extrude cut, Chamfer, Mate, Insert,

Move, etc.

PROCEDURE:

Read the part drawing thoroughly. Choose proper scale. Open new solid works document. Click the part drawing and model the components as per the given dimensions in

part drawing by using above mentioned commands.

Save all the parts models and mark the file name. Now open the assembly window and insert the parts as per the given assembly

drawing.

Save the final assembly of components.

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RESULT:

Thus the assembly drawing STUFFING BOX is drawn and taken the print out.

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Ex.No: 05 UNIVERSAL JOINT

Date:

AIM:

To model the parts of UNIVERSAL JOINT and assemble the parts.

.

SOFTWARE REQUIRED:

Solid works 2010-2011

HARDWARES REQUIRED:

Operating system : Windows xp

Processor : Pentium IV

Hard disk : 80GB

RAM : 512 MB

COMMANDS USED:

Sketch, Trim, Smart dimension, Revolve, Extrude, Extrude cut,Chamfer, Mate, Insert,

Move, etc.

PROCEDURE:

Read the part drawing thoroughly. Choose proper scale. Open new solid works document. Click the part drawing and model the components as per the given dimensions in

part drawing by using above mentioned commands.

Save all the parts models and mark the file name. Now open the assembly window and insert the parts as per the given assembly

drawing.

Save the final assembly of components.

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RESULT:

Thus the assembly drawing UNIVERSAL JOINT is drawn and taken the print out.

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Ex.No: 06 KNUCKLE JOINT

Date:

AIM:

To model the parts of KNUCKLE JOINT and assemble the parts.

SOFTWARE REQUIRED:

Solid works 2010-2011

HARDWARES REQUIRED:

Operating system : Windows xp

Processor : Pentium IV

Hard disk : 80GB

RAM : 512 MB

COMMANDS USED:

Sketch, Trim, Smart dimension, Revolve, Extrude, Extrude cut,Chamfer, Mate, Insert,

Move, etc.

PROCEDURE:

Read the part drawing thoroughly. Choose proper scale. Open new solid works document. Click the part drawing and model the components as per the given dimensions in

part drawing by using above mentioned commands.

Save all the parts models and mark the file name. Now open the assembly window and insert the parts as per the given assembly

drawing.

Save the final assembly of components.

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RESULT:

Thus the assembly drawing KNUCKLE JOINT is drawn and taken the print out.

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Ex.No: 07 OLDHAMS COUPLING

Date:

AIM:

To model the parts of OLDHAMS COUPLING and assemble the parts.

SOFTWARE REQUIRED:

Solid works 2010-2011

HARDWARES REQUIRED:

Operating system : Windows xp

Processor : Pentium IV

Hard disk : 80GB

RAM : 512 MB

COMMANDS USED:

Sketch, Trim, Smart dimension, Revolve, Extrude, Extrude cut,Chamfer, Mate, Insert,

Move, etc.

PROCEDURE:

Read the part drawing thoroughly. Choose proper scale. Open new solid works document. Click the part drawing and model the components as per the given dimensions in

part drawing by using above mentioned commands.

Save all the parts models and mark the file name. Now open the assembly window and insert the parts as per the given assembly

drawing.

Save the final assembly of components.

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RESULT:

Thus the assembly drawing OLDHAMS COUPLING is drawn and taken the print out.

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Ex.No: 08 PLUMMER BLOCK

Date:

AIM:

To model the parts of PLUMMER BLOCK and assemble the parts.

SOFTWARE REQUIRED:

Solid works 2010-2011

HARDWARES REQUIRED:

Operating system : Windows xp

Processor : Pentium IV

Hard disk : 80GB

RAM : 512 MB

COMMANDS USED:

Sketch, Trim, Smart dimension, Revolve, Extrude, Extrude cut,Chamfer, Mate, Insert,

Move, etc.

PROCEDURE:

Read the part drawing thoroughly. Choose proper scale. Open new solid works document. Click the part drawing and model the components as per the given dimensions in

part drawing by using above mentioned commands.

Save all the parts models and mark the file name. Now open the assembly window and insert the parts as per the given assembly

drawing.

Save the final assembly of components.

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RESULT:

Thus the assembly drawing PLUMMER BLOCK is drawn and taken the print out.

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Ex.No: 09 SLEEVE AND COTTER JOINT

Date:

AIM:

To model the parts of SLEEVE AND COTTER JOINT and assemble the parts.

SOFTWARE REQUIRED:

Solid works 2010-2011

HARDWARES REQUIRED:

Operating system : Windows xp

Processor : Pentium IV

Hard disk : 80GB

RAM : 512 MB

COMMANDS USED:

Sketch, Trim, Smart dimension, Revolve, Extrude, Extrude cut,Chamfer, Mate, Insert,

Move, etc.

PROCEDURE:

Read the part drawing thoroughly. Choose proper scale. Open new solid works document. Click the part drawing and model the components as per the given dimensions in

part drawing by using above mentioned commands.

Save all the parts models and mark the file name. Now open the assembly window and insert the parts as per the given assembly

drawing.

Save the final assembly of components.

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RESULT:

Thus the assembly drawing SLEEVE AND COTTER JOINT is drawn and taken the print out.

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Ex.No:10 SOCKET AND SPIGOT JOINT

Date:

AIM:

To model the parts of SOCKET AND SPIGOT JOINT and assemble the parts.

SOFTWARE REQUIRED:

Solid works 2010-2011

HARDWARES REQUIRED:

Operating system : Windows xp

Processor : Pentium IV

Hard disk : 80GB

RAM : 512 MB

COMMANDS USED:

Sketch, Trim, Smart dimension, Revolve, Extrude, Extrude cut,Chamfer, Mate, Insert,

Move, etc.

PROCEDURE:

Read the part drawing thoroughly. Choose proper scale. Open new solid works document. Click the part drawing and model the components as per the given dimensions in

part drawing by using above mentioned commands.

Save all the parts models and mark the file name. Now open the assembly window and insert the parts as per the given assembly

drawing.

Save the final assembly of components.

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RESULT:

Thus the assembly drawing SOCKET AND SPIGOT JOINT is drawn and taken the print

out.

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Ex.No: 11 SOLID MUFF COUPLING

Date:

AIM:

To model the parts of SOLID MUFF COUPLING and assemble the parts.

SOFTWARE REQUIRED:

Solid works 2010-2011

HARDWARES REQUIRED:

Operating system : Windows xp

Processor : Pentium IV

Hard disk : 80GB

RAM : 512 MB

COMMANDS USED:

Sketch, Trim, Smart dimension, Revolve, Extrude, Extrude cut,Chamfer, Mate, Insert,

Move, etc.

PROCEDURE:

Read the part drawing thoroughly. Choose proper scale. Open new solid works document. Click the part drawing and model the components as per the given dimensions in

part drawing by using above mentioned commands.

Save all the parts models and mark the file name. Now open the assembly window and insert the parts as per the given assembly

drawing.

Save the final assembly of components.

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RESULT:

Thus the assembly drawing SOLID MUFF COUPLING is drawn and taken the print out.

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Ex.No: 12 GIB AND COTTER JOINT

Date:

AIM:

To model the parts of GIB AND COTTER JOINT and assemble the parts.

SOFTWARE REQUIRED:

Solid works 2010-2011

HARDWARES REQUIRED:

Operating system : Windows xp

Processor : Pentium IV

Hard disk : 80GB

RAM : 512 MB

COMMANDS USED:

Sketch, Trim, Smart dimension, Revolve, Extrude, Extrude cut,Chamfer, Mate, Insert,

Move, etc.

PROCEDURE:

Read the part drawing thoroughly. Choose proper scale. Open new solid works document. Click the part drawing and model the components as per the given dimensions in

part drawing by using above mentioned commands.

Save all the parts models and mark the file name. Now open the assembly window and insert the parts as per the given assembly

drawing.

Save the final assembly of components.

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RESULT:

Thus the assembly drawing GIB AND COTTER JOINT is drawn and taken the print out.

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Ex.No: 13 MACHINE VICE

Date:

AIM:

To model the parts of MACHINE VICE and assemble the parts.

SOFTWARE REQUIRED:

Solid works 2010-2011

HARDWARES REQUIRED:

Operating system : Windows xp

Processor : Pentium IV

Hard disk : 80GB

RAM : 512 MB

COMMANDS USED:

Sketch, Trim, Smart dimension, Revolve, Extrude, Extrude cut,Chamfer, Mate, Insert,

Move, etc.

PROCEDURE:

Read the part drawing thoroughly. Choose proper scale. Open new solid works document. Click the part drawing and model the components as per the given dimensions in

part drawing by using above mentioned commands.

Save all the parts models and mark the file name. Now open the assembly window and insert the parts as per the given assembly

drawing.

Save the final assembly of components.

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Part .No Part Name No. OFF

1. Vice Body 1

2.

Sliding Jaw

Stop 1

3. Bar Globe 1

4. Screw bar 1

5. Jaw screw 1

6. Base plate 2

7. Vice jaw 1

8. Set screw 1

9. Fillister screw 1

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RESULT:

Thus the assembly drawing MACHINE VICE is drawn and taken the print out.

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Ex.No: 14 CONNECTING ROD

Date:

AIM:

To model the parts of CONNECTING ROD and assemble the parts.

SOFTWARE REQUIRED:

Solid works 2010-2011

HARDWARES REQUIRED:

Operating system : Windows xp

Processor : Pentium IV

Hard disk : 80GB

RAM : 512 MB

COMMANDS USED:

Sketch, Trim, Smart dimension, Revolve, Extrude, Extrude cut,Chamfer, Mate, Insert,

Move, etc.

PROCEDURE:

Read the part drawing thoroughly. Choose proper scale. Open new solid works document. Click the part drawing and model the components as per the given dimensions in

part drawing by using above mentioned commands.

Save all the parts models and mark the file name. Now open the assembly window and insert the parts as per the given assembly

drawing.

Save the final assembly of components.

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Part .No Part Name

No.

OFF

1. Connecting Rod 1

2. Bush 1

3. Shim 2

4. Bolt and Nut 2

5. Set screw 1

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RESULT:

Thus the assembly drawing CONNECTING ROD is drawn and taken the print out.

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KIOT/MECH/CAMD LAB

VIVA QUESTIONS

1. Define drawing.

2. Define Engineering Drawing.

3. Discuss about machine drawing.

4. What are the types of scales used in machine drawing?

5. What is a key?

6. What are the types of keys?

7. Discuss about plotter.

8. What is meant by GD & T?

9. What are the differences between limits, fits and tolerances?

10. Expand the abbreviations BIS, ISO?

11. What are the sizes of the sheets A4, A3, A2, and A1?

12. Differentiate between keys and splines.

13. What is the function of a coupling between two shafts?

14. What are flexible couplings used?

15. What is the material used for flange or flange coupling?

16. Differentiate between a cotter joint and a knuckle joint

17. Why are welded joints preferred over riveted joints?

18. What are the types of welded joints?

19. What is the purpose of Plummer block?

20. What is the purpose of coupling? What are the types?

21. What is bearing?

22. Classify the types of bearings.

23. What is rivet and where is it used?

24. Specify the types of rivets.

25. What is cotter joint?

26. What is knuckle joint?

27. Give some examples for permanent and temporary joints.

28. Give examples of temporary and permanent fasteners.

29. What are the advantages and disadvantages of threaded joints?

30. Sketch any two types of weld joints.

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