1. SKETCHER WORKBENCH

START --- MECHANICAL DESIGN --- SKETCHER. Below fig. shows sketcher work bench.

TOOL BARS IN SKETCHER WORK BENCH :

1) PROFILE: Icons in profile tool bar are used to creat the geometrical sketches. downward arrows indicates the further option.

2) OPERATION :

CORNER : Use to create blunt edges.CHAMFER: Use to create chopped edges with given inclination and with given two set backs.EXTEND &TRIM : Use to extend lines and trim the extra projected lines.

3) CONSTRAINTS : This is the option used to specify and fix the dimentions of sketches , it is compulsory for all the sketches.

PROCEDURE : select the constraint option and specify the dimensions of the sketch , if sketch turns to ‘green’ then it is constrained. If it shows ‘pink’ then it is over constrained. after sketch is

constrained selecting exit work bench to enter part design.

4) SKETCH TOOLS : In the fig. orange colour indicates function is on. In the sketch tools only geometrical, dimentional constrains should be on.

2) PART DESIGN WORKBENCH

MOST USED ICONS IN PART DESIGN :

TRANSFORMATION FEATURES :

There are two types of pattern definations are there….. They are,

1) RECTANGULAR PATTERN

2) CIRCULAR PATTERN

The below two figures were represents the dialouge box for rectangluar pattern and circular pattern..By these two options we can able to get the pattern in rectangle and circular, by filling the required data.

1)

SKETCH BASED FEATURES :

2) 1) PAD : Used to create the extruded part of a drawn sketch.3)

4) 2) POCKET : Used to create the cutout of any shape in an 3d image .5)

6) 3) SHAFT : Used to create a 3d image by using section of sketch. the 3d image of that 7) Sketch should contain axis of symmetry. EX; SHAFT

The following dialogue boxes shows shaft, pad and pocket definition.8)

4) GROOVE: Used to create groove along the 3D dia.

5) HOLE: To create the circular pockets. It is restricted for circular cutouts only. In this three headings are there, extrusion, type (i.e., tapered, simple, countersink, counter bored, etc.,), thread definition(if the hole is having threading).

6) SLOT: used to create the cutout of any drawn.

The following dialogue boxes shows groove and hole definition.

EXPLODED VIEW OF SCREW JACK ASSEMBLY

PART BODIES OF SCREW JACK

(1) BODY

Open the CATIA SOFTWARE.

a. Select SKETCHER workbench, which is shown in the page no. b. Select any one as a reference plane, (i.e., YZ or XZ planes in this case).c. Once the reference plane is selected, the screen is changes to

2Dmode.

d. Using the profile or line command draw the sketch of the part body.

e. After the sketch is completed, it should be dimensionally constrained which is shown in the fig1.

f. Click on EXIT WORKBENCH . It will return back to PART DESIGN workbench.

g. To create a solid part of the body shown in fig2. Use option SHAFT

NOTE: If the sketch didn’t contain axis type line, then it would be necessary to select an axis of revolution, for an example vertical (V) axis.

h. Verify that the provided FIRST ANGLE LIMIT in the shaft dialogue box Is to be 360⁰, & select OK.

i. Use EDGE FILLET to create soft corners at wherever necessary of certain radius.

(2) NUT

a. Select SKETCHER workbench. b. Select any one as a reference plane, (i.e., YZ or XZ planes in this case).c. Once the reference plane is selected, the screen is changes to 2Dmode.

d. Using the profile or line command draw the sketch of the part body.e. After the sketch is completed, it should be dimensionally constrained which is

shown in the fig1.

f. Click on EXIT WORKBENCH . It will return back to PART DESIGN workbench.

g. To create a solid part of the body shown in fig2. Use option SHAFT

NOTE: If the sketch didn’t contain axis type line, then it would be necessary to select an axis of revolution, for an example vertical (V) axis.

h. Verify that the provided FIRST ANGLE LIMIT in the shaft dialogue box Is to be 360⁰, & select OK.

i. Use EDGE FILLET option, to get the blunt edges…. Verify the fillet radius, and select the object to be filleted in its dialogue box.

3) SCREW SPINDLE a. Draw the dimensionally constrained sketch of it, shown in fig1.

b. To create chamfer as shown in fig2, use option EDGE CHAMPER c. To create hole, which is perpendicular to axis of spindle shown in the fig2

Select the face or plane where we have to get the hole, and create constrained geometry of the hole, then press exit workbench. Using pocket option do the hole length.

d. Use threading option to get external threads of required length on the body.

4) TOMMY BAR a. Similar procedure is used to get the part design of it…(select XY plane to draw

the sketch).

5) CSK SCREW

Similar procedure but to create slot use option slot .To create a slot, create sketch of square by selecting plane. Curve selection in window of slot definition

indicates the direction of projection of slot. Use to get threading on it.

6) CUP & 7) WASHER

The similar options are used. But to create a four semicircular slot on cup use option,

that is circular array . First create one slot on required position then fill up array

definition shown below. In washer use countersunk hole type with an angle of 90⁰.

3) ASSEMBLY DESIGN WORKBENCH

OPTIONS USED IN ASSEMBLY DESIGN

1) MANIPULATION : This option is used to move or rotate the part body along any desired axis (i.e., along X, Y or Z axis). The dialogue box for manipulation is as shown in this fig.

2) SNAP : This

option is used to joining two parts and to coincide the axis of two part bodies.

4) DRAFTING WORKBENCH

OPTIONS USED IN DRAFTING WORKBENCH

VIEWS TOOLBAR: It mainly contains all required normal views and isometric views.

DIMENTIONAL TOOLBAR: Used to represent the dimension of drawn fig.

In drafting the dimensions cannot be altered, it represents the dimensions given

during sketch.

ASSEMBLY DESIGN OF SCREW JACK PARTS

STEPS:

1) Select START—MECHANICAL DESIGN—ASSEMBLY DESIGN.2) Right click on PRODUCT of the specification tree—COMPONENTS—EXISTING

COMPONENT.

3) Recollect all the parts into assembly design workbench in one by one.

4) Join the parts one by one to required position using manipulation and snap

commands.5) If axis of any two parts is in different direction then use snap, first select axis of

body to be moved and then axis of body to be aligned in.6) To join the parts use again snap in that select face, line or point of body to be

moved and then face, line, or point to be snapped on required body.7) To get exploded view use manipulation and select the option pertaining to

required direction 8) Save the assembled design to file.

ASSEMBLY DESIGN OF KNUCKLE JOINT PARTS

STEPS:

1) Select START—MECHANICAL DESIGN—ASSEMBLY DESIGN.2) Right click on PRODUCT of the specification tree—COMPONENTS—EXISTING

COMPONENT.3) Recollect all the parts into assembly design workbench in one by one.

4) Join the parts one by one to required position using manipulation and snap

commands.5) If axis of any two parts is in different direction then use snap, first select axis of

body to be moved and then axis of body to be aligned in.6) To join the parts use again snap in that select face, line or point of body to be

moved and then face, line, or point to be snapped on required body.7) To get exploded view use manipulation and select the option pertaining to

required direction 8) Save the assembled design to file.

EXPLODED VIEW OF KNUCKLE JOINT ASSEMBLY

PART BODIES OF KNUCKLE JOINT

1)

1)PIN

a. Draw the sketch with dimensionally constrained.

b. Get the solid part as shown in fig. using shaft option.

c. Create a tapered hole using hole option.

d. Save the part.

2) TAPER PIN

a. Draw the sketch with dimensionally constrained.b. Get the solid part using shaft

option.

3) COLLAR

a. Draw the sketch with dimensionally constrained.b. To get the solid part use PAD option.

4) EYE

a. Draw the sketch with dimensionally constrained.b. Get the solid part with centered hole.c. Then use the pad option to get the second fig2. by selecting any desired

plane.d. Then select padded face, enter sketcher and draw a circle of diameter of 28

units. Draw square of 28 units, and use the fillet option at the two edges of the drawn square which will be tangent to drawn circle.

e. After the octagonal sketch (fig3) is over use pad to get solid part as shown in fig4.

Fig1

Fig2

Fig3

Fig4

5) FORK a. Draw the sketch with dimensionally constrained.b. Get the solid part with centered hole.c. Then use the pad option to get the second fig2. by selecting any desired

plane.

d. Then select padded face, enter sketcher and draw a circle of diameter of 28 units. Draw square of 28 units, and use the fillet option at the two edges of the drawn square which will be tangent to drawn circle.

e. After the octagonal sketch (fig3) is over use pad to get solid part as shown in fig4.

1 MUFF

Open the CATIA SOFTWARE.

a. Select SKETCHER workbench, which is shown in the page no. b. Select any one as a reference plane, (i.e., YZ or XZ planes in this case).c. Once the reference plane is selected, the screen is changes to

2Dmode.

d. Using the profile or line command draw the sketch of the part body.

e. After the sketch is completed, it should be dimensionally constrained which is shown in the fig1.

f. Click on EXIT WORKBENCH . It will return back to PART DESIGN workbench.

g. To create a solid part of the body shown in fig2. Use option SHAFT

NOTE: If the sketch didn’t contain axis type line, then it would be necessary to select an axis of revolution, for an example vertical (V) axis.

h. Verify that the provided FIRST ANGLE LIMIT in the shaft dialogue box Is to be 360⁰, & select OK.

I. To create a draft angle on the inner face of slot, use

Fill up the draft definition box, in this ‘angle’ prescribed should be of tapered angle. Face to draft is the face to be taper select it , then as neutral element select any other face.

2 SHAFT

Procedure for creating is same, use options like slot, pocket or groove to create slot on the shaft. Do not create another shaft you can select same shaft twice during assembly and can manipulate to required direction

3 KEY a. Draw the sketch with dimensionally constrained.b. Get the solid part using pad

Option.

ASSEMBLY OF MUFF COUPLING

STEPS:

1) Select START—MECHANICAL DESIGN—ASSEMBLY DESIGN.2) Right click on PRODUCT of the specification tree—COMPONENTS—EXISTING

COMPONENT.3) Recollect all the parts into assembly design workbench in one by one.

4) Join the parts one by one to required position using manipulation and snap

commands.5) If axis of any two parts is in different direction then use snap, first select axis of

body to be moved and then axis of body to be aligned in.6) To join the parts use again snap in that select face, line or point of body to be

moved and then face, line, or point to be snapped on required body.7) To get exploded view use manipulation and select the option pertaining to

required direction 8) Save the assembled design to file.

ASSEMBLY OF MUFF COUPLING

GETTING STARTED WITH CATIA

Install CATIA in the system and then start it by double clicking on the shortcut icon of CATIA on the desktop of your computer. After the system has loaded all the required files to start CATIA V5, a new window will open. Then select “Start” on menu bar go to mechanical design and select sketcher.

CAT PART

It is a file extension associated with all files that are created in the sketcher. Part design and Wireframe and Surface design, Workbenches of CATIA V5.

CAT PRODUCT

It is a file extension associated with all files that are created in the Assembly design workbench of CATIA V5.

CAT DRAWING

It is a file extension associated with all files that are created in the Drafting workbench of CATIA V5.

Sketch 1

1.Select ‘Start’ and go to ‘Sketcher’.

2.Select the desired plane and draw an axis line in vertical axis.

3.Draw the given sketch and constrain all the elements using “CONSTRAINT” option on the toolbar.

4.After the completion of sketch click on exit workbench which is in the “WORKBENCH” option on the toolbar.

5.Then click on the pad option which is the “SKETCH-BASED FEATURES” on the toolbar.

6.Give the desired thickness to the sketch and save as Sketch 1.

SKETCH 2

1.Select ‘Start’ and go to ‘Sketcher’.

2.Select the desired plane.

3.First draw 2 circles with radii 2.5mm and 11mm with 15mm apart between the centers left and right respectively.

4.Constrain the sketch using “CONSTRAINT” option on the toolbar.

5. After the completion of sketch click on exit workbench which is in the “WORKBENCH” option on the toolbar.

6. Then click on the pad option which is the “SKETCH-BASED FEATURES” on the toolbar.

7. Give the desired thickness to the sketch and return to sketcher by selecting the plane in which futher drawing is to be done.

8.Draw the inner circle with radii 1.9mm and 10.4mm with centers 15mm apart at left and right respectively.

9.Go back to exit workbench option and select “POCKET” on the toolbar and make a hole selecting the dimension as up to last.

10. Then save the sketch as Sketch 2.

SKETCH 3

1.Select ‘Start’ and go to ‘Sketcher’.

2.Select the desired plane.

3.Draw the outer sketch using the drawing options in the toolbar and constrain it.

4.Fillet the corners with the given radius selecting the “CORNER” option in the “OPERATION” toolbar.

5. After the completion of sketch click on exit workbench which is in the “WORKBENCH” option on the toolbar.

6. Then click on the pad option which is the “SKETCH-BASED FEATURES” on the toolbar.

7. Give the desired thickness to the sketch and return to sketcher by selecting the plane in which futher drawing is to be done.

8.Draw the given circles of the given dimension in the given positions.

9. Go back to exit workbench option and select “POCKET” on the toolbar and make a hole selecting the dimension as up to last.

10. Then save the sketch as Sketch 3.

SKETCH 4

1.Select ‘Start’ and go to ‘Sketcher’.

2.Select the desired plane.

3.Draw the outer sketch using the drawing options in the toolbar and constrain it.

4.Fillet the corners with the given radius selecting the “CORNER” option in the “OPERATION” toolbar.

5. After the completion of sketch click on exit workbench which is in the “WORKBENCH” option on the toolbar.

6. Then click on the pad option which is the “SKETCH-BASED FEATURES” on the toolbar.

7. Give the desired thickness to the sketch and return to sketcher by selecting the plane in which futher drawing is to be done.

8.Draw the given circles of the given dimension in the given positions.

9. Go back to exit workbench option and select “POCKET” on the toolbar and make a hole selecting the dimension as up to last.

10. Then save the sketch as Sketch 4.

PARTS BODY OF FLANGE COUPLING

1) FLANGE: a) Draw the 3-d part of the flange using shaft option by creating section of

sketch.b) Create four holes using circular array option.

c) During assembly insert the flange twice.

2) SHAFT:

Procedure for creating is same, use options like slot, pocket or groove to create slot on the shaft. Do not create another shaft you can select same

shaft twice during assembly and can manipulate to required direction

3) TAPER KEY: a) Draw the sketch with dimensionally constrained. b) Get the solid part using pad option. c) During assembly insert the flange twice.

4) BOLT: a) Create a circum circled hexagon in sketcher and get solid part by using

pad option. b) To create shank select any hexagonal face and draw a circle of desired

radius and get solid part using the option pad.c) Create threads on the surface of shank using thread option.d) Create a chamfer circle by using groove option.

5) NUT: a) Create a circum circled hexagon in sketcher and get solid part by using pad

option. b) Create internal threads on the surface of shank using thread option.c) Create a chamfer circle by using groove option.

ASSEMBLY OF FLANGE COUPLING

STEPS:

1) Select START—MECHANICAL DESIGN—ASSEMBLY DESIGN.2) Right click on PRODUCT of the specification tree—COMPONENTS—EXISTING

COMPONENT.3) Recollect all the parts into assembly design workbench in one by one.

4) Join the parts one by one to required position using manipulation and snap

commands.5) If axis of any two parts is in different direction then use snap, first select axis of

body to be moved and then axis of body to be aligned in.6) To join the parts use again snap in that select face, line or point of body to be

moved and then face, line, or point to be snapped on required body.7) To get exploded view use manipulation and select the option pertaining to

required direction 8) Save the assembled design to file.

SPECIFICATION TREE:

This tree consist of all the specifications , sketches and part drawings of particular part on selecting any points on tree we can change the dimensions directly.

COMPASS: it indicates the planes or axis in workbenches.

INTRODUCTION TO “CATIA”

CATIA, stands for Computer Aided Three-dimensional Interactive Application,

CATIA is the most powerful Knowledge based and widely used CAD (computer aided design) software of its kind in the world. CATIA has been created by Dassault Systems of France and is marketed &technicaly supported worldwide by IBM.

Where is CATIA used ?

CATIA is being used by designers, manufacturing facilities, assemblers, architects, industrial engineers etc. Have a Look around you. Everything and Anything you see had to be designed before manufacturing.

  The desk you are using, the chair you are sitting in, your daily use appliances, your car, your home etc. The list is almost endless. Nearly Everything is being designed on computers. CATIA plays a major role in the design process. CATIA is being used by the majority of automotive and aerospace industries for automobile and aircraft products and its auxiliaries and tooling design. Thousands of Engineering companies throughout the world over are using CATIA. A Company using CATIA has suppliers using CATIA too, thus making CATIA a Essential tool.

The most commonly CATIA users are generally Aerospace, Appliances, Architecture, Automotive, Construction, Consumer Goods, Electronics, Medical, Furniture, Machinery, Mold and Die, and Shipbuilding industries. CATIA has played a major role in NASA's design of the various Space equipments. Beside this CATIA has also been used as Vital tool for designing "jet-fighter" aircraft, aircraft carriers, helicopters, tanks and various other forms of weaponry extensively used by the Defense Sector.

Catia is used throughout the North American and European continents, as well as Australia. Apart from this CATIA is increasingly being used by Asian countries like India, Japan etc.

The following are just a few of the 20,000 + companies now using CATIA worldwide

Air Bus ,  Kelsey-Hayes ,   Boeing,   Lear Jet ,   BMW,   Volvo,  Black and Decker,     Fiat Peugeot,  Northrop Grumman Corp,  Ferrari,   Lockheed Martin ,   Porsche ,   Daimler Chrysler,  Goodyear,   Freightliner Truck ,  Allied Signal ,  SauberFormula,Volkswagen,  Pratt Whitney,   United Airlines,  Toyota,  Hyundai , Ford,    Mercedes-Benz ,  Honda

DRAFTING :

a) Open assembly work bench and drafting work bench

b) Select any one of the view then use CTRL TAB to enter the assembly work bench, on moving to parts in right hand corner shows the view.

c) Select the suitable view, then positioning on sheet select different planes.This procedure is same for all type of drafting.

Notable industries using CATIA

CATIA is widely used throughout the engineering industry, especially in the automotive and aerospace sectors. CATIA V4, CATIA V5, Pro/ENGINEER, NX (formerly Unigraphics), and SolidWorks are the dominant systems.

Aerospace

The Boeing Company used CATIA V3 to develop its 777 airliner, and is currently using CATIA V5 for the 787 series aircraft. They have employed the full range of DassaultSystemes' 3D PLM products — CATIA, DELMIA, and ENOVIA LCA — supplemented by Boeing developed applications.[8]The development of the Indian Light Combat Aircraft has been using CATIA V5.

Chinese Xian JH-7A is the first aircraft developed by CATIA V5, when the design was completed on September 26, 2000.European aerospace giant Airbus has been using CATIA since 2001.[9]

Canadian aircraft maker Bombardier Aerospace has done all of its aircraft design on CATIA.[10]The Brazilian aircraft company, EMBRAER, use Catia V4 and V5 to build all airplanes.Vought Aircraft Industries use CATIA V4 and V5 to produce its parts.The British Helicopter company, Westlands, use CATIA V4 and V5 to produce all their aircraft. Westlands is now part of an Italian company called Finmeccanica the joined company calls themselves AgustaWestland.The main supplier of helicopters to the U.S Military forces, Sikorsky Aircraft Corp., uses CATIA as well.

Automotive

Many automotive companies use CATIA to varying degrees, including BMW, Porsche, Daimler AG, Chrysler, Audi,[11] Volkswagen , Bentley Motors Limited, Volvo, Fiat, Benteler AG, PSA Peugeot Citroën, Renault, Toyota, Ford, Scania, Hyundai, Škoda Auto, Tesla Motors, Proton, Tata motors and Mahindra & Mahindra Limited, MLR motors, Hyderabad[International cars & motors ltd(Sonalikagroup,http://www.icml.co.in]. Goodyear uses it in making tires for automotive and aerospace and also uses a customized CATIA for its design and development. Many automotive companies use CATIA for car structures — door beams, IP supports, bumper beams, roof rails, side rails, body components — because CATIA is very good in surface creation and Computer representation of surfaces.

Shipbuilding

Dassault Systems has begun serving shipbuilders with CATIA V5 release 8, which includes special features useful to shipbuilders. GD Electric Boat used CATIA to design the latest fast attack submarine class for the United States Navy, the Virginia class .[12] Northrop Grumman Newport News also used CATIA to design the Gerald R. Ford class of supercarriers for the US Navy.[13]

Other

Architect Frank Gehry has used the software, through the C-Cubed Virtual Architecture company, now Virtual Build Team, to design his award-winning curvilinear buildings.[14] His technology arm, Gehry Technologies, has been developing software based on CATIA V5 named Digital Project.[15] Digital Project has been used to design buildings and has successfully completed a handful of projects.