The document provides an overview of SolidWorks, an automotive design software. It discusses SolidWorks' interface and main tools, how to start a new drawing, sketch entities and features used to create 3D models, how to create orthographic views, and how assemblies are made. It also includes exercises on how to make a basic block model. In addition, it defines key automotive components and systems like engines, transmissions, suspensions, and brakes. Safety measures for the automotive workshop are also outlined.

1. A TECHNICAL REPORT ON
STUDENT WORK EXPERIENCE
PROGRAMME (SWEP).
BY
ABISOYE AKINLOYE
MATRIC: ******
FET 200
SWEP

2. CONTENTS
1
SOLIDWORKS
2
3
TITLE PAGE AUTOMOBILE
4
CONCLUSION

3. INTRODUCTION TO SOLIDWORKS
AND ITS INTERFACE
DEFINITION
SolidWorks is a computer aided design software mostly used by engineers to create
3-dimension or solid form drawings. It is used to design 3D models and to assemble
various mechanisms or machines.
It is a mechanical design automation application use to sketch out ideas, experiment
with features and dimensions and produce models and detailed drawings.
Main Six area interface of SolidWorks are:
• Menu bar
• Command bar
• Features manager bar
• Status bar
• Head up tool bar
• Workspace area

4. INTERFACE

5. STARTING A NEW DRAWING
To Start a New Drawing
• Click the New tool icon from menu bar at the top of the drawing screen. (Crtl + N)
• Document dialog box will appear. SolidWorks can be used to create three types of
documents: Part, Assembly, and Drawing.
• Click on the part tool and then click Ok box. The Part drawing screen will appear.

6. SKETCH ENTITIES AND TOOLS
• Circle
• Rectangle
• Polygon
• Spline
• Ellipse
• Fillet
• Chamfer
• Point
• Trim
• Mirror

7. FEATURES
Features tools are used to create 3D models. A drawing usually starts with
a 2D sketch and Features tools are applied to create a 3D model.
They are:
1. Extruded boss/bass
2. Extruded cut
3. Hole wizard
4. Blind hole
5. Fillet
6. Chamfer
7. Revolved boss/base
8. Revolved cut etc.

8. ORTHOGRAPHIC
Drawing Orthographic Views Using SolidWorks.
SolidWorks creates orthographic views using the drawing tools found on the New SolidWorks
Document box.
• Start a new drawing by clicking the New tool.
• Click the Drawing icon on the New SolidWorks Document box.
• Click OK

9. Examples

10. ASSEMBLY
These tools are used to create assembly drawings. Assembly drawings can
be exploded to form isometric assembly drawings that when labeled and
accompanied by a parts list become working drawings. Assembly drawing
can be animated.
EXERCISE
How to make a block
1. > Click new tool icon or (Crtl+N)
> Select top view from feature bar.
> Select rectangle tool from the sketch
tab then draw rectangle.
> Draw two small square shape therein
> Extrude, then it forms a block.
N.B: Other CADs software are: AutoCAD,
CATIA, Autodesk Inventor and so on.

11. AUTOMOBILE
 The term Automobile or Automotive stands for a vehicle which can be moved by itself.
Therefore, an Automobile is a self-propelled vehicle. It is used for the transportation of
passengers and goods from one place to another on the ground.
 Automobile engineering is the one of the branches of mechanical engineering. The study
of automotive engineering is to design, develop, fabricate and test vehicles or vehicle
components from the concept stage to production stage.
 Captain Nicholas Cugnot, a Frenchmen, was considered to be the father of the
automobiles. (1769)
 The Stanley steamer car is credited with being the first self-propelled vehicle to attain a
road speed of 160km per hours.
 The automobile can be considered to consist of five (5) basic components:
a. Chassis Frame
b. The Engine or Power Plant
c. Transmission (clutch, axle, differential and shaft)
d. Suspension, brake and steering.
e. The body fitted on chassis. (Passenger compartment and accessories)

12. CAR ACCESSORIES
• Mirror: allow driver to observe what is happening around their car.
• Bumper: prevent physical damage to the front and rear of vehicles.
• Fender: It is the frame of the wheel. It protects the wheel.
• Hood: It provides access to engine for repair or maintenance.
• Trunk: It is the main storage or luggage compartment.
• Spoiler: aerodynamic device to control unfavorable air movement
across of a vehicle in motion. Spoilers on the front of a vehicle are call
ed air dam.

13. HOW CARBURETED CAR WORKS
• Whenever you turn the ignition switch key to start, a circuit is closed that allows
current to flow from battery to starter via solenoid starter switch.
• The starter makes the engine to crank and once the engine is running, fuel flow from
the fuel tank through the fuel line to the fuel pump.
• Fuel pump pumps fuel through fuel filter into the intake manifold. Each fuel is mixed
with air to form vaporized mixture at ratio of 14:1. “Hence, engine really runs on air
with a little fuel to help it.”
• Fuel-air mixture passes into the cylinder where combustion takes place.
• Crankshaft receives enormous force of combustion from the reciprocating piston via
connecting rod and transmit it to a rotary driving power.
• At the other end of the crankshaft is a box of gear called the transmission.
• If the car is manual, there will be a clutch located between the crankshaft and the
transmission. The clutch tells the transmission when to disengage and engage from
the rest of the drive train. But it is done automatically in automatic transmission.
• When you shift the gear into Drive or first, a set of gears causes the driveshaft to
turn at a particular speed.
• The driveshaft runs to the rear wheels and ends in another set of gears called
differential. Then car starts moving upon accelerating.

14. SAFETY MEASURES IN AUTOMOBILE
WORKSHOP
SCALDING
 Don't remove the radiator or expansion tank cap while the engine is hot.
 Engine oil, automatic transmission fluid or power steering fluid may also be dangerously
hot if the engine has recently been running.
BURNING
 Beware of burns from the exhaust system and from any part of the engine. brake discs and
drums can be extremely hot immediately after use.
 Don't smoke while working on the automobile.
CRUSHING
 When working under or near a raised vehicle always supplements the Jack with axle stand
or car stand. Never venture under a car supported by a jack only.
 Take care of loosening or tightening high torque nuts when the vehicle is on stands or Jack
Initial loosening and final tightening should be done with the wheels on the ground.

15. FIRE
 Fuel is highly flammable most especially petrol fuel vapor is highly flamm
able. Don't let fuel spill into a hot engine.
 Take care when repairing and modifying the vehicle wiring.
ELECTRIC SHOCK
 Avoid wearing ring or wrist watch when disconnecting or connecting the
battery.
 Remove the car key if you want to work on the ignition system.
FUME OR GAS INTOXICATION
 Exhaust fumes are poisonous; they often contain carbon monoxide which
is rapidly fatal if inhaled.
 Never run the engine in a confined space such as a garage with the doors
shut.
POISONOUS OR IRRITANT SUBSTANCES
 Avoid skin contact with battery acid and with any fuel, fluid or lubricant
especially antifreeze, brake hydraulic fluid and diesel.
 Don't syphon fuel or fluids by mouth. If such a substance is swallowed or
gets into the eyes, seek medical advice.

16. TOOLS AND EQUIPMENT USED IN
AUTOMOBILE WORKSHOP
• Jack
• Jack stand
• Wrenches
• Engine hoist
• Car lift
• Multimeter
• Battery charger and jumper
• Press
• Oil caddy
• Press
• Plier
• Hammer
• Screw driver
• Funnel
• Wheel alignment

17. MAINTENANCE OF AUTOMOBILE
Maintenance is a care, measures and activities carried out to ensure good performance of auto
mobiles, prolong its life span and make it more reliable.
There are basically six types of maintenance in automobile. These are:
• Daily maintenance: Check engine oil, water level, battery terminals and so on.
• Weekly Maintenance: Check tyre pressure, battery electrolyte, lug nuts.
• Scheduled maintenance: This is usually referred to as Serving. This is usually done when a
vehicle has covered certain number of Kilometers or the engine oil has been used for
certain number of hours.
• Repair: Sometimes, it can be referred as breakdown or emergency maintenance.
• Half overhauling (Ringing): Vehicles that are making excessive smoke can be subjected to
this type of maintenance.
• General Overhauling: This is known as a complete overhauling. It is usually carried out
when the engine could not develop enough power especially during acceleration.

18. HOW TO SERVICE A CAR
 Change the engine oil.
 Change the oil filter
 Change the fuel filter
 Retain spark plugs that are good by cleaning and resetting of the gap or change
the bad ones.
 Check and adjust brake and if necessary replace any worn parts.
 Check brake fluid, gear oil or transmission fluid and change it if necessary.

19. FAULT TRACING, TROUBLE SHOOTING AND REMEDIES FOR
SUB-SYSTEMS OF AUTOMOBILE.
Engine does not crank : Engine cranks but does not start: Excessive fuel consumption:
Engine overheating: Excessive oil consumption:
Excessive engine vibration:
Engine idles badly:
1. Run down battery.
2. Defective ignition system.
3. Plugged fuel filter.
4. Faulty kick starter.
1. Discharge battery
2. Defective starting circuit.
3. Defective starting motor.
4. Defective ignition system.
1. Lack of coolant.
2. Defective radiator hose.
3. Defective water pump.
4. Clogged water jackets or radiator
cores.
5. Loose or broken fan belt
6. Insufficient lubricating oil.
1. Possibility of external leaks.
2. Burning oil in the combustion cha
mber.
3. High speed driving.
1. High speed driving
2. Unnecessary and frequent
application of brake.
3. Wheel misalignment.
4. Carburetor leakage
5. Fuel pump leakage
6. Excessive fuel pump press
ure.
1. Fan blades out of balance.
2. Loose or ineffective mounting
rubber.
3.Loose attachment of sub-syste
ms attached to the engine.
4. Loose engine bolts.
1. Air leak.
2. Incorrect idle speed adjustment.

20. TROUBLESHOOTING SOUND AND SMOKE
SOUND
• If a fan belt or accessory belt "sings" (makes a continuous, high pitched sound)
Readjust or rub a bit of petroleum jelly on the underside of the belt.
• If radiator "sings"
Check the radiator pressure cover. They rubber gasket may be worn, and steam fr
om the hot engine may be escaping.
• If the hear squeaking when you step on the brake
The brake pads or brake disc probably worn out.
• If you hear the engine running after you've turned of the ignition
The engine is dieseling due to using fuel with high octane rating.
• If the car idles with offbeat rhythm
It's probably misfiring: one of the spark plugs or wires that connect them to distri
bution cap may be at fault.

21. SMOKE
 If you see white vapor on a cold morning
Disregard it if it stops after the car warms up. Of it continues after the car is warm,
the engine block or cylinder head or a leak head gasket may be letting water into
the engine.
 Black Smoke
High consumption of fuel. The fuel/air mixture may need to be adjusted to a leaner
setting.
 Light or dark blue smoke
The vehicle is burning oil, which indicates that oil is leaking into the combustion
chamber and you may need to replace piston rings.
 Light gray smoke
The car may be burning automatic transmission fluid. Check the transmission
dipstick. Is the fluid dark? Does it smell burnt? With luck, you may need to change
the fluid.

22. SAFE CONNECTION AND DISCONNECTION OF BATTERY
The battery stores electric current for starting the car, turning on the lights and powering the ignition
system.
1. On the battery, attached to either the top or the sides of the box, are two large metal terminal.
2. One positive terminal; the other is a negative terminal. You can tell which because positive termin
al is usually larger and may have a "+" sign
3. On many vehicles, there's a red cap on the positive terminal, and the negative terminal is usually
black.
4. Most car are negative ground or earthen, which means that the wire from the negative terminal
is attached to the frame of the vehicle to ground it, and the wire from the positive terminal
leads to the starter, ignition and so on.
5. Always remove the cable clamp from the negative terminal first.
6. Replace the positive cable first and negative cable last. If you attempt to remove the positive
clamp first and your wrench slips and touches something metal, your wrench can fuse to the part
like an arc welder. Which may later damage the brain box of the car.

23. HOW TO TEST A CAR BATTERY WITH MULTIMETER
• Put the ignition key and turn it to the run position.
• Turn the headlights ON for about 2 minutes and this will get rid of any surface
charges the battery may have.
• Two minutes later shut the headlights off and go to the battery terminals or lead.
Turn on the voltmeter and set the voltage to 20 volts or something above 15 volts.
• Connect red probe of the multimeter to the positive terminal of the battery and
connect the black probe to negative terminal.
• Let say the voltage is around 12 volts, it is good. But, just because it has a good volt
age doesn't mean the battery is good. The battery could be holding a charge but do
esn't have the cold cranking.
• Start the car with the probes not disconnected from the battery terminals. If the volta
ge drops below 10 volts, then the battery is faulty.
• When you start the engine the voltage will first drop down (but not below 10 volts) a
nd then it popped back up. That's is because the alternator is charging the battery.
• The battery checks out has enough cranking amps and the cells are good. Hence, the
battery is good.

24. What is under the Hood?
Components of the IC Engine

25. TYPES OF I.C ENGINE
• According to the cycle of Operation used
 4 strokes & 2 strokes
• According to the fuel used
 Gas, petrol, diesel or oil engine
• According to the method of ignition
 Spark ignition: Petrol or gas engine & Compressed ignition: Diesel and
oil engines.

26. THANK YOU
FOR
LISTENING.