Industrial components rivet and gear

1. Prepared by,
J.A.Prajapati
Guided by,
T.D.modi

2. My contain
• Rivet
• Definition of rivet
• Process of riveting
• Application of rivet
• Advantage of rivet
• Disadvantage of rivet
• Gear
• Definition of gear
• Manufacturing of Gear
• Application of gear
• Advantage of gear
• Disadvantage of gear

4. • Definition of rivet
• a metal pin for fastening two pieces of metal or other thick
materials together

5. • which materials used to make rivet
?
• Rivet are made of high carbon steel, plastic and
stainless steel

6. • which process used to
make rivet ?
• rivet is made by forging
process

7. Process of riveting

8. • Types of Rivet heads
• Snap head rivet
• Pan head rivet
• Countersunk head rivet
• Flat head rivet
• Half countersunk head rivet

9. • Types of rivet Joints
• Butt Joint
• Lap joint

10. • Methods of riveting
 Hand riveting
 Machine riveting

11. • Old riveting
machine

12. • In the present times
new machines are
used in rivetgun

13. Application of rivets
• • The rivets is used ships building bridges tanks and
boiler shells.
• Aerospace industries use hundreds of thousands of
solid rivets to assemble structural parts of an
aircraft.
• rivets are used in structures where high joint
strength is required

14. Advantages of Riveted Joints
• It is more reliable
• It can also be used for non ferrous metals
• Parts assembled by Riveted joint do not have any
thermal after effects
• Its quality inspection is easy and cheap
• When parts are dismantled riveted parts have less
damage compared to welded parts

15. Disadvantages of Riveted joints

16. Links
• https://youtu.be/BlygVIv-HEo
• https://youtu.be/uBctd88yzPw

17. 2. Gear
2. Gear.

18. Definition of Gear
the machinery in a vehicle that turns engine
power into a movement forwards or
backwards

19. which materials used to make
Gear ?
Gears are made of steel, brass, bronze, cast
iron, ductile iron, aluminum, powdered metals
and plastic materials.

20. Which process used to
make Gear ?
Gear is made by forging process

21. Manufacturing of Gear
As of 2014, an estimated 80% of all gearing
produced worldwide is produced by net shape
molding. Molded gearing is usually either powder
metallurgy or plastic.Many gears are done when
they leave the mold (including injection molded
plastic and die cast metal gears), but powdered
metal gears require sintering and sand castings or
investment castings require gear cutting or other
machining to finish thems

22. Manufacturing of Gear
The most common form of gear cutting is hobbing,
but gear shaping, milling, and broaching also exist.
3D printing as a production method is expanding
rapidly. For metal gears in the transmissions of cars
and trucks, the teeth are heat treated to make them
hard and more wear resistant while leaving the core
soft and tough. For large gears that are prone to
warp, a quench press is used.

23. Type of Gear
• Helical Gear
• Double Helical Gear
• Herringbone Gear
• Bevel Gear
• Worm Gear
• Hypoid Gear

24. Application of Gear
• Gears are used to transfer motion and torque
between machine components in mechanical
devices. Depending on the design and construction
of the gear pair employed, gears can change the
direction of movement and/or increase the output
speed or torque.

25. Advantages of Gear drive
• It is positive drive hence velocity remains constant
• Provisions for changing velocity ratios can be made
with the help of gear box
• Its efficiency is very high
• It can be used even for low speeds
• It can transmit high torque values

26. Disadvantage of Gear
• They are not suitable when shafts are distant
• At high speeds noise and vibration happens
• It requires lubrication
• It has no flexibility

27. Link
• https://youtu.be/XZgsV0AZJJ0