1. BY DAVID HAFFEY IAN KARLE JACOB KENT
Mechanical Fasteners BY
DAVID HAFFEY
IAN KARLE
JACOB KENT

2. OBJECTIVE EXPLAIN THE USE OF: EXPLAIN COMBINATION OF FASTENERS RIVETS
NUTS & BOLTS
EXPLAIN COMBINATION OF FASTENERS
METAL AND PLASTIC

3. OUTLINE INTRODUCTION OF FASTENERS TYPES OF FASTENERS RIVETS
METAL & PLASTIC FASTENERS
RECYCLING & DESIGN CONSIDERATIONS
CONCLUSION

4. INTRODUCTION PURPOSE OF RIVETS & SCREWS
PURPOSE OF GENERAL MECHANICAL FASTENERS

5. TYPES OF FASTENERS RIVETS SCREWS, BOLTS AND NUTS ADHESIVES
PLASTIC AND METAL
ADHESIVES
GLUE
TAPES
WELDING

6. APPLICATIONS OF RIVETS
INDUSTRAL
BUILDING CONSTRICTION
PRODUCTION
TOYS

7. TYPES OF RIVETS SOLID TUBULAR SNAP, PUSH & BARB
FULL, SEMI, SELF PIERCING, COMPRESSION
SNAP, PUSH & BARB

8. ADVANTAGES OF RIVETS COST LITTLE TRAINING REQUIRED FOR USE
CHEAPER THAN MOST THREADED FASTENERS
LITTLE TRAINING REQUIRED FOR USE
JOIN DISSIMILAR MATERIALS
ASTHETICALLY PLEASING
VARIETY OF SHAPES

9. DISADVANTAGES OF RIVETS
LOWER STRENGTH THAN BOLTS & SCREWS
TENSILE
FATIGUE
NOT WATER OR AIR TIGHT
DIFFICULT TO DISASSEMBLE
LOOSENS UNDER HIGH LOADS

10. TYPES OF METAL FASTENERS
SCREWS
OVAL, ROUND HEAD, SHEET METAL, LAG BOLTS
BOLTS & NUTS
MACHINE, CARRIAGE, STOVE
NAILS
COMMON, WIRE, DRYWALL, FINISH

11. ADVANTAGES OF METAL FASTENERS
HIGHER STRENGTH
THAN RIVETS OR GLUE
LOW COST
EASE OF DISASSEMBLY

12. DISADVANTAGES OF METAL FASTENERS
HIGHER WEIGHT THAN RIVETS OR PLASTIC
MOST ARE NOT CORROSION RESISTANT
VULNERABLE TO CYCLIC LOADINGS
DIFFICULT ASSEMBLY IN TIGHT PLACES
HOLES CAN WEAKEN PART

13. TYPES OF PLASTIC FASTENERS
SCREWS
NUTS & BOLTS
CABLE TIES
PANEL FASTENERS

14. APPLICATIONS OF PLASTIC FASTENERS
AUTOMOTIVE
WIRE HARNESS RETAINERS
PANEL & MOLDING CLIPS
GAS & BRAKE LINE CLIPS
TOYS
APPLIANCES
COMMERICAL

15. MATERIAL TYPES AND PRODUCTION
NYLON
ACRYLIC
HDPE PC PP
INJECTION MOLDED

16. ADVANTAGES LOW COST LIGHT WEIGHT CHEMICAL RESISTANT
LOW THERMAL & ELECTRICAL CONDUCTIVITY
DESIGN FLEXIBILITY

17. DISADVANTAGES POOR UV RESISTANCE STRESS RELAXATION CREEP
DYNAMIC LOADING FAILURES
MORE INTRICATE MOLD DESIGNS
LOWER MECHANICAL PROPERTIES THAN METAL

18. COMBINATIONS OF METAL AND PLASTIC FASTENERS
METAL INSERTS IN INJECTION MOLDING
THUMB SCREWS
STUDS WITH PLASTIC ATTACHMENTS (AUTOMOTIVE)

19. REASONS FOR COMBINATIONS
ASTHETICALLY PLEASING
COMBINATION OF PROPERTIES

20. RECYCLING CONSIDERATIONS
METAL AND PLASTIC MUST BE SEPERATED
MATERIAL SEPERATION OF PLASTICS
PROPERTIES DEGRADE MUILPILE USE

21. DESIGN CONSIDERATIONS
HOLD STRENGTH
RECYCLING ABILITIES
PRODUCT LIFE
APPLICATION
MOLD INSERTS
PROPER DIAMETERS AND WALL THICKNESS
TORQUE AND TENSILE STRENGH

22. CONCLUSION
APPLICAIONS
TYPES
OTHER CONSIDERATIONS

23. QUESTIONS

24. FIN