Mechanical FastenersMechanical Fasteners

BYBYDAVID HAFFEYDAVID HAFFEY

IAN KARLEIAN KARLEJACOB KENTJACOB KENT

OBJECTIVEOBJECTIVE

EXPLAIN THE USE OF:EXPLAIN THE USE OF: RIVETSRIVETS NUTS & BOLTSNUTS & BOLTS

EXPLAIN COMBINATION OF EXPLAIN COMBINATION OF FASTENERSFASTENERS METAL AND PLASTICMETAL AND PLASTIC

OUTLINEOUTLINE

INTRODUCTION OF FASTENERSINTRODUCTION OF FASTENERS TYPES OF FASTENERSTYPES OF FASTENERS RIVETSRIVETS METAL & PLASTIC FASTENERSMETAL & PLASTIC FASTENERS RECYCLING & DESIGN RECYCLING & DESIGN

CONSIDERATIONSCONSIDERATIONS CONCLUSIONCONCLUSION

INTRODUCTIONINTRODUCTION

PURPOSE OF RIVETS & SCREWSPURPOSE OF RIVETS & SCREWS PURPOSE OF GENERAL MECHANICAL PURPOSE OF GENERAL MECHANICAL

FASTENERSFASTENERS

TYPES OF FASTENERSTYPES OF FASTENERS

RIVETSRIVETS SCREWS, BOLTS AND NUTSSCREWS, BOLTS AND NUTS

PLASTIC AND METALPLASTIC AND METAL ADHESIVESADHESIVES

GLUEGLUE TAPESTAPES WELDINGWELDING

APPLICATIONS OF RIVETSAPPLICATIONS OF RIVETS

INDUSTRALINDUSTRAL BUILDING BUILDING

CONSTRICTIONCONSTRICTION PRODUCTIONPRODUCTION

TOYSTOYS

TYPES OF RIVETSTYPES OF RIVETS

SOLIDSOLID TUBULARTUBULAR

FULL, SEMI, SELF FULL, SEMI, SELF PIERCING, COMPRESSIONPIERCING, COMPRESSION

SNAP, PUSH & BARBSNAP, PUSH & BARB

ADVANTAGES OF RIVETSADVANTAGES OF RIVETS

COST COST CHEAPER THAN MOST THREADED CHEAPER THAN MOST THREADED

FASTENERSFASTENERS LITTLE TRAINING REQUIRED FOR USELITTLE TRAINING REQUIRED FOR USE JOIN DISSIMILAR MATERIALSJOIN DISSIMILAR MATERIALS ASTHETICALLY PLEASINGASTHETICALLY PLEASING VARIETY OF SHAPES VARIETY OF SHAPES

DISADVANTAGES OF RIVETSDISADVANTAGES OF RIVETS

LOWER STRENGTH THAN BOLTS & LOWER STRENGTH THAN BOLTS & SCREWSSCREWS TENSILE TENSILE FATIGUEFATIGUE

NOT WATER OR AIR TIGHTNOT WATER OR AIR TIGHT DIFFICULT TO DISASSEMBLEDIFFICULT TO DISASSEMBLE LOOSENS UNDER HIGH LOADSLOOSENS UNDER HIGH LOADS

TYPES OF METAL TYPES OF METAL FASTENERSFASTENERS

SCREWSSCREWS OVAL, ROUND HEAD, SHEET METAL, LAG OVAL, ROUND HEAD, SHEET METAL, LAG

BOLTSBOLTS BOLTS & NUTSBOLTS & NUTS

MACHINE, CARRIAGE, STOVEMACHINE, CARRIAGE, STOVE NAILSNAILS

COMMON, WIRE, DRYWALL, FINISHCOMMON, WIRE, DRYWALL, FINISH

ADVANTAGES OF METAL ADVANTAGES OF METAL FASTENERSFASTENERS

HIGHER STRENGTHHIGHER STRENGTH THAN RIVETS OR GLUETHAN RIVETS OR GLUE

LOW COSTLOW COST EASE OF DISASSEMBLYEASE OF DISASSEMBLY

DISADVANTAGES OF METAL DISADVANTAGES OF METAL FASTENERSFASTENERS

HIGHER WEIGHT THAN RIVETS OR HIGHER WEIGHT THAN RIVETS OR PLASTICPLASTIC

MOST ARE NOT CORROSION MOST ARE NOT CORROSION RESISTANTRESISTANT

VULNERABLE TO CYCLIC LOADINGSVULNERABLE TO CYCLIC LOADINGS DIFFICULT ASSEMBLY IN TIGHT PLACESDIFFICULT ASSEMBLY IN TIGHT PLACES HOLES CAN WEAKEN PARTHOLES CAN WEAKEN PART

TYPES OF PLASTIC TYPES OF PLASTIC FASTENERSFASTENERS

SCREWSSCREWS NUTS & BOLTSNUTS & BOLTS CABLE TIESCABLE TIES PANEL FASTENERSPANEL FASTENERS

APPLICATIONS OF PLASTIC APPLICATIONS OF PLASTIC FASTENERSFASTENERS

AUTOMOTIVEAUTOMOTIVE WIRE HARNESS RETAINERSWIRE HARNESS RETAINERS PANEL & MOLDING CLIPS PANEL & MOLDING CLIPS GAS & BRAKE LINE CLIPSGAS & BRAKE LINE CLIPS

TOYSTOYS APPLIANCESAPPLIANCES COMMERICALCOMMERICAL

MATERIAL TYPES AND MATERIAL TYPES AND PRODUCTIONPRODUCTION

NYLONNYLON ACRYLICACRYLIC HDPEHDPE PCPC PPPP

INJECTION MOLDEDINJECTION MOLDED

ADVANTAGESADVANTAGES

LOW COSTLOW COST LIGHT WEIGHTLIGHT WEIGHT CHEMICAL RESISTANTCHEMICAL RESISTANT LOW THERMAL & ELECTRICAL LOW THERMAL & ELECTRICAL

CONDUCTIVITYCONDUCTIVITY DESIGN FLEXIBILITYDESIGN FLEXIBILITY

DISADVANTAGESDISADVANTAGES

POOR UV RESISTANCE POOR UV RESISTANCE STRESS RELAXATIONSTRESS RELAXATION CREEPCREEP DYNAMIC LOADING FAILURESDYNAMIC LOADING FAILURES MORE INTRICATE MOLD DESIGNSMORE INTRICATE MOLD DESIGNS LOWER MECHANICAL PROPERTIES LOWER MECHANICAL PROPERTIES

THAN METALTHAN METAL

COMBINATIONS OF METAL AND COMBINATIONS OF METAL AND PLASTIC FASTENERSPLASTIC FASTENERS

METAL INSERTS IN METAL INSERTS IN INJECTION MOLDINGINJECTION MOLDING

THUMB SCREWSTHUMB SCREWS STUDS WITH PLASTIC STUDS WITH PLASTIC

ATTACHMENTS ATTACHMENTS (AUTOMOTIVE)(AUTOMOTIVE)

REASONS FOR REASONS FOR COMBINATIONSCOMBINATIONS

ASTHETICALLY PLEASINGASTHETICALLY PLEASING COMBINATION OF PROPERTIESCOMBINATION OF PROPERTIES

RECYCLING RECYCLING CONSIDERATIONSCONSIDERATIONS

METAL AND PLASTIC MUST BE METAL AND PLASTIC MUST BE SEPERATEDSEPERATED

MATERIAL SEPERATION OF PLASTICSMATERIAL SEPERATION OF PLASTICS PROPERTIES DEGRADE MUILPILE USEPROPERTIES DEGRADE MUILPILE USE

DESIGN CONSIDERATIONSDESIGN CONSIDERATIONS

HOLD STRENGTHHOLD STRENGTH RECYCLING ABILITIESRECYCLING ABILITIES PRODUCT LIFEPRODUCT LIFE APPLICATIONAPPLICATION MOLD INSERTSMOLD INSERTS

PROPER DIAMETERS AND WALL PROPER DIAMETERS AND WALL THICKNESSTHICKNESS

TORQUE AND TENSILE STRENGHTORQUE AND TENSILE STRENGH

CONCLUSIONCONCLUSION

APPLICAIONSAPPLICAIONS TYPESTYPES OTHER CONSIDERATIONSOTHER CONSIDERATIONS

QUESTIONSQUESTIONS

FINFIN