Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/93

Click to flip

93 Cards in this Set

  • Front
  • Back
Malleability
Ability to be hammered, molded, or shaped without cracking or breaking.
Ductility
Ability to be bent permanently or twisted into various shapes without breaking.
Fusibility
Ability to become a liquid when heated.
Thermosetting plastic
achieves rigidity through chemical reaction. cannot be reheated
Thermoplastic
can be machined and will soften with heat. physical rather than chemical change takes place. made of stretched acrylic; laminated 2 sheets and a rubber inner layer.
Tinner Snips
cuts straight lines in metal 1/16" thick
Aviation Snips
Red-right handed
Green-left handed
Yellow-cuts straight
metal no thicker than .050"
Hacksaws
cuts metal too thick for snips. blades measured in teeth per inch.
Types of composite fibers
carbon graphite fibers
boron fibers
DuPont aramid kevlar
Aramid Nomex
Radome Grade A
Primary radome grade. Damage could seriously affect aircraft, crew, antenna, etc. All Navy radomes are Class 1.
Radome Grade B
Secondary radome grade. Damage would not seriously affect mission, aircraft, safety, etc. All Navy radomes are Class 1.
Composite Matrix materials
Epoxy Resins
Bismaleimide Resins
PMR Polyamide Resins
What are 3 general methods of radome construction?
Honeycomb, Solid Laminate, Filament Wound
In preparation of repair what should first be done to surface?
Contaminate removal and removal of surface coatings.
Authorized cleaning of aircraft can be found in what manual?
NA-01-509
What publication to consult on proper number of plies to be removed from radome?
Consult the applicable MIM
Two most common resin selections for radomes on Naval aircraft.
Polyester & Epoxy Resin
What does advance composite materials allow?
Allows replacement of aluminum. Higher strength-to-weight ratio. Aircraft carry larger payloads and save fuel.
What are the 2 types of thermoplastic materials?
Stretched acrylic & Laminated.
What publication is used to find screw torquing limits & procedures?
The applicable MIM.
What are characteristics of HARDNESS?
Ability to resist abrasions, penetrations & distortion.
What does the second number indicate in an aluminum alloy designation code?
Any added element.
4 Special views of orthographic drawing.
Auxiliary views, Sectional views, Phantom views, & Exploded views.
Purpose of a flat pattern layout.
used as a guide or pattern to indicate where to bend or cut metal.
Malleability
Ability to be hammered, molded, or shaped without cracking or breaking.
Ductility
Ability to be bent permanently or twisted into various shapes without breaking.
Fusibility
Ability to become a liquid when heated.
Thermosetting plastic
achieves rigidity through chemical reaction. cannot be reheated
Thermoplastic
can be machined and will soften with heat. physical rather than chemical change takes place. made of stretched acrylic; laminated 2 sheets and a rubber inner layer.
Tinner Snips
cuts straight lines in metal 1/16" thick
Aviation Snips
Red-right handed
Green-left handed
Yellow-cuts straight
metal no thicker than .050"
Hacksaws
cuts metal too thick for snips. blades measured in teeth per inch.
Types of composite fibers
carbon graphite fibers
boron fibers
DuPont aramid kevlar
Aramid Nomex
Radome Grade A
Primary radome grade. Damage could seriously affect aircraft, crew, antenna, etc. All Navy radomes are Class 1.
Radome Grade B
Secondary radome grade. Damage would not seriously affect mission, aircraft, safety, etc. All Navy radomes are Class 1.
Composite Matrix materials
Epoxy Resins
Bismaleimide Resins
PMR Polyamide Resins
What are 3 general methods of radome construction?
Honeycomb, Solid Laminate, Filament Wound
In preparation of repair what should first be done to surface?
Contaminate removal and removal of surface coatings.
Authorized cleaning of aircraft can be found in what manual?
NA-01-509
What is a prick punch used for?
to make reference marks.
What is a center punch used for?
mark locations for drilling, prevents drill from wandering.
Radome Damage Class 1
damage to paint or coating only.
Radome Damage Class 2
damage not deeper than 2nd ply.
Radome Damage Class 3
damage to outer skin only but core is undamaged.
Radome Damage Class 4
damage does not exceed 1/2 wall thickness in class "A" radome. does not apply to class "B".
Radome Damage Class 5
hole through wall in "A", "B". skin, core & inner skin damaged in "C". damage beyond 3rd layer in class "D".
What is purpose of a cut line?
Indicates exact amount of metal required to make a part.
Define Bend Tangent Line
indicates beginning and end of a bend.
Define Setback
distance from bend tangent line to the mold point.
Where is the mold point located?
At the intersection of extension lines outside the formed part.
two types of twist drill bits
general purpose and carbide-tipped.
what is the drill angle?
the degree of drop from center to the outer edge (59 degrees)
What portion of a drill bit is inserted into the chuck?
The shank.
What is the purpose of a hand drill?
To drill 1/4" or smaller holes.
What is the purpose of a pneumatic drill?
Used for drilling series of large holes where speed and accuracy are required.
What is the purpose of a drill press?
To do heavy duty and sensitive drilling.
Purpose of a riveted joint layout?
Good layout ensures each rivet carries the share of the required load.
What is formula for transverse pitch?
75% of existing rivet pitch.
What are types of machine countersinks?
Non-adjustable and adjustable.
What will selection of a machine countersink depend on?
Availability
What will cause chattering when countersinking?
Dull countersinks.
What does improper depth cause when countersinking?
Weak joints and elongated holes.
What is dimple countersinking?
Forming cone-shaped recesses by pressing sheet metal between male and female die.
What is the purpose of dimple countersinking.
Makes a recess shape to accomodate a flush head fastener without removing much metal. Produces a stronger joint than machine countersinking.
What does dimple countersinking produce?
Produces a stronger joint than machine countersinking.
What is the purpose of press dimpling?
Dimpling soft alloys & metal .063" or thinner.
What is the difference between press dimpling and coin dimpling?
A coin dimpler has a spring loaded ram.
What does coin dimpling reduce?
Circumferential cracks.
Why are holes drilled one size smaller than rivets during dimple construction?
Dimpling stretches the holes.
When is combination method used?
When one metal is too thick to be dimpled and the other is too thin to be machine countersunk.
List 5 permanent fasteners
Rivet solid shank
Blind rivets
Hi-Shear rivets
Jo-Bolts
Hi-Lok fasteners
What size range do Cleco fasteners go from?
1/16" to 3/8"
What is the advantage of an aluminum alloy?
They have a high strength-to-weight ratio.
what is a bar folder used for?
for making bends or folds along edges of sheets of metal. no bend wider than 1" can be made on them.
what is a box and pan brake for?
for making boxes and pans of various sizes and shapes.
what are flanging dies used for?
used to form a bend or flange in the center of a sheet of metal without distortion such as lightening holes or beads in the center of a rib or bulkhead.
what are the sizes of twist drill bits available?
inches - 1/16" to 4+"
letters - A to Z (A is smallest)
numbers 80 to 1 (80 is smallest)
what is the most important step in the care of all drills and drill bits
keep them free of corrosion.
what are the two types of solid shank rivets?
countersunk head
raised head
what alloy is a raised cross rivet made of?
5056 (magnesium alloy)
what are the 2 types of blind rivets?
mechanical lock
friction lock
what do the locks do in blind rivets?
they hold the stem in place.
what measurements are Jo-Bolts available in?
1/16"
what are the two types of solid shank rivets?
countersunk head
raised head
what alloy is a raised cross rivet made of?
5056 (magnesium alloy)
what are the 2 types of blind rivets?
mechanical lock
friction lock
what do the locks do in blind rivets?
they hold the stem in place.
what measurements are Jo-Bolts available in?
1/16"
what are the two types of solid shank rivets?
countersunk head
raised head
what alloy is a raised cross rivet made of?
5056 (magnesium alloy)
what are the 2 types of blind rivets?
mechanical lock
friction lock
what do the locks do in blind rivets?
they hold the stem in place.
what measurements are Jo-Bolts available in?
1/16"