ACRM-RIVETS,FASTENERS, FLUID LINES AND FITTINGS Flashcards
1
Q
AMS
A
Aeronautical Material Specifications
2
Q
AN
A
AIR FORCE NAVY
3
Q
AND
A
AIR FORCE NAVY DESIGN
4
Q
AS
A
AERONAUTICAL STANDARDS
5
Q
ASA
A
AMERICAN STANDARDS ASSOCIATION
6
Q
ASTM
A
AMERICAN SOCIETY FOR TESTING MATERIALS
7
Q
MS
A
MILITARY STANDARDS
8
Q
NAF
A
NAVAL AIRCRAFT FACTORY
9
Q
SAE
A
SOCIETY OF AUTOMOTIVE ENGINEERS
10
Q
470
A
UNIVERSAL HEAD
11
Q
430
A
ROUND HEAD
12
Q
442
A
FLAT HEAD
13
Q
455
A
BRAZIER
14
Q
456
A
MODIFIED BRAZIER
15
Q
Process in which the metal in the top sheet is cut away in the shape of the rivet head.
A
COUNTERSINKING
16
Q
Process that mechanically dents the sheets being joined to accommodate the rivet head.
A
DIMPLING
17
Q
To provide a smooth finish after the rivet is driven, the protruding rivet head is removed using a
A
MICROSHAVER
18
Q
An alternative to leaving the rivet head sticking up slightly is to use the Alcoa
A
CROWN FLUSH RIVET
19
Q
Restricted to nonstructural assemblies
A
A - 1100 - PLAIN
20
Q
Require no heat treatment, field rivets
A
AD - 2117 - DIMPLE
21
Q
Parts made of magnesium
A
B - 5056 - RAISED CROSS
22
Q
Crack free rivet, icebox rivets
A
D - 2017 - RAISED DOT
23
Q
Icebox rivets
A
DD -2024 - TWO RAISED DASHSES
24
Q
Used by Boeing
A
E - 7050 - RAISED RING
25
Clamping action by having one of its ends mechanically upset.
SPECIAL RIVETS
26
Conventional solid shank rivets require access to both ends to be driven. Often called
BLIND RIVETS
27
Limited use on aircraft and never used for structural repairs. Made from soft aluminum alloy, steel, copper, and monel.
POP RIVETS
28
were available in two styles, hollow shank pull-through and self-plugging types. Used for repairing light aircraft.
FRICTION-LOCK RIVETS
29
Designed to prevent the center stem of a rivet from falling out as a result of the vibration. Permanently locks the stem into place and vibration cannot shake it loose.
MECHANICAL-LOCK RIVETS
30
Used as structural replacements for solid shank rivets.
HUCK-LOCKS
31
Center stem is locked into place with a lock ring. High shear and bearing strengths.
CHERRYLOCKS
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Ring slips down the stem and locks the center stem to the outer shell.
OLYMPIC LOCKS
33
Economical to use and strong enough to replace solid shank rivets, size for size.
CHERRYMAX
34
RIVETS Used by aerospace industry
HI-SHEAR RIVETS
35
Uses either a rivet gun or squeeze riveter
HAND RIVETING
36
When there are a large number of easily accessible rivets to be installed, a compression, or squeeze riveter can be used.
COMPRESSION RIVETING
37
Drives most rivets used in aircraft construction.
GUN RIVETING
38
Has a pulling stem on which a pneumatic installation gun fits.
PULL-TYPE LOCKBOLT
39
Placed into a blind hole and an installation gun is placed over the pulling stem.
BLIND-TYPE LOCKBOLT
40
Installed in places where there is not enough room to use the standard pulling tool.
STUMP-TYPE LOCKBOLTS
41
Straight shank with standard threads. To install a Hi-Lok, the hole is first drilled with an interference fit.
HI-LOKS
42
Similar to the Hi-Lok except it is made from lighter materials and has a shorter transition from the threaded section to the shank.
HI-LITES
43
Combines two titanium alloys which are bonded together to form a strong structural fastener.
CHERRYBUCKS
44
Strongest special fastener used in aircraft construction.
TAPER-LOK
45
High-strength structural fasteners used in close-tolerance holes where strength requirements are high.
JO-BOLTS
46
are usually installed in interference fit holes. Use clearance fit holes if one or more of the structural members to be attached are made of steel, stainless steel, and titanium.
PIN FASTENERS
47
All nuts must have some sort of locking device to prevent them from loosening and falling off. Many nuts are held on a bolt by passing a ______ ______ through a hole in the bolt shank and through slots.
COTTER PIN
48
Locks onto a bolt on its own
SELF-LOCKING
49
Relies on either a cotter pin, check nut, or lock washer to hold it in place.
NON- SELF LOCKING
50
Uses a single piece of wire that passes through the hole in the turnbuckle’s center
SINGLE WRAP
51
Single piece of wire, spiraled around the turnbuckle buckle and passes through the center hole twice
SINGLE WRAP SPIRAL
52
Two single wrap safeties, one in each direction
DOUBLE WRAP
53
Two single wrap spirals, one in each direction
DOUBLE WRAP SPIRAL
54
Used in place of safety wire to safety turnbuckles if the turnbuckle hardware is drilled to accommodate this type of clip.
SAFETY CLIPS
55
have replaced copper. However, it is not flexible and more difficult to bend and flare without cracking.
Aluminum-alloy and corrosion-resistant steel
56
is used in areas that are subject to physical damage from dirt, debris, and corrosion caused by moisture, exhaust fumes, and salt air. Such areas include flap wells and external brake lines.
CORROSSION-RESISTANT STEEL
57
Always cut it approximately 10 longer than the tube being replaced as a margin of safety for minor variations in bending.
TUBE CUTTING
58
When duplicating these lines, you must be able to produce bends that are 75% of the original tube diameter and free of kinks.
TUBE BENDING
59
Secures lines which are subject to vibration.
RUBBER CUSHIONED CLAPMS
60
Used in areas that are not subject to vibration and typically consists of a metal band formed into a circle.
PLAIN CLAPMS
61
Have an electrical lead that is connected to the aircraft structure to ground a tube.
BONDED CLAPMS
62
Consists of an inner liner covered with layers of reinforcement to provide strength, and an outer cover to protect from physical damage.
FLEXIBLE FLUID LINES
63
Form of synthetic rubber that is abrasion resistant and used with petroleum-based fluids
NEOPRENE
64
Synthetic rubber compound that is also used to carry petroleum-based products.
BUNA-N
65
Synthetic rubber compound made from petroleum raw materials and breaks down if used with petroleum products.
BUTYL
66
Compatible with nearly every liquid used.
TEFLON
67
Made of cotton, rayon, polyester fabric, carbon-steel wire, or a stainless steel wire braid.
REINFORCEMENT LAYERS
68
Made of rubber-impregnated fabric or stainless steel braid to protect the hose from physical damage.
OUTER COVER
