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AMCR > NON-METALLIC MATERIALS (WOOD AND FABRIC) > Flashcards

NON-METALLIC MATERIALS (WOOD AND FABRIC) Flashcards

1
Q

Chosen material for aircraft construction during World War 1 in 1939.

A

Wood

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2
Q

Types of wood

A

Solid wood
Plywood
Laminated wood

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3
Q

Made from one solid log that was cut into quarters and is commonly used in aircraft wing spars.

A

Solid wood

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4
Q

Two or more woods of the same grain direction that are glued together.

A

Laminated wood

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5
Q

Manufacturing Process of Laminated Wood:

A

Spruce → Structural wood → Kiln drying → Strength grading → Finger jointing → Planing → Glue application → Pressing → Planing → Packing

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6
Q

Three or more thin sheets of wood board with alternating grain direction (1st layer: vertical grain, 2nd layer: horizontal grain) that are glued and pressed together.

A

Plywood

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7
Q

Manufacturing Process of Plywood:

A

Log selection → Conditioning of log → Peeling → Veneer cutting → Veneer drying → Jointing and repairs → Veneer grading → Glueing → Pre-pressing and lay up → FInal pressing → Trimming to size → Sanding → Quality inspection → Packaging and storage

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8
Q

Species of wood

A

Hardwoods
Softwoods

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9
Q

Types of hardwood

A

Mahogany
birch

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10
Q

Types of softwood

A

Sitka spruce
douglas fir
balsa
noble fir
northern white pine

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11
Q

Wood defects

A

limb
check
shake
knot
sapwood
heartwood

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12
Q

acceptable defects

A

cross-grain
wavy, curly, and interlocked grain
hard knots
pin knot clusters
pitch pockets
mineral streaks

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13
Q

non-acceptable defects

A

cross-grain
wavy, curly, and interlocked grain
hard knots
pin knot clusters
spike knots
pitch pockets
mineral streaks
checks, shakes, and splits
compression failures
decay

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14
Q

types of adhesives

A

Casein adhesive
synthetic-resin adhesive
plastic resin glue

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15
Q

Synthetic-Resin adhesive types

A

Resocinol glue
Phenol-formadehyde glue
Epoxy resins

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16
Q

What are the inspection method of wood?

A

moisture metering
tapping
probing
prying
smelling
visual inspection

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17
Q

what is critical to the structural strength of an aircraft wooden structure. To ensure the structural integrity of a wood joint, the bonding process must be carefully controlled?

A

bonding process

18
Q

Wood bonding process

A

Preparation
Utilization
Performing

18
Q

Considering the following periods when applying adhesive

A

pot life
open assembly time
closed assembly type
pressing

19
Q

What is used to squeeze adhesive out into a thin, continuous film between the wood layers. This forces air from the joint and
brings the wood surfaces into intimate contact. Pressure should be applied to the joint before the adhesive becomes too thick to flow and is accomplished by means of clamps, presses, or other mechanical devices.

A

Clamping pressure

20
Q

two classifications of plastic

A

thermoplastic resin
thermosetting resins

21
Q

Types of Thermoplastic Material

A

cellulose acetate
acrylic
other types:
cellulose acetate polyethylene
vinyl
acrylic resin
Polytetraflouroethylene (Teflon)

22
Q

Types of Thermoplastic Material

A

polyester resin
vinyl ester resin
phenolic resin
epoxy
polyimides
polybensimidazoles (pbi)
bismaleimides (bmi)

23
Q

-Has been used in the early stages of aviation history.
-Wright Flyer is a famous fabric-covered aircraft.

A

Fabrics

24
Q

Fabric problem areas

A

deterioration
tension

25
Q

types of fabric weaving

A

plain
twill
satin
basket
leno
mock leno

26
Q

the direction along the length of fabric

A

wrap

27
Q

the direction across the width of the fabric.

A

fill or weave

27
Q

the number of threads per inch in warp or filling.

A

count

28
Q

the number of yarns making up a thread.

A

ply

28
Q

a cut, fold, or seam made diagonally to the warp or fill threads.

A

bias

28
Q

an edge which has been cut by machine or special pinking shears in a continuous series of Vs to prevent raveling.

A

pinked edge

29
Q

the edge of cloth, tape, or webbing woven to prevent raveling.

A

salvage edge

30
Q

condition of polyester fabric upon completion of the production process before being heat shrunk.

A

greige

31
Q

brushing or spraying where the second coat is applied 90° to the direction the first coat was applied. The two coats together make a single cross coat.

A

cross coat

31
Q

fabric covering process

A

blanket method
envelope method

32
Q

A plasticized lacquer that is applied to fabric-coated aircraft.

A

aircraft dope

33
Q

Aircraft Fabric Synthetic

A

STC approved covering material
Polyester Filaments
Covering Procedure
Installation

34
Q

Physical Specifications and minimum strength requirements for natural fabric fiber, cotton
and linen, used to recover or repair components of an aircraft.

A

Aircraft Fabric-Natural

35
Q

Aircraft Fabric | Natural

A

recovering aircraft
reinforcing tape
finishing tape
lacing cord
machine thread and hand sewing
PREPARATION OF THE STRUCTURE FOR
COVERING
Fairing Precaution
Dope protection

AMCR (3 decks)

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