Aircraft part fabrication

Question 1

cold working process and aircraft parts

Answer 1

metal is heated above critical point and rolled into sheets, bars, channels

used for wing root end skin & raised stiffeners

Question 2

extrusion process and aircraft parts

Answer 2

uniform cross sections are extruded under pressure within shaped dies
into shapes like : T, U, I, V, L

used on ribs, spars or fuselage bulkhead

Question 3

forging process and aircraft parts

Answer 3

while metal is in hot and plastic state, it is forged by power hammers, hydraulic presses

wheel hubs, window frames

Question 4

forming process and aircraft parts

Answer 4

further processed by re-rolling to form Z, S sections to be used as skin stiffening stringers

leading edge for wings, formers for fuselage

Question 5

stamping process and aircraft parts

Answer 5

pressing on stamp sheets for high volume parts with identical shape and thickness

wing ribs

Question 6

casting process and aircraft parts

Answer 6

using liquefied metal poured into moulds to form intricate shapes

cooling fins of engine cylinders, small brackets

Question 7

spinning process and aircraft parts

Answer 7

thin sheets are rotated and shaped with a blunt tool

propellers spinners, hub caps

Question 8

blind rivets applications

Answer 8

in inaccessible parts of the structure

Question 9

NACA riveting usage

Answer 9

used in fuel tanks areas as it is a leak-proof self-sealing joint