Rivets and sheet metal repair

Question 1

Classification of solid rivets

Answer 1

head shape, size, material

Question 2

no head mark rivet

Answer 2

code: A

soft rivet

Question 3

dimple mark rivet

Answer 3

code: AD

field rivet

Question 4

raised teat rivet

Answer 4

code: D

icebox rivets

Question 5

raised double dashed rivet

Answer 5

code: DD

hot rivets

Question 6

icebox rivets procedures

Answer 6

must be used within 20 minutes
can be reused and reheated once
used for primary structure (strong)

Question 7

raised cross rivets

Answer 7

code: B

magnesium rivets

Question 8

Types of MS rivets, rivet lengths & diameter

Answer 8

Flush Head (MS20426)
Universal Head (MS20470)

Rivet Dia: in increments of 1/32 inches
Rivet length: in increments of 1/16 inches

Question 9

Meaning of rivet code MS20470 AD - 4 -7

Answer 9

MS20470: head type (universal head)
AD: material code
4: diameter (4/32 inch)
7: length (7/16 inch)

Question 10

Rivet length formula

Answer 10

total material thickness +1.5D (D = rivet diameter)

Question 11

edge distance formula

Answer 11

2D (D = rivet dia)

Question 12

pitch distance formula

Answer 12

4D - 6D (D = rivet dia)

Question 13

4 quadrant of rivet specs

Answer 13

top left: fastener identity
top right: rivet diameter
btm left: dimple and countersink data
btm right: fastener length

Question 14

single chain rivet layout is used on

Answer 14

attachment and lightly stressed joints

Question 15

multiple chain rivet layout is used on

Answer 15

watertight joints, places with high stress

Question 16

upsetted head length

Answer 16

0.5 * Dia

Question 17

rivet length before upsetting (below sheet)

Answer 17

1.5 * Dia

Question 18

cleco colours and its size

Answer 18

silver/zinc = 3/32

brown/copper = 1/8

black = 5/32

brass/gold = 3/16