sheet metal midterm
Using Rivet Code : AN426 AD5-6 What is the shape of the rivet head?
round
flat
universal
countersunk
Using Rivet Code : AN426 AD5-6 What is the 4 digit alloy code?
5056
2017
2024
2117
Using Rivet Code : AN426 AD5-6 What is the major alloying element?
none
copper
maganese
silicon
Using Rivet Code : AN426 AD5-6 What is the mark on the rivet head?
cross
dimple
dash
double dash
Using Rivet Code : AN426 AD5-6 What is shear strength of this rivet?
28ksi
30ksi
34ksi to 38ski
41ski
Using Rivet Code : AN426 AD5-6 What is the diameter of this rivet?
3/32
1/8
5/32
3/16
Using Rivet Code : AN426 AD5-6 What is the minimum edge distance?
3/8
5/16
1/4
25/64
Using Rivet Code : AN426 AD5-6 What is the minimum pitch?
3/8
5/8
1/2
35/64
Using Rivet Code : AN426 AD5-6 What is the correct drill size?
#11
#20
#30
#40
Using Rivet Code : AN426 AD5-6 What colour of cleco is required?
zinc
copper
black
brass
Using Rivet Code : AN426 AD5-6 What is the length of the stem? (amount of rivet sticking out bottom of metal)
9/64
9/32
15/64
3/16
Using Rivet Code : AN426 AD5-6 What is the length of the rivet?
7/16
3/8
5/16
1/4
Using Rivet Code : AN426 AD5-6 What is the grip?
3/16
9/64
1/8
7/64
11/64
Using Rivet Code : AN426 AD5-6 What are the shop head dimensions?
9/64 by 3/64
3/16 by 1/16
15/64 by 5/64
9/32 by 3/32
What is a bucking bar used for?
Making the shop head
Making the manufactured head
Drilling a hole
Making a bend
What is a brake used for?
Bending metal
Cutting metal
Shaping metal
Drilling metal
For a closed angle of 60 degrees between the legs, how far you must bend the work?
60 degrees
Less than 90 degrees
120 degrees
More than 360 degrees
Why do we joggle material?
To give added length
To increase the edge distance
To decrease the edge distance
To produce a flush fit on overlapping skins
You are laying out a part to be fabricated which includes a bend, two lines are drawn where the bend will be. What is the area between the lines called?
Bend allowance
Sight lines
Neutral axis
set back
What is the name of the layout line on a piece of sheet metal which is set or placed even with the radius bar (brake nose)
Neutral axis line
Bent tangent line
Setback line
Sight line
When drilling holes for AN470 rivets, the minimum edge distance should be?
1/4 inch in all cases
1 1/2 times diameter of rivet
2 times diameter of rivet
2 1/2 times diameter of rivet
What is the formula for finding Set Back?
K factor + Radius
Radius + thickness
Bend radius chart x Degree of bend
Radius X Thinness
what is the minimum pitch for a single row of AN470 AD4-6 aircraft rivets?
Two times the diameter of the rivet shank
Two and one half times the diameter of the rivet shank
Three times the diameter of the rivet shank
Five times the diameter of the rivet shank
What is the distance between rows of rivet called?
Edge distance
Transverse
Gauge
Pitch
What is the main purposes of de-burring holes
Prevent corrosion
Ensure a tight fit
Prevent personal injury
Ensure proper countersinking
Why would you dimple an aluminum skin instead of countersinking it for installing flush rivers?
Dimple because it is better than countersinking
The aluminum skin is too thin to countersink
Countersink because it is better than dimpling
The aluminum skin is too thick to countersink
What does Total Developed Width (TDW) calculation tell us?
Type of material used
Width of material needed
Total number of degrees needed
Width of bend radius
What is the bend radius?
The radius of the bend
The minimum bend radius
The maximum bend radius
The thickness of the metal
What is the calculated flat?
The flat size after removing setback
The flat size after removing the sight line
The flat size after adding the set back
The flat size after adding the radius
What is the main stress a rivet is designed to with stand?
Tension
Shear
Compression
Torsion
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