Sheet Metal and Non-Metallic Structures Flashcards
What is the proper dimension of a properly formed rivet shop head?
height=1/2 diameter of rivet shank, width= 1 1/2 diameter of rivet shank
What is done with the damaged area in bonded honeycomb structures?
remove damage, install a wet lay-up core, prepare and install repair plies, and cure
What calculations must be made when bending sheet metal?
developed width, set back, bend allowance, sight line, flat
How do you determine the proper material to be used for a repair of an all metal aircraft?
Aircraft Structure Repair Manual
What is the purpose of a sight line when bending sheet metal?
to serve as a guide for placement of the material in a break
What must be done to the area where two bends intersect when bending sheet metal?
drill relief holes usually 2X diameter of bend radius
What is the purpose of countersink for some type of rivet installation?
streamlined airflow
What is the purpose of the markings on the manufactured head of a solid rivet?
rivet alloy
Using the general rule when installing rivets in an aluminum structural member, what is the maximum allowable distance between solid rivets in a single row?
10X rivet diameter
As a general rule, when installing rivets in an aluminum structural member, what is the normal distance from the edge of the material to the center of the rivet closest to the edge?
no less than 2X and no more than 4X rivet diameter
What determines the diameter of solid rivet required for a given rivet installation?
3 times the thickness of the thickest material
What is an advantage of using aluminum or composite honeycomb panels in the fabrication of airframe structures?
greater strength to weight ratio
Name three test methods used to detect delamination in a composite structure?
coin tap, ultrasonic, radiography
Give an example of a self plugging mechanical lock rivet.
Cherry Max
What tools are required to install cherrylock rivets?
special pulling tool
