PAES 312: 2001 Flashcards
A headed pin of metal used for uniting two or more pieces by passing the shank through a hole in each piece then by beating or pressing down the pain end so as to make a second head
Rivet
Diameter of the shanks
Nominal diameter
The length from the underside of the head to the end of the shank
Nominal Length ( rivets other that countersunk or raised countersunk rivets)
The distance from the periphery of the head to the end of the rivet measured parallel to the axis of the rivet
Nominal length ( countersunk and raused countersunk head
A type of riveted joint wherein the plates overlap each other and are held together by one or more rows of rivets
Lap joint
Type of riveted joint wherein the plates being joined are in the same plane and are joined by means of a cover plate or butt strap which is rivited to both plates by one or more rows of rivets
Butt joint
spacing between rivet centers
pitch
distance from edge of the plate to the centerline of the nearest row of rivets.
margin
allowance in length of rivet in order to turn over or flatten the protruding end.
clinch allowance
Uses of cold forged rivets
general purpose
uses of Semi-tabular rivets
general purpose
used when the reverse side of the joint is not accessible or is too restricted
blind rivets
recommended clinch allowan of rivet diameter
50% to 70%
