The DESIGN of SHEET for PRODUCTION METAL AIRCRAFT PARTS 440205
THE problem of sheet metal production design is separated into two parts, the determining of working limits of elongation and compression in different types of sheet metal forming, and the application of these limits to the design for formability. This paper is concerned with the second part of the problem.
An analytical method of approach is suggested and is illustrated by five examples.
In the case of curved flanges, flanged holes, and beads, formulas are given by which the amount of elongation or compression called for by the design may be computed directly from the dimensions given by the design.
A possibility for a refinement in the use of the formulas is indicated, and an experimental method for achieving this refinement is pointed out.
