Forming by Draw Bench, Power Rolls and Spinning & Heat Treatment of Aluminum Alloys

They can define the process every bit as well as I can...

"The draw bench is used in the aircraft industry for forming long, narrow parts of uniform cross-section, such as the angles, channels, C sections, and hat sections used for stingers and stiffeners."

"One of the fastest methods of forming long, narrow parts of the same cross-section throughout their length is by the use of roller dies in roll forming machines."

"Metal spinning is the shaping of a disk of metal to a hollow form while the disk is revolving rapidly in a lathe."

You'll learn how it works, multiple-draw dies, roller dies, drawing streamline tubing, oprations of a roll forming machine, use of contouring rolls, rolling a gasoline tank cradle, spinning tools, spinning chucks, size of blank and lots more. Each section is short, and straight to the point. And the illustrations are top rate.

The second booklet covers the details of aluminum heat treatment with types of alloys, cooling curves, theory of solution and precipitation treatments, theory of annealing, salt-bath furnaces, electric air furnaces, fog quench booth, solution heat treatment, soaking period, prevention of distortion, age hardening, refrigeration of quenched parts and much more.

More unusual detailed how-to from the guys who built the aircraft of World War II. Maybe it's time to consider building a full-size B-17 in your basement. You'll need this. Get one. 5-1/2 x 8-1/2 softcover 84 pages

No. 23799 ... $9.95