Sheet Metal Forming Tools

AVT 206

When forming sheet metal

it does some shrinking and some stretching.

True or False hardened aluminum can’t be formed as much as other materials

True

As metal bends, the inside side

shrinks

As metal bends, the outside

stretches

The cornice brake is great for

long, straight bends

The cornice brake is limited to

simple bends

a technique used to adjust the bend radii is to

use shims

a disadvantage of the Box and Pan Brake (Finger Brake) is

tougher to adjust the bend radius.

a press brake is used to bend

heavier gauges of metal

a slip roller can

form cylinders and cones (and parts of each)

stretch forming is used to form

compound curves

True or false stretch forming can be done using ordinary hand tools

false it Requires very expensive molds and tooling strong enough to handle the forces involved.

metal spinning is used to form

smaller circular parts

a hydro press is used to form

bulkheads, stringers, channels, ribs, etc.

the English wheel is a method of forming parts by

thinning the metal between two wheels.

true or false using the English wheel is a skill

true

the stretcher/shrinker hand or foot tool keeps the metal in pristine shape

false it scars the material

true or false you can only use the shrink function on the stretcher/shrinker hand tool because it tears aircraft aluminum

true

the Piccolo Former

Combines elements of shrinker/stretcher and planishing hammer

Sheet metal can be formed and planished (finished) over

metal dollys and stakes

if care isn’t taken to the face of a metal dolly and stakes it will

transfer to every project you did forever.

any aircraft part can be formed on

custom cut wood blocks.

can you reuse custom cut wood blocks

no

The wood block or form is shaped to the

exact dimensions of the part to be formed.

sandbags can be used as

adjustable backing for work with hammers, etc