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