OEM/ODN Custom Metal Fabrication Bending Parts Services Custom
Metal Stamping Laser Cutting Services
What is CNC bending?
CNC bending, also known as CNC forming, is the process of reshaping
sheet metal from a flat shape. Using CNC bending technology, you
can produce almost any component design. A basic example of this is
creating a 90 degree bend that turns a flat sheet of metal into an
"L" shaped bracket
CNC stands for "Computer Numerical Control". This means that
computer software translates your designs into codes or numbers,
and it is these codes that control the press brake
Machines used for CNC bending are called CNC bending machines (or
brake presses). They can convert sheet metal with dimensions
ranging from a few millimeters to several meters long
2mm CNC Metal Bending,
powder coating CNC Metal Bending,
Laser Cutting precision sheet metal bending
Common Bend Types
Since overall bending is a relatively popular method, there are
also many different types of bending. The different types of bends
that we will discuss below are V-bends (consisting of three
different types of bends - air bends, bottom bends, and stamped),
wipe, roll bends, folds, and step bends
It is worth noting that over 90% of the bends are done using bottom
bends or air bends. All three V-bending methods are also the only
ones that use a press brake to get the job done, while the other
types use more specific machinery
Air bending, our first example, is a bending method that uses a
press brake to force the punch into the die, but not far enough
that the punch itself does not touch the walls of the die. This is
probably the least accurate method of sheet metal bending, but it's
still very popular due to its flexibility - it can make many
different bend shapes using the same machine and just adjust the
amount of force applied
Primer, on the other hand, is a sheet metal bending method where
the punch is pushed down more so that it touches the edge of the
die. This method is rarely used to create anything other than a
chevron, but it does have a lot of variation in the possible angles
of the chevron
Stamping is the last method of bending using a press brake, and one
that is less popular in the modern world. The main difference
between embossing and air bending/scaping is that embossing applies
several times more force to the material than either of the above
two methods. Imprinting offers higher precision than other methods,
but it is not as popular as it was some time ago due to the overall
improvement in mechanical precision and quality in recent years
Now that we've gone through the types of sheet metal bending using
a press brake, it's time to review the rest of the list, starting
with folding. Folding is a process similar in nature to wiping - a
portion of the metal sheet is clamped in place, and then the clamp
beam is raised to bend the metal into the desired shape. Positive
and negative angles are available, mostly used to provide V-bending
operations
Roll bending is pretty much the most unusual method on this list,
as its mechanical type consists of three constantly rotating
cylindrical rollers that turn the sheet metal into some kind of
arc. As the name suggests, its biggest use case is circular -
tubing, pipes, etc.
A step bend is the last example on our list (sometimes called a
bump bend) - and it's quite unusual in itself. it runs b
y Use the press brake to create several smaller V-shaped bends in
quick succession to make one large smooth (curved) bend for the
metal piece
This list is by no means complete and there are many other ways to
perform the bending process, but these are some of the more
commonly used examples that are representative of the overall scope
of the field
Product Description
| title | OEM Sheet Metal Processing Services Professional Laser Cutting
Bending Welding Stamping Processing Custom Sheet Metal Processing |
| Material | Steel, stainless steel, brass, copper, aluminum, etc. or according
to customer requirements |
| surface treatment | Drawing, polishing, electrophoresis, anodizing, powder coating,
electroplating, silk screen printing, laser engraving, etc. or
according to customer requirements |
| color | any color |
| Minimum order quantity for sheet metal fabrication | 1 sample available for testing, or as customer's request |
| Package | Multi-layer wooden box/pallet with large plastic bag inside |
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