Understanding Springback; Material Selection - Baileigh Industrial BP-3305CNC Operator's Manual

34. When the die area and work piece swing area are clear, press and hold the Down foot pedal
to complete the bend.
a. The foot pedal may be released when the ram is lowered enough to engage the down
travel limit switch. If the foot pedal is released before the down travel limit switch is
engaged, the ram movement will stop. Press the Up pedal to lift the ram and start
again.
35. After a short pause based upon the HT time. The ram will raise back to the up position and
wait until the next bend command from the foot pedal.
36. The RP value will determine if the system remains on this station screen or moves to the
next station scree. If the RP: value in the top line of the display = 1/1, or 3/3, or 10/10 then
the system will advance to the next station screen. If the first number of the RP line is < the
second number, the system will repeat the same bend parameters from the same station
screen.
37. When all of the programmed stations have been completed CP number will count down by 1
until it reaches zero. Then the system will automatically stop and wait for operator input.
38. A Multi-bend has been completed.

UNDERSTANDING SPRINGBACK

Springback, also known as elastic recovery, is the result of the metal wanting to return to its
original shape after undergoing compression and stretch. After the bending leaf is removed from
the metal and the load is released, the workpiece relaxes, forcing the bent portion of the metal
to return slightly to its original shape. The key to obtaining the correct bend angle is to over bend
the metal a little and allow it to spring back to the desired angle. All metals exhibit a certain
amount of spring back.

MATERIAL SELECTION

CAUTION:
processed through the machine are NOT potentially hazardous to operator or
personnel working nearby.
When selecting materials keep these instructions in mind:
• Material must be clean and dry. (without oil)
• Material should have a smooth surface so it processes easily.
• Dimensional properties of material must be consistent and not exceed the machine capacity
values.
It must be determined by the customer that materials being
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