VTube Overbend Calculations for Springback

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Built-in Overbend Calculator

The Overbend Calculator is a built-in feature VTube-STEP and VTube-LASER that can calculate the fixed and proportional springback values to be included in the Part Setup menu.

These values have an effect the final bend angles when sending new data to the bender, and when making corrections to the bender.

Vtube-step-1.90-screen-with-overbendcalculator.png

Steps to Calculate Springback Values

STEP 1

Right click anywhere in the Part Setup menu and click on Overbend Calculator in the popup menu.

Vtube-step v2.2 partsetup popup overbendcalculator.png

STEP 2

Make a part with two test bends. Typically they are 20 and 120 degrees. The bender is set to bend these angles and a test tube is bent.

Vtube-overbendcalculator-page1.png

STEP 3

The actual resulting bend angles are measured and entered into the overbend calculator.

If you're using VTube-LASER connected to a FARO measuring center, then you can measure a test part, then copy the measured angles into the Overbend calculator.

Vtube-overbendcalculator-page2.png

STEP 5

Formula constant values are calculated and used in a springback formula to predict overbend to overcome springback at any angle.

Vtube-overbendcalculator-page3.png

STEP 6

Press the "Save to Part Setup" button. The values will now be displayed at the bottom of the Part Setup menu.

Vtube-1.90-partsetup-springback.png

Using Springback Values in VTube-LASER

These two calculated values will be used to calculate overbend to overcome springback when sending data to the bender in the BEND SETUP page in VTube-LASER. This image shows a button inside the Bender Setup menu in VTube-LASER.

Vtube-laser-1.90-bendsetup-sendSVwithspringback.png

Other Pages



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