Product category:
Cold roll forming systems and software
News Release from: UBECO | Subject: Rollforming software
Edited by the Manufacturingtalk Editorial
Team on 28 November 2003
Calculating rollform tools' critical
areas exactly
Critical areas of rollform tools, such as bending zones, can be calculated with higher resolution using profile stress analysis software as part of a three steps quality management concept.
At the recent Fabtech show in the USA, UBECO showed the "Profile Stress Analysis" (PSA) that is a part of the three steps quality management concept for rollform tools designers The sheet surface is divided in small rectangular shell segments
This article was originally published on Manufacturingtalk on 9 Oct 2003 at 8.00am (UK)
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FEA verification of rollform tooling performed
Simulation software enables a roll-pass designer to verify the designed roll tool set for rollformed profiles and tubes by using the Finite Element Analysis (FEA).
The segment width and with it the precision of calculation can be defined by the user.
Critical areas like the bending zones can be calculated with higher resolution.
While running through the rollforming machine, the rectangles are formed to general quadrilaterals.
From lengthening or shortening of the edges the expected strain and from it the stress can be derived.
The stress related to the yield point of the material is assigned to a color in the range between blue (0%), green (50%) and red (100%).
In the 3D model critical areas can be detected by red colored shell segments.
The designer can use the mouse wheel to rotate and zoom the model to examine any detail.
The profile stress analysis is an integrated feature of the software PROFIL and works without FEA (Finite Element Analysis), this means the results are available after key-stroke immediately.
Further parts of the quality management concept are: "Stress of Band Edge" that works simultaneously while designing and "Virtual Rollforming Machine" that simulates the rollforming process by FEA (Finite Element Analysis).
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