The Cadfil plate winding software is a program that generates full numerical control (NC) data for the winding of flat plate mandrels.
Organisations working in research and development or in design and quality management often have a requirement to make flat specimens to perform tensile tests, flexural tests, fatigue tests, impacts tests......
It can be difficult to obtain full design data from tests on standard filament wound samples e.g.. rings and pipes, it is also difficult to make true comparisons with composites made from other manufacturing processes. The CADFIL-Plate software is a ready solution to these problems as it allows an interwoven +/-angle winding onto a rectangular flat plate mandrel.
Its is possible to produce multi-angle wind angle programs comprising of any combination of ± wind angles. For example, it would be possible to wind 4 layers of ±150, followed by 3 layers of 900 to imitate the fibre layup on a specific filament wound part.
For the full range of angle combinations, the plate mandrel must be such that it has adjustable shafts that allow the winding to be stopped and the plate to be changed over so that it can be rotated it about its other axis. A mandrel or mandrel drawings to allow the customer to manufacture a mandrel can be supplied as required. Low cost mandrels can be used.
The user creates a control file with parameters such as plate height, width and thickness, band width, wind angle and required sample length and some other control parameters. The software automatically creates NC data for 3-6 axes (for most applications only 3 axes are required, mandrel rotation, carriage and cross-feed). Fibre and payout paths and a mandrel definition can be automatically created for visualisation in the CADFIL software.
The machine positions are calculated to give close control of the fibre payout and fibre speed to prevent fibre breakage on the plate edge. High quality windings can be produced by the software.
Because flat plate windings have poor fibre consolidation some pressure is required during curing. This can be done by curing in a press, but satisfactory results can be obtained by curing the wound plate between steel sheets with a weight placed on top.
Following selection of the PLATE parametric option at the QuickCAD menu.
***** PLATE PARAMETRIC *****
No. OF POINTS ON TURN RADIUSP
FACE ADVANCE PARAMETER
WIND ANGLE (DEGREES)
REQUIRED WIND LENGTH
CLEARANCE TOP EDGES
END (OVERSHOOT) CLEARANCE
START POS. FROM PLATE END