Molding Process
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PARA Rib Plate Edge Effect
Problembeschreibung
In ribbed PARA products, the ribs push the base plate to deform; fibers at the rib upper edge are strongly oriented, and flatness is out of tolerance.
Ursachenanalyse
Flow in the rib produces fiber orientation at an angle to the base plate; the relative thickness of rib and base plate determines the orientation difference; the most typical influence of Ixef PARA is the formation of a strongly oriented fiber layer at the rib upper edge, with shrinkage in the flow direction almost zero, and the rib top pushes the part out of plane.
Lösung
①Design rib thickness at 50~60% of the base plate; ②Optimize rib position and direction; ③Local thickness adjustment to guide flow; ④Warpage simulation to verify rib influence.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Wichtigste Erkenntnis
The edge effect of PARA rib plate design is a material characteristic; thickness ratio and position are design variables; simulation analysis predicts deformation in advance.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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