The mold below was injected PA66+30% GF, the warpage was huge could not be improved much even though we tried the different mold temperature on cavity and core side, or changed the injection speed, injection pressure, lengthened the packing time.

Until we changed the resin to PC approved by our client, the deformation issue was almost done.

Hope this case can be reference for you.

PA and PC injection molding deformation.JPG