http://www.cadfamily.com/downinfo/300395.html
Aim should be to reduce warpage to within design tolerances Need to have well defined criteria for measuring warpageIt is generally not practical/possible to reduce warpage to zero
Take measures to reduce the effect of the dominant warpage contributorDifferential coolingArea shrinkageOrientation effectsAdd stiffing features to the partChange the materialUse analysis results to help determine how to reduce the warpage.
Caused by temperature differences through the thickness of the part, i.e. cavity to core differencesConcentrate on improving the cooling, particularly inside cornersTo look for a suitable approach to resolve the warpage, concentrate on the following cooling results Temperature (top)Temperature (bottom)Temperature difference, partTemperature profileBending curvature
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