overcure

Tensile testing of free films prepared at different bake temperatures is useful in establishing the effects of undercure and overcure. Individual results are not as significant as data patterns.

It was resulted a surface finish with a noticeable distributed roughness as well as low chordwise ridges due to resin overcure in at the build layer interfaces.

For example, the end points of the surface hatching passes stop one beam radius from the outer perimeter of a surface to avoid overcure.

A detailed study of some important build parameters which affect the quality and accuracy of the final stereolithography parts, such as the layer thickness, resultant overcure, hatch space, blade gap, and part location can be found in (Zhou et al, 2000).

Cracking and chipping are associated with overcure, as are difficulties with adhesion of repair coats and topcoats.

To study the influence of the energy dose on the temperature of the layer surface, the same vector was built using two different values of overcure. During SL processing, overcure is necessary to obtain a good adhesion between adjacent layers [1].

Rubber near mold surfaces experiences longer heat history (overcure), while centrally located rubber in the thickest parts may be somewhat under-cured at the end of the curing cycle.

However, it is preferable to have some bubbles inside the part, than to overcure it.

Variations in mold temperature, whether in-cavity or at the parting line, are said to result in poor and inconsistent parts or a tendency to overcure to compensate, with attendant power consumption costs.

The data show that with just 1 min overcure, i.e., the increase of oven time from 10 to 11 min, the low temperature impact strength decreases from 64 ft[center dot]lbs to 20 ft[center dot]lbs, a decrease of nearly 70%.

Variations in mold temperature, whether incavity or at the parting line, are said to result in poor and inconsistent parts, or a tendency to overcure to compensate, with attendant power consumption costs.