Mold Vents
- March 10, 2015
- 3 replies
- 2873 views
How does everyone handle mold gas escape vents?
I find that we spend a lot of time and create many features to model in mold gas escape vents especially on contoured parting lines.
We start by projecting a curve “X” distance away from the part edge on to the parting line surfaces. The “X” distance would be our land, say 0.050”. We then create many sweeps, variable section sweeps, and boundary blend surfaces wherever they work. The sweep will have a circle, say 0.196 diameter, as a section swept along the projected trajectory. Some sweeps will only go so far around the projected cure so you will have to make multiple sweeps, merge them all together, and make a solid cut with the surfaces (see attached image, vents are in red). The programmers will then use these cut to program the vents. Depending on the complexity of the parting line, this can take many hours and features. If we receive a new model to put into the mold split, we have to do the process all over again. Is there a better way?
Thanks,
Dan
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