one off plug/mould

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one off plug/mould

Author	Message
jaffa	jaffa posted 9 Years Ago HOT Topic Details
Group: Forum Members Posts: 17, Visits: 325	I want to make some one off ducts in Carbon, smooth on the inside for airflow. I've made a rough male plug and about to skin it and apply pattern coat primer. My question, can I infuse straight onto this surface, then just remove the plug/mould from inside (ensuring there's no mechanical lock) or will the primer not tolerate the resin? Seems a waste of materials to make moulds as they'll be fairly big
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Hanaldo	Hanaldo posted 9 Years Ago HOT Post Details
Group: Forum Members Posts: 2.5K, Visits: 28K	The primer would handle the resin fine, your issue will be crushing the plug. Don't underestimate how strong vacuum can be, if it was me I'd be putting at least 3 layers of 450g CSM on the plug to ensure it can handle the pressure. You will also have to envelope bag it, which with infusion inevitably leads to resin getting into places you don't want it to. Essentially you are just making a male mould, so it can be done. You just need to think about how it will release and make sure it can handle the process.
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nc42	nc42 posted 9 Years Ago HOT Post Details
Group: Forum Members Posts: 23, Visits: 365	Another option is to make your plug longer on the ends than your part, essentially making flanges on it. Then you don't have to worry about envelope bagging and crushing your plug
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Hanaldo	Hanaldo posted 9 Years Ago HOT Post Details
Group: Forum Members Posts: 2.5K, Visits: 28K	Brake ducts are essentially a tube though, so it will always need envelope bagging unless you made a split mould.
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jaffa	jaffa posted 9 Years Ago HOT Post Details
Group: Forum Members Posts: 17, Visits: 325	Hanaldo (20/11/2015) Brake ducts are essentially a tube though, so it will always need envelope bagging unless you made a split mould. yes, envelope bagging or split mould. I suspect I will need to both depending on the shapes I end up with. Thanks all
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