I forgot about this one since my server doesn't have Xycraft: if you have Xycraft fabricators and MFR item routers handy, you could program an "incorrect" recipe that has ingots in place of the dust, put it into an interface that over the MFR item router, configure the router to distribute the ingots to be pulverized into the pulverizer, and pipe the rest into a chest. Place the fabricator such that it's adjacent to both pulverizer and chest, set the correct recipe into it with NEI, and slap an import bus on the side of it back into your system.
A little convoluted, but it lets you do your autosmelting as is while still on demand crafting without setting up an AE subnet.