metal technologies knowledgebase ?

Hi all
I starting a cores in “metal technologies” at a fresh teacher.
Does anyone now about web based ,knowledgebase ,or sites that could be a good introduction for this field?

what do you mean by metal technologies?

I mean metal processing technologies as: casting ,laser cut , water jet cut ,spinning ,milling and so forth.

i don’t think you’ll find any instructional sites but there’re manufacturers who sell the equipment and they might have books or cds on those.

Are you just looking for general info about those processes? Wikipedia is actually not bad. Also see for some more detail.