i want to learn (in detail) about about the different fabrication procedures, where do i look?

i am a mechanical engineer involved in design of chassis for electronic equipment. i would like to study about the merits, demerits, suitability of the various fabrication processes used in the industry (in particular Milling and Pressure die casting).
please guide as to where i will find relevant pdfs and videos (unfortunately youtube is blocked in my office).

How big are your chassis? Pressure die casting is good for smaller parts and really high volume production parts. Milling could be done on any material and on any quantity. I would say your vendors would be the best source of information on which process to choose. It will come down to price, size and quantity.