The new edition of this text provides up-to-date coverage and focuses on manufacturing in the real world. It features a thorough updating of material, particularly automation and other computer-oriented topics, modern materials and non-traditional manufacturing methods, especially rapid prototyping. New categories of homework problems are also included, namely, review questions, quantitative problems, qualitative problems and synthesis and design questions.
I read this book in second semester for MEL120 (and referred back to it in 5th semester in a hands-on course on MEP 202 Design, Innovation and Manufacturing and in 7th semester in MEL 434 - Design for Manufacturing and Assembly) during undergrad in Mechanical Engineering at IIT Delhi.
As I and many other mechanical engineering students deride (and sometimes hate) manufacturing courses - making you do physical labor like an industrial worker and mental labor reading fat books like this one, it would be surprising to some why this book has such a nice rating (currently 4.22).
The reason is that it is really an excellent book. It is so good that having read it cover to cover wouldn't make you regret it later on when most of us (mechanical engineers) don't go into manufacturing industry (speaking statistically, not from intuition). While it is heavily based on technology i.e. it is application-based, it does talk about the fundamental scientific basis of several technologies.
Not only within the realms of being an undergrad in engineering, but even for an engineer in industry, this is a definitive reference book (in my opinion).