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...work metals than with cold rolling. Cast ingot structures, at heavy deformations and at temperatures where recrystallisation occurs, promote recrystallisation. Control of the sheet temperature can produce fine-grained structures. Design: Shaped rolling can be used to produce a wide variety of useful-shaped sections in continuous lengths: this includes T, L and U sections,...

...work die steels are used for punches and dies. Lower forging loads are required than with cold forging, hence smaller-capacity presses can be used: e.g. maximum punch pressures for steel are: cold forging (62% reduction) 2000 MPa warm forging (62% at 600˚C) 1450 MPa Any critical dimension might need to be tightened by the addition of an extra coining or sizing operation....

...work of some sort of benign creator. Martin interprets this evidence differently. If we imagine that our Big Bang wasn't the only one, then naturally there would be some which have the requisite tuning for life to emerge, and we find ourselves in just that Universe. If there were many Big Bangs it shouldn't come as any surprise that in some of them the tuning is...