Stages of Discontinuities Flashcards
1
Q
Where are inherent discontinuities from?
A
They originate from the solidification of cast or molten metal
2
Q
Besides the solidification of cast or molten metal, where else can inherent discontinuities come from?
A
bulk consolidation methods, such as press and sinter, as well as composites
3
Q
Where do primary processing discontinuities originate from?
A
hot or cold working of an ingot into forgings, rod and bar, pipe and tube, and from welding
4
Q
Primary processing discontinuities may also be found in …
A
composite materials
5
Q
Where do secondary processing discontinuities originate from?
A
“finishing” operations such as machining, grinding, heat treating, and plating
6
Q
Where do service-induced discontinuities originate from?
A
during the use of the part
