cup-and-cone fracture

cup-and-cone fracture

[‚kəp ən ′kōn ‚frak·chər]
(metallurgy)
References in periodicals archive ?
6, for all three cone semi-angles investigated, the extrudates produced exhibited multiple cup-and-cone fractures and fragmented on handling, preventing any assessment of lateral expansion.
The increase in structural integrity of the extrudate obtained with the 8 mm exit diameter die was substantial, with the severity and numbers of cup-and-cone fractures being dramatically reduced, although Fig.
Without the compaction stage and in the absence of strong interparticle bonds, the particles were able to separate so vigorously on escaping the die constraints that multipie cup-and-cone fractures were caused and the bulk material fragmented.
The fact that the specimens, whether they were produced using a cone semi-angle of 30[degrees], 45[degrees] or 60[degrees], exhibited multiple cup-and-cone fractures along their lengths leads ultimately to the conclusion that the variation of cone semi-angle alone is insufficient to impart the combination of a good structural integrity and the desired microstructure to the extrudates.