Wa. Khudheyer et al., PASS GEOMETRY AND MACROSHEAR REDUNDANCY EFFECTS IN A 3-ROLL CONICAL OBLIQUE TUBE PIERCING PROCESS, Journal of materials processing technology, 45(1-4), 1994, pp. 341-345
The 3-roll conical tube piercing process has been investigated experim
entally using marked wax billets for a r sic of plug profiles, feed an
gles, plug advances and billet/gorge diameter ratios. A general correl
ation is demonstra sic between the level of redundant strain and the g
eometric characteristics of the pass, and optimum conditions to minimi
se the level of redundancy are identified.