METHOD OF MAKING MISSILE BODIES Russian patent published in 1997 - IPC

FIELD: plastic metal working, possibly tube rolling plants including helical rolling mills and mills for hot drawing operating with use of sleeve-type blank. SUBSTANCE: method is realized with use of waste missile body as blank. Method comprises steps of cutting off 20-40% of body length of variable-diameter part of missile; heating sleeve- type difference-thickness portion of vertically arranged body with its bottom turned upwards in inductor until achieving uniform temperature; guiding uniformly heated difference-thickness sleeve by its bottom to rolls and helically deforming it by means of three rolls on shaped mandrel; pushing sleeve on said mandrel through row of drawing dies or draw plates. EFFECT: enhanced accuracy of missile body due to accurate dimensions of waste missile body, uniform heating and helical rolling of blank in three-high stand.