| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: adapter unit contains mandrel, installed on stud, fixed in cap with clearance. Stud is implemented with profiled outside surface, corresponding to profile of internal mandrel tool bore with equal amount of verges ëÑ3, profile stud is connected to profile cap by all planes of contact, amount of which is defined by equal number of verges ëÑ3. ^ EFFECT: mandrels rapid change, improving of tube internal surface and stableness increasing of mandrel. ^ 2 dwg, 1 ex |
