1. A process for the intensive study of a metal structure comprising the initial cutting lengthy hollow billet to length to obtain dimensional initial round billets transverse dimensions, multijunction dimensional drawing of a hollow billet through the die opening and the simultaneous calibration of the cavity mandrel, characterized in that the first transition stretch blank pipe initial transverse dimensions to obtain a first transition tube outer diameter is 97 ... 100% of the internal diameter of the hollow dimensional Zagot ki starting lateral dimensions, the resulting tube is placed in the first transition cavity billets initial transverse dimensions and stretch the tube to give lateral dimensions of the first transition, the resulting second transition tube is placed in the cavity of the initial tubular blank of the transverse dimensions and the cycle is repeated. ! 2. The process of intensive study of the metal structure according to claim 1, characterized in that the transitions between edits performed pipes. ! 3. The method of intensive study of the metal structure according to claim 1, characterized in that the transitions between the annealing of the pipes.
展开▼
