METHOD OF MAKING WELDED THIN-WALL CONICAL SHELLS WITH STIFFNESS RIBS Russian patent published in 2014 - IPC B23K31/02 B23K33/00 B23K37/04 

Abstract RU 2510686 C1

FIELD: process engineering.

SUBSTANCE: this intention is used for making thin-wall conical shells with stiffness ribs by welding. Shell segments are made. Segment lengthwise edges are turned up to make stiffness ribs while segments are placed at detachable support plates arranged on carcass base to make a conical surface with clearance between lateral edges of adjacent support plates. Shell segments are placed at said carcass with turned up edges in clearances between support plates. Segments are subjected to transverse contraction unless edges of adjacent segments are jointed. Then, said segments are locked at said base and welded together along the lengthwise edges from outside. Then, detachable carcass support plates are withdrawn. Produced shell is withdrawn from said carcass together with detachable plates. Produced shell is machined. Welded shell has stiffness ribs made integral with the material of segments to up the strength.

EFFECT: higher reliability.

7 dwg

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RU 2 510 686 C1

Authors

Afonin Igor' Aleksandrovich

Gejkin Valerij Aleksandrovich

Nikitin Aleksandr Ivanovich

Poklad Valerij Aleksandrovich

Sharonova Natalija Ivanovna

Dates

2014-04-10Published

2012-10-25Filed