FIELD: process engineering.
SUBSTANCE: invention relates to metal forming, particularly, to production of pipes. Case working parts is composed of two or more spindles fitted one inside the other to turn about its lengthwise axis while rollers are fitted at spindle free ends on angle plates to run unobstructed in planes perpendicular to tube axis.
EFFECT: expanded processing performances, ease of etraction after shaping.
4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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SU1733171A1 |
