FIELD: process engineering.
SUBSTANCE: invention relates to production of cylindrical part with unlimited-length bore and small cross-section area. Cylindrical part is made from two twisted strips. At least one recess is premade at one of said strips that makes a would-be bore of cylindrical part.
EFFECT: production of cylindrical part with unlimited-length bore, compact design.
6 cl, 3 dwg
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Authors
Dates
2014-02-20—Published
2012-09-11—Filed