METHOD FOR MAKING ARTICLES WITH CROSS SECTION VARIABLE ALONG THEIR LENGTH

plastic metal working. SUBSTANCE: method comprises steps of rolling tubular thin-wall blank between non-driven rolls for forming twinned stepped blank with cross section area lowered from its ends towards central portion; before final pass of each step changing rolls for mounting rolls with changed...

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Bibliographic Details
Main Authors AGAS'JANTS G.A, ZUBER D.L
Format Patent
LanguageEnglish
Published 20.04.2001
Edition7
Subjects
MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS,WHEELS, RINGS, BARRELS, BALLS
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PUNCHING METAL
TRANSPORTING
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Summary:plastic metal working. SUBSTANCE: method comprises steps of rolling tubular thin-wall blank between non-driven rolls for forming twinned stepped blank with cross section area lowered from its ends towards central portion; before final pass of each step changing rolls for mounting rolls with changed grooved pass; changing value of tension effort applied to one end of blank at each rolling pass in dependence upon its cross section area in current pass; at terminating rolling process separating blank by two parts. EFFECT: possibility for making elongated non- rigid thin-wall tubular products with cross section variable along their lengths due to providing accurate diameter of blank in each pass. 6 dwg, 1 tbl
Bibliography:Application Number: RU19990111923