MANUFACTURE OF WELDED TUBE

PURPOSE:To control the fluctuation of the position of a welding part and to irradiate the welding part with high precision with a laser beam by restraining the oscillation in the circumferential direction of an open tube. CONSTITUTION:The edge parts E, E on both sides of a metal band are curved to f...

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Bibliographic Details
Main Author HAYASHI TOMOTAKA
Format Patent
LanguageEnglish
Published 08.02.1994
Edition5
Subjects
AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
PUNCHING METAL
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Summary:PURPOSE:To control the fluctuation of the position of a welding part and to irradiate the welding part with high precision with a laser beam by restraining the oscillation in the circumferential direction of an open tube. CONSTITUTION:The edge parts E, E on both sides of a metal band are curved to face oppositely to each other with a forming roll, further formed in a shape enclosed with plural arcs projecting outside or an elliptic shape by means of a final fin pass roll 5, and after preheating by a high frequency preheater 7 and melting by a laser beam, the edge parts are held in-between and abutted with a squeezing roll 9 which is provided with a bore of nearly an identical shape as the bore of the fin pass roll.
Bibliography:Application Number: JP19920210998