Method series production of an outer column of a safety steering

Metal fusion bonding – Process – With condition responsive – program – or timing control

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228103, 228154, 228 9, 228 49B, B23K 3106

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active

043019595

ABSTRACT:
A method for series production of an outer column for a safety steering column for motor vehicles in which a first tubular blank is stepwise moved to a plurality of working stations in which the blank is deformed respectively punched to form a substantially smooth-walled protecting tube of the outer column. A second tubular blank is simultaneously moved to a working station in which it is transformed into a corrugated tube and subsequently the two tubes are fed against each other so that end portions of the tube overlap and the overlapping tubes are then welded together in a main welding station. Thereafter at least one pressed metal part is welded to one of the tubes at an auxiliary welding station. At least one control station is coordinated with at least one working station for the first tubular blank and at least one additional control station is coordinated with at least one of the welding stations for checking the work performed by the at least one working and the at least one welding station. After ascertaining of a faulty part in one of the control stations; at least operation of all working and welding stations upstream of the one control station is stopped under simultaneous arresting the part in the upstream working and welding station. Resuming of operation of the working and welding station is then permitted only after removing of the faulty part.

REFERENCES:
patent: 3470761 (1969-10-01), Okamoto
patent: 3621732 (1971-11-01), Kaniut
patent: 4161273 (1979-07-01), Jeffers
patent: 4163886 (1979-08-01), Omae et al.
"Dynamic Resistance Spot Weld Analyzer" by C. A. Keskimaki Western Electric Technical Digest No. 46, Apr. 1977.

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