Process and device for splicing metal shafts by arc welding and

Details Process and device for splicing metal shafts by arc welding and Process and device for splicing metal shafts by arc welding and

1981-07-10

1984-06-19

Shaw, C. C.

Electric heating

Metal heating

Wire, rod, or bar bonding

219106, 219137R, 403272, 428574, 428584, B23K 900, B23K 3108

Patent

active

044554680

ABSTRACT:
An improved process is disclosed for splicing metal shafts, in which a pair of shafts (10, 12 or 44, 46) having transverse end surfaces (30, 32 or 54, 56) preferably substantially normal to the axes of the shafts, are positioned coaxially with an insert (34, 48) positioned between and abutted to the end surfaces. The insert is tapered or wedge-shaped at either end to define transverse contact surfaces (18) which abut the end surfaces of the shafts. The angle (.beta.) of the taper on the insert permits insertion of a consumable arc welding electrode (20) into the convergent space defined between the end surfaces of the shafts and the tapered surfaces of the insert and is large enough to allow the arc welding electrode to be positioned at locations not only sufficiently spaced from both the tapered surfaces and the end surfaces but also sufficiently close to the area of abutment between the contact and end surfaces, to ensure proper welding penetration into the base metals. Expensive machining of the ends of the shafts themselves, as practiced in the prior art, is avoided by the use of the insert. Alternatively, one shaft may be machined to a tapered or wedge-shaped configuration (42) and the other shaft left in its as-sawed condition, a technique which embodies certain novel aspects of the invention but eliminates the need for an insert.

REFERENCES:
patent: 2195256 (1940-03-01), Palmer
patent: 3024347 (1962-03-01), Esser
patent: 3171013 (1965-02-01), Danhier
patent: 3770302 (1973-11-01), Hallenbeck
patent: 4164311 (1979-08-01), Swisher

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