Metal working – Method of mechanical manufacture – Structural member making
Patent
1991-07-16
1992-11-17
Eley, Timothy V.
Metal working
Method of mechanical manufacture
Structural member making
B21D 3902, B20B 3500
Patent
active
051632268
ABSTRACT:
Two embodiments of a method for forming a banjo type axle housing are disclosed. Initially, one end of a tube is split into upper and lower sides by forming a pair of opposed longitudinally extending slots therein. The sides are spread apart from one another to form a yoke-like end portion. A second tube is formed in a similar manner. The two tubes are then positioned end-to-end such that the end portions abut one another. Next, the abutting end portions of the tubes are welded together to form the basic housing structure. Preferably, the upper and lower sides of such end portions are slightly spread apart from one another to introduce desirable surface compressive stresses in the welded housing. A mounting plate is then secured to the axle housing on opposite sides of the opening. The mounting plate is provided with a generally oval shaped opening. Flanages are then secured to or formed integrally with the ends of the axle housing. The flanges are used for precisely locating apertures which are next formed through the mounting plate. Such apertures are provided for mounting a carrier for the axle assembly onto the banjo type axle housing. Alternatively, the apertures can be pre-formed through the mounting plate. In this event, the mounting plate is precisely positioned relative to the banjo type axle housing by means of the flanges before being secured thereto. In both embodiments, the apertures formed through the mounting plate are precisely positioned relative to the flanges at the ends of the tubes.
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Dana Corporation
Eley Timothy V.
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