B - Operations – Transporting – 21 – J
Patent
B - Operations, Transporting
21
J
78/4
B21J 9/06 (2006.01) B21C 37/15 (2006.01) B21C 37/20 (2006.01) B21J 5/12 (2006.01) B21K 1/56 (2006.01)
Patent
CA 1172878
F?RENADE FABRIKSVERKEN "Method and tool For the cold forging of internally profiled tubes". A b s t r a c t A method and tool for cold forging or cold hammering of internally profiled tubes, whereby a forging blank (2) is while rotated, forged by the action of a number of forging hammers (4), whereby the workpiece (2) as a result of material displacement is formed around a profiling mandrel (3). Before cold forging, the mandrel (3) is adjusted with its axial centre (c - c) to a position axially to the side of the forging blank s (2) axial centre (c' - c') at a distance equal to half the rolled billets extension during cold forging, and in the direction away from the forging hammers start position. The apparatus comprises an end socket (5) and a driver (10) between which both the workpiece (2) and mandrel (3) are arranged to be clamped. The end socket (5), which is positioned at the forging hammers (4) starting side, is arranged to include varying thicknesses of end posi- tioners (9) for adjusting the mandrel (3) position, and at the other end of the mandrel is a device for forcing the mandrel against the end socket (5). This spring device is active between a ram (14) and driver (10), which in turn is axially displaceable against the action of a pre-determined pressure.
394869
Forenade Fabriksverken
Smart & Biggar
LandOfFree
Method and tool for the cold forging of internally profiled... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and tool for the cold forging of internally profiled..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and tool for the cold forging of internally profiled... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1248398