B - Operations – Transporting – 21 – K
Patent
B - Operations, Transporting
21
K
26/174
B21K 1/42 (2006.01)
Patent
CA 1228223
P-336 DIE AND METHOD FOR SPLINING THIN-WALL POWER TRANSMITTING MEMBERS ABSTRACT An improved die (20) and method for splining a thin-wall sleeve (22) of a power transmitting member by meshing die teeth (32) and teeth (28) of a toothed mandrel (26) on which the sleeve is mounted between the meshing teeth. The die (20) is preferably em- bodied by an elongated die rack and includes a toothed forming face (30) having a plurality of leading tooth groups (32a,32b) of a progressively changing height from one tooth to the next tooth of the same group. Each of the tooth groups has a length for splining an arcuate segment of the sleeve of no more than ninety degrees and has an average tooth height that is approximately equal to the average tooth height of each other leading tooth group. A stepped tooth group (32c) and a trailing tooth group (32d) of full teeth complete the thin-wall splining after the initial partial splining performed by the leading tooth groups. In the pre- ferred construction, there are three leading tooth groups (32a) each of which has teeth of a precedes sively increasing height and there are three leading tooth groups (32b) each of which has teeth of a progressively decreasing height. Between the leading tooth groups and the stepped tooth group which precedes the trailing tooth group, the die rack (20) has a sizing recess (74) of a length that permits the trail- ing tooth group to commence the full splining in a manner that-eliminates any out of roundness of the splined sleeve.
446217
Anderson-Cook Inc.
Smart & Biggar
LandOfFree
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