Metal deforming – By relatively movable offset tool-faces – Multi-point tool-couple
Patent
1999-04-02
1999-12-14
Jones, David
Metal deforming
By relatively movable offset tool-faces
Multi-point tool-couple
72414, B21D 1302
Patent
active
060002700
ABSTRACT:
A method of making a collimator having a generally honeycomb shape made from sheets of thin metal. The sheets are deformed using a progressive form die assembly into what may be termed truncated pyramids alternately inverted with top and bottom major flats connected by slant walls. Successive sheets are joined together by displacing them relative to each other so that the top major flats of the truncated pyramids of one sheet contact the bottom major flats of the succeeding sheet. Advantageously, the edges of the sheet are tapered to a pointed edge by the progressive form die assembly, which may also form roughened surfaces on the sheets by swedging. Edges of the slant walls which connect top and bottom major flats of the truncated pyramid shape are provided with a dual taper, and the edges of the major flats are provided with a single taper. When successive sheets are joined, the top and bottom major flats of successive sheets form a dual tapered edge from the single tapered edges on the flats of each sheet. Thus, the completed collimator has leading edges, all of which are tapered to a pointed edge. As a result, the rate of growth of metallic particles beyond the borders of the collimator cell walls is decreased compared to prior art designs having flat edges. The useful life of the collimator is, therefore, drastically increased, and the production downtime for the manufacturing process is reduced.
REFERENCES:
patent: 3430476 (1969-03-01), Duda
patent: 3936340 (1976-02-01), Muehllehner
patent: 3943366 (1976-03-01), Platz et al.
patent: 3971243 (1976-07-01), Jones
patent: 4008591 (1977-02-01), Vos et al.
patent: 4081687 (1978-03-01), York et al.
patent: 4450706 (1984-05-01), Engelmohr
patent: 4635462 (1987-01-01), Bald
patent: 4830723 (1989-05-01), Galvagni et al.
patent: 5223108 (1993-06-01), Hurwitt
patent: 5302218 (1994-04-01), Shirai et al.
patent: 5330628 (1994-07-01), Demaray et al.
patent: 5544771 (1996-08-01), Lee et al.
Jones David
SJM Engineering, Inc.
LandOfFree
Collimator having tapered edges and method of making the same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Collimator having tapered edges and method of making the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Collimator having tapered edges and method of making the same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-853846