Stock material or miscellaneous articles – All metal or with adjacent metals – Having metal particles
Patent
1981-02-18
1983-07-19
Bell, Mark
Stock material or miscellaneous articles
All metal or with adjacent metals
Having metal particles
10 10R, 10 27R, 72104, 428592, 428610, B21H 304, B22F 324, B22F 506, B32B 514
Patent
active
043944213
ABSTRACT:
A method of thread rolling a cylindrical sintered P/M blank is provided comprising, forming a sintered cylindrical powder metal (P/M) blank of density ranging from about 75% to 92% of the actual density of said metal blank having a selected diameter larger than the final pitch diameter of a predetermined roll threaded product produced therefrom and not substantially exceeding the outside diameter of said predetermined roll threaded product. The P/M blank diameter selected is substantially inversely related to the density of the blank, the P/M diameter selected being correlated to produce a substantially full thread. The sintered P/M blank is then thread rolled using a threading die corresponding to the gage of the predetermined roll threaded product to be produced.
REFERENCES:
patent: 2447434 (1948-08-01), Schwarzkopf
patent: 2549939 (1951-04-01), Shaw et al.
patent: 2941288 (1960-06-01), Whitehouse
patent: 3668951 (1972-06-01), Talmadge
patent: 3782794 (1974-01-01), Chmura et al.
patent: 4026657 (1977-05-01), Chmura
Brodski, A. M.; "Small Thread Rolling Dies" in Machines & Tooling, vol. XLIII, Nailly 1972, pp. 54-57.
Chmura William J.
Slusarski Ronald S.
Bell Mark
Textron Inc.
LandOfFree
Thread forming of sintered porous metal shapes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Thread forming of sintered porous metal shapes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thread forming of sintered porous metal shapes will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-751739