Metal working – Method of mechanical manufacture – Structural member making
Patent
1998-05-22
2000-04-18
Cuda, I
Metal working
Method of mechanical manufacture
Structural member making
29557, 280279, B23P 1512
Patent
active
060499826
ABSTRACT:
An integrate forming method for a front aluminum alloy fork of a bicycle, wherein, an aluminum alloy found round pipe having two elliptical pipe holes therein is selected as a blank and is formed an embryonic form of a pipe casting of the pipe head of the front fork by a milling process, then die cores are placed in the pipe casting then by using a sequential novel process including diameter reducing and tapering of the pipe head, a first stage forming, tapering of the branch pipes, a second stage forming, and bending forging etc., the front aluminum alloy fork can be integrately formed, in this way, the pipe head and the two branch pipes having extremely large variation of shape can be integrately formed, and the disadvantage of stress concentration in the conventional connecting and fixing technique can be gotten rid of, and good appearance as well as strength of the front fork can be improved by such a process.
REFERENCES:
patent: 2739047 (1956-03-01), Sanz
patent: 2747889 (1956-05-01), Mueller
patent: 3927450 (1975-12-01), Sommer et al.
patent: 4305269 (1981-12-01), Kimura
patent: 4786219 (1988-11-01), Oberlin et al.
patent: 4828285 (1989-05-01), Foret et al.
patent: 4830390 (1989-05-01), Yamaki et al.
patent: 4907735 (1990-03-01), Ushioda et al.
patent: 5011172 (1991-04-01), Bellanca et al.
patent: 5181732 (1993-01-01), Bezin et al.
patent: 5273301 (1993-12-01), Klein
patent: 5412860 (1995-05-01), Miyauchi et al.
patent: 5692764 (1997-12-01), Klein et al.
patent: 5762352 (1998-06-01), Lee
Milling High-Strength Alloys, May 1961.
Cuda I
Nguyen Trinh T.
LandOfFree
Integrated molding method for the front fork of a bicycle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Integrated molding method for the front fork of a bicycle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated molding method for the front fork of a bicycle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2327358