Method of producing a cam shaft

Details Method of producing a cam shaft Method of producing a cam shaft

1990-08-30

1991-04-16

Goldberg, Howard N.

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

294211, 29523, 74567, B23P 1500

Patent

active

050071653

ABSTRACT:
A method of producing a cam shaft or a similar member that has a core pipe upon which are secured, via expansion of the core pipe, components that are spaced from one another and have a precribed position on the core pipe, with the expansion of the core pipe being effected by introducing a hydraulic fluid into the core pipe. The surface of the components that are secured on the core pipe and are made of a ductile spheroidal graphite iron or sintered material, are subjected to a mechanical abrasion and are melted via a controlled laser beam in such a way as to first slightly reduce the adhesive pressure betewwn the components and the core pipe as a consequence of the melting of the surface layer, and subsequently, after hardening of the melted layer and due to temperature equalization in the components and the core pipe, to increase the adhesive pressure to a higher value. The melting results in a ledeburitic structure having an adequate depth.

REFERENCES:
patent: 4597365 (1982-07-01), Madaffer
patent: 4708029 (1987-11-01), Vrano
patent: 4858295 (1989-08-01), Hartnett et al.
patent: 4875270 (1989-10-01), Kryps et al.
patent: 4880477 (1989-11-01), Hayes et al.
patent: 4882825 (1989-11-01), Nakamura
patent: 4905538 (1990-03-01), Watanabe et al.
patent: 4922785 (1990-05-01), Arnold et al.

Affiliated with

Also associated with

Rating

Method of producing a cam shaft 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 of producing a cam shaft, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of producing a cam shaft will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-412767