Casting a shaped aluminum part on a work piece
AssigneeGruber & Kaja
InventorFranz Bonitz
Life of this patent
Estimating the term…
Abstract
An aluminum or aluminum alloy melt is cast and shaped directly on the surface of a work piece and permitted to contact the surface without exerting pressure on the melt for at least a portion of the time that a temperature of 500.degree.C to 700.degree.C is maintained at the interface between the melt and the surface until an intermediate layer of an alloy of aluminum and chromium or nickel contained in the work piece has been produced at the interface, and the melt is then permitted to solidify as a shaped part on the work piece.
Claims13
A process for casting a shaped part of aluminum or an aluminum alloy onto a surface of a work piece of a metal containing chromium or nickel, comprising the steps of
- 1. casting and shaping an aluminum or aluminum alloy melt directly on the surface of the work piece to produce an interface between the melt and the surface, and permitting the melt to contact the surface without exerting pressure on the melt in the direction of the surface,
- 2. maintaining a temperature in the range of about 500.degree.C to about 700.degree.C at the interface until an intermediate layer of an alloy of aluminum and chromium or nickel has been produced at the interface,
- 3. thermally insulating the surface of the work piece to maintain the temperature,
- 4. then permitting the melt to solidify as said shaped part under pressure.
Dependencies are inferred from the claim text.