Metal founding – Process – Shaping a forming surface
Patent
1982-04-12
1984-12-11
Lin, Kuang Y.
Metal founding
Process
Shaping a forming surface
164361, 164516, B22D 3304
Patent
active
044872461
ABSTRACT:
A method and a support structure for use in casting metal articles which define at least one internal passage and wherein the support structure is associated with a core or cores employed during the casting operation. In that operation, the cores are confined within a disposable pattern, and a ceramic mold is formed around the pattern. When the pattern material is removed, a mold cavity is provided with the core positioned in the cavity to form the desired opening in the cast article. The support structure for the core comprises a member positioned between the core surface and the opposing mold surface. This member is encompassed by the pattern material when the pattern material is formed around the core. During the subsequent removal of the pattern material and also during curing of the ceramic mold, the support member serves to hold the core in place so that the dimension of the casting wall surrounding the internal passage can be precisely maintained. The support is of a material which will be diffused into the casting alloy so that the casting properties will not be adversely affected. Furthermore, no significant surface finishing operations are required for the casting.
REFERENCES:
patent: 1089001 (1914-03-01), Lindberg
patent: 1657444 (1928-01-01), Prince
patent: 1867862 (1932-07-01), Moore
patent: 2049886 (1936-08-01), Angell et al.
patent: 2096679 (1937-10-01), Gibson
patent: 2688781 (1954-09-01), Fahlberg et al.
patent: 2985930 (1961-05-01), Hohlfelder
patent: 3401738 (1968-09-01), Parille
patent: 3596703 (1971-08-01), Bishop et al.
patent: 3659645 (1972-05-01), Rose
patent: 3662816 (1972-05-01), Bishop et al.
Howmet Turbine Components Corporation
Lin Kuang Y.
LandOfFree
System for locating cores in casting molds does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for locating cores in casting molds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for locating cores in casting molds will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1458478