Plastic and nonmetallic article shaping or treating: processes – With step of making mold or mold shaping – per se – Utilizing surface to be reproduced as an impression pattern
Patent
1987-03-03
1989-05-30
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
With step of making mold or mold shaping, per se
Utilizing surface to be reproduced as an impression pattern
264220, 264255, 264256, 264257, 264275, 264338, 425 3, 425DIG33, 249 3, 249 91, 249115, 249134, B29C 3912, B29C 3358, B29C 6718
Patent
active
048349291
ABSTRACT:
A method of making precision low cost molds by applying a plurality of layers of material to a pattern. The method includes providing a pattern of the part to be formed; orienting the pattern on a surface plate in a molding dam; applying a release coating to the surfaces; applying a thin resin layer to form the mold surface; applying a layer of fiber reinforced tooling resin to the thin resin layer; applying an epoxy-dry plaster bonding layer to the tooling resin; inserting a reinforcement framework into the dam; and applying bulk casting plaster to complete the body of the mold.
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Dehoff Chris A.
Dehoff Hugh T.
Dehoff William A.
3D Manufacturing, Inc.
Durkin II Jeremiah F.
Palermo Robert F.
Silbaugh Jan H.
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