Tool and method to create an accurate cast of the internal...

B - Operations – Transporting – 29 – C

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B29C 39/02 (2006.01) B29C 33/00 (2006.01) B29C 33/44 (2006.01) B29C 39/24 (2006.01) B29C 39/34 (2006.01) B29C 39/36 (2006.01) G01B 5/20 (2006.01)

Patent

CA 2486070

A molding tool (10) has a body (20) that can be inserted into a cavity (62) of a component (12) for introducing molding material (72) to form a mold of one or more internal surfaces (60) defining the cavity (62). The molding material (72) is at least partially cured with the tool (10) in place so that the mold (80) and tool (10) are removed from the cavity (62) as a single unit. The tool (10) includes a passage (34) for introducing the molding material (72) into the cavity (62). A pressure device, such as a plunger (50), may be used to force the molding material (72) through the passage (34) and into the cavity (62). The tool (10) also serves to support the mold (80) on a fixture or other structure used to analyze the mold (80) to verify characteristics of the form, such as, for example, an optical comparator.

Un outil (10) de moulage comprend un corps (20) qui peut être inséré dans une cavité (62) d'un constituant (12) prévu pour introduire un matériau (72) de moulage afin de former un moule dans lequel une ou plusieurs surfaces internes (60) définissent la cavité (62). Le matériau (72) de moulage est au moins partiellement durci avec l'outil (10) en place, de telle sorte que le moule (80) et l'outil (10) soient sortis de la cavité sous forme d'une seule unité. L'outil (10) comprend un passage (34) qui permet d'introduire le matériau (72) de moulage dans la cavité (62). Un dispositif de pression, tel qu'un piston (50) peut être utilisé pour pousser le matériau (72) de moulage dans le passage (34) et ensuite dans la cavité (62). L'outil (10) sert également à supporter le moule (80) sur un appareil ou sur une autre structure qu'on utilise pour analyser le moule (80) afin de vérifier les caractéristiques de la forme, et qui peut être par exemple, un comparateur optique.

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