DASH 47R is a cementitious composite initially formulated for use as an autoclave molding/tooling material. A unique matrix and aggregate system imparts unusually high strength and excellent vacuum integrity to DASH 47 at moderately high temperatures even though DASH 47 molds are cast at ambient temperature over commonly used pattern materials. This paper reviews the formulation and properties of DASH 47, and outlines its fabrication method and curing schedule for thin-shelled autoclave tools. In addition, examples of other molding applications for DASH 47 are shown in this paper.
A Cementitious Tooling/Molding Material-Room Temperature Castable, High Temperature Capable
Sae Technical Papers
General Aviation Aircraft Meeting and Exposition ; 1985
1985-04-01
Conference paper
English
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