Application of stop-off material, particularly for use in diffusion bonding and superplastic forming
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United States of America Patent
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Aug 22, 2000
Issued Date -
N/A
app pub date -
Dec 17, 1997
filing date -
Dec 18, 1996
priority date (Note) -
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Abstract
A method of applying a pattern of stop-off material to a sheet is described, the pattern being stored in a computer memory; the method comprises: (a) placing the sheet (22) on a table (12) that is traversable by a printing head (14) capable of applying jets of fluid from a reservoir onto the underlying sheet, (b) supplying a suspension of stop-off material to the fluid jet reservoir and (c) traversing the printer head (14) with respect to the sheet and (d) so controlling the head that it applies jets of stop-off material to the sheet to form a pattern of stop-off material in accordance with the pattern stored in the said memory. The method finds particular use in applying stop-off material in combined diffusion bonding/superplastic forming fabrication techniques.
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