METHOD AND DEVICE FOR PRODUCING A FOAMABLE, STRIP-LIKE PRESSED POWDER METAL SHEET BLANK BY MEANS OF COLD ROLLING, AND PRESSED POWDER METAL SHEET BLANK
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United States of America
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Issued Date -
Dec 5, 2024
app pub date -
Oct 6, 2022
filing date -
Oct 6, 2022
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Abstract
A method and a device for producing a foamable, strip-like pressed powder metal sheet blank, and to such a pressed powder metal sheet blank. Foamable pressed powder metal sheet blanks are commonly produced by means of hot pressing. However, this costs energy and can adversely affect the quality of the metal foam produced from the pressed powder metal sheet blank due to the gasification of the foaming agent. Therefore, the pressed powder metal sheet blank is produced from a powder mixture containing at least one metal powder and a foaming agent powder by means of cold rolling. In this way, a wider range of foaming agents can be used and the amount of energy required to produce the pressed powder metal sheet blank is reduced.
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