FIBER PLACEMENT HEAD WITH SECONDARY COMPACTION ARRANGEMENT
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United States of America Patent
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Issued Date -
Feb 22, 2018
app pub date -
Jun 30, 2017
filing date -
Aug 19, 2016
priority date (Note) -
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Abstract
A fiber placement head with secondary compaction arrangement is provided. The fiber placement head includes a frame, at least one heating module mounted to the frame, and a primary compaction roller mounted to the frame. The secondary compaction arrangement includes a secondary idle compacting roller, operating after the primary compacting roller, performing a post retracing on the tows just applied by the primary compaction roller. The secondary compaction arrangement may also include an additional (secondary) heating module interposed between the primary and secondary compaction rollers. Re-heating and re-pressing the tows addresses those tows which are insufficiently bonded to a working surface due to the tow being insufficiently tacky.
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