Uniformity correction by ablation at different track locations along a tire bead
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United States of America Patent
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Jun 12, 2018
Issued Date -
Jun 11, 2015
app pub date -
Dec 23, 2014
filing date -
Jun 30, 2009
priority date (Note) -
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Abstract
A system and method for reducing the magnitude of one or more harmonica of one or more uniformity parameters in a cured tire involves selective removal of tire material at one or more track/area locations along first and second bead profiles. Selective removal may occur via ablation at the bead seat, low flange and/or high flange zones to correct for a selected number of harmonic of such parameters as radial, lateral and tangential force variation. Ablation pattern are calculated and implemented on first and second tire beads to achieve desired levels of force reduction at selected angular locations (within the expanse from 0-360 degrees along each tire bead). Ablation patterns may be calculated for implementation at fixed or varied tire rotational speeds and/or fixed or varied levels of laser power.
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