DIRECT ADDRESS LASER ABLATION

摘要

A system and method for selectively removing tire material from the bead portions of a cured tire to reduce one or more harmonics of at least one uniformity parameter are disclosed. According to aspects of the present disclosure, tire material is selectively removed using a plurality of direct address commands. The direct address commands specify ablation parameters for discrete ablation segments at specific angular locations around the bead of the tire. The direct address commands are generated by analyzing the desired ablation pattern for the bead of the tire. The ablation device can then be controlled to selectively remove tire material in discrete ablation segments at identified addresses pursuant to the direct address commands to achieve the desired ablation pattern on one or more tracks along the bead portion of the tire using a single pass of the ablation device.

主权项

1. A method for reducing one or more harmonics of at least one uniformity parameter in a cured tire, comprising:
receiving an ablation pattern for a bead of the tire, the ablation pattern defining a desired ablation depth relative to an angular location around the bead and calculated to correct for one or more harmonics of at least one uniformity parameter for the tire; identifying a plurality of addresses for the bead, each address being associated with a specific angular location on the bead of the tire; analyzing the ablation pattern to determine a plurality of direct address commands to achieve the ablation pattern, the plurality of direct address commands specifying ablation parameters for a plurality of discrete ablation segments at one or more addresses along the bead of the tire; each of the plurality of discrete ablation segments having similar ablation sensitivity characteristics; controlling the ablation device to selectively remove tire material from the bead in discrete ablation segments pursuant to the direct address commands to achieve the ablation pattern.