| 摘要 |
<p>Process for preweakening an automotive trim cover for an air bag deployment opening, wherein a laser generator (112) directs a laser beam (114) at the reverse side of a substrate panel (116) underlying a cover layer (118) and intervening foam layer (120) provided in a skin and foam construction, the power of the laser beam (114) is controllably varied so as to completely penetrate the substrate panel (116) and foam layer (120), but only partially penetrate the inside of the cover (118) creating the preweakening by a laser scoring, and wherein a deployment door panel (122) is thus formed at the same time, perfectly aligned with the preweakening pattern of the cover (118).</p> |
