Method and compositions for laser imprinting AND articles imprinted using such methods and compositions
AssigneeOtis Elevator Company
InventorsDaniel J. Budnik, David A. Condit
Life of this patent
Estimating the term…
Abstract
A method of imprinting a workpiece includes lasing the workpiece to create a depression or other opening, depositing a laser-fusible polymer material into the depression, and then lasing the material so as to fuse the material into the depression. Preferably, the laser-fusible polymer material is fusible in the near infrared spectrum. An alternate method for imprinting using colored powder paints includes an additional step of heating the workpiece to ensure thermosetting of the colored powder paint. Laser fusible materials having particular physical characteristics and compositions may be used to facilitate the process.
Claims10
A method of imprinting a workpiece, comprising:
- providing a workpiece;
- lasing the workpiece to create a depression;
- depositing a laser-fusible material into the depression;
- and then
- lasing the material so as to fix the material into the depression.
A method of imprinting a workpiece, comprising:
- providing a workpiece;
- lasing the workpiece to create a channel;
- disposing a laser-fusible paint into the channel;
- lasing the paint so as to fix the paint into the channel, and then removing any excess paint from the workpiece.
A method of imprinting a workpiece, comprising:
- providing a workpiece;
- lasing the workpiece to create a depression;
- depositing a powder material into the depression;
- lasing the powder material so as to fix the powder material into the depression;
- and
- heating the workpiece to a temperature sufficient to re-melt, gel and cure the powder material fixed into the depression.
Dependencies are inferred from the claim text.