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US 7,363,796 B2Granted
Cold form nozzle for laser processing
AssigneeLaser Mechanisms, Inc.
InventorWilliam G. Fredrick, Jr.
Life of this patent
Estimating the term…
Abstract
A method for cold-forming a nozzle for a laser includes placing a slug or tube of oxygen-free copper into a die. A mandrel is forced into the copper slug or tube. The resultant compressive force causes the copper to cold flow around the mandrel and the die to define an inner shape and an outer dimension of the part.
Claims19
A method of cold-forming a nozzle for a laser comprising:
- placing a slug of oxygen-free copper into a die;
- forcing a shaped mandrel with an ultra-smooth surface into said slug causing said slug to be extruded around said mandrel;
- and
- forming the nozzle with a high interior surface reflectivity to CO2 and YAG laser wavelengths, specifically wherein the nozzle has an interior surface reflectivity of greater than 97.5% to Co2 and YAG laser wavelengths.
1 more element
A method of forming a nozzle for a laser comprising:
- placing a material into a die wherein the material is selected from the group consisting of oxygen-free copper, silver-bearing copper, and zirconium copper;
- directing a shaped mandrel with an ultra-smooth surface into said material causing said material to be extruded around said mandrel;
- applying an outward radial compressive from said shaped mandrel onto said material thereby defining an inner dimension of the nozzle;
- and
- forming the nozzle with an internal surface finish of at or near 0.1 micrometer and wherein the nozzle yields an interior surface reflectivity of greater than 97.5% to CO2 and YAG laser wavelengths.
2 more elements
A method of making a laser nozzle comprising:
- placing a slug of oxygen-free copper into a die;
- forcing a shaped mandrel into said slug causing said slug to be cold-formed around said mandrel;
- and
- forming the laser nozzle with an ultra-smooth internal surface wherein the laser nozzle has a reflectivity to CO2 and YAG laser wavelengths of at or near 99.8%.
1 more element
Dependencies are inferred from the claim text.