Patent ID: 8939120
Filing Date: 2015-01-27
Classification: B22F,B30B,F23Q

Abstract:
1. Apparatus comprising a combustion driven compaction press having a combustion chamber, a piston in and extending from the chamber, a die connected to an end of the piston remote from the chamber, gas and air inlets connected to the chamber for filling and pressurizing the chamber with a gas and air mixture and moving the piston and die to initially compress a near net shape part, a laser source spaced from the chamber for projecting a laser beam, an optical device optically aligned with the laser source for focusing the laser beam and directing the laser beam toward the chamber, a window in the chamber opposite the piston for admitting the focused and directed laser beam into the chamber for igniting the gas and air mixture and initiating combustion of the gas and air mixture in the chamber and driving the piston and die outward to compact the part to near net shape, wherein the optical device comprises a lens for focusing the laser beam to a focal point within the chamber, and wherein the lens focuses the focal point in a center of the chamber.