Pre-process stress loading components for post-process warp control

• Main Authors: ALPAY MEHMET E, KOSMOWSKI MARK T
• Format: Patent
• Language: English
• Published: 11.06.2013
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HAND TOOLS; MACHINE TOOLS; MANIPULATORS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; PLASMA TECHNIQUE; PORTABLE POWER-DRIVEN TOOLS; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS; SOLDERING OR UNSOLDERING; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

A process and apparatus neutralizes a warp effect resulting from a build up of micro strains caused by machining a part with a long wavelength laser. The part to be machined is pre-stressed in an opposite direction of a warp stress due to machining using a fixture for holding the part without yielding any other features in the part. The part is machined while held in the pre-stressed position in the fixture.