Robotically-controlled laser cladding process for repair of worn and/or damaged railway structures
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United States of America Patent
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Sep 8, 2020
Grant Date -
Aug 17, 2017
app pub date -
Feb 13, 2017
filing date -
Feb 12, 2016
priority date (Note) -
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Abstract
An improved process for repair of worn and damaged surfaces of railway structures such as frog and diamond transition surfaces, rail head surfaces and wheels. A worn or damaged surface is prepared using a robotically-controlled laser to melt or gouge away metal using controlled laser energy and air pressure to remove existing worn or damaged surfaces. The process further utilizes laser cladding, laser weld overlaying, or laser additive manufacturing, of formulated powder, wire or stick welding material to worn surfaces that have been prepared for material build-up to original dimensions and similar metallurgical properties.
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