PISTON MADE USING ADDITIVE MANUFACTURING TECHNIQUES
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United States of America Patent
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Apr 4, 2014
filing date -
Apr 5, 2013
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Abstract
A monobloc piston body for an internal combustion engine is provided. The piston body includes a first piece which includes a pair of skirt portions and a pair of pin bosses and a second piece which includes a crown portion with an upper combustion surface and an at least partially enclosed oil gallery. The first and second pieces are joined together at a joint that is located on a side of the oil gallery opposite of the upper combustion surface. The firs piece is made through casting or forging, and the second piece is made through an additive manufacturing process, such as direct metal laser sintering.
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