WIRE ELECTRICAL DISCHARGE MACHINING APPARATUS AND WIRE ELECTRICAL DISCHARGE MACHINING METHOD
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United States of America Patent
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Issued Date -
Jun 27, 2024
app pub date -
May 7, 2021
filing date -
May 7, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
A control unit controls a holding device so that a cutting feed stage is driven when cutting is started to move upward a workpiece fixing plate on which a workpiece is placed and fixed and a pair of machining fluid flow straightening plates relative to a pair of machining fluid escape prevention plates so as to bring the workpiece fixing plate and the pair of machining fluid flow straightening plates closer to a plurality of cutting wire portions, and a workpiece retainer is held in an initial cutting position until the workpiece reaches a first position by the upward movement, and controls the holding device to release the hold of the workpiece retainer after the workpiece reaches the first position.
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