Apparatus for automated peening of tenons connecting turbine buckets and cover plates

Apparatus for automated peening of tenons connecting turbine buckets and cover plates

An automatic machine for peening the tenons on bucket cover plates to secure the cover plates and adjacent buckets of a turbine wheel to one another is provided. The machine includes a fixture having stepped surfaces for locating the freely suspended fixture and peening tool relative to the bucket t...

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Hauptverfasser: Fischer, Todd, Fregoe, Jeffrey, Marcellus, David, Roberts, Dennis, VanNest, John
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Sprache:eng
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creator Fischer, Todd
Fregoe, Jeffrey
Marcellus, David
Roberts, Dennis
VanNest, John
description An automatic machine for peening the tenons on bucket cover plates to secure the cover plates and adjacent buckets of a turbine wheel to one another is provided. The machine includes a fixture having stepped surfaces for locating the freely suspended fixture and peening tool relative to the bucket tips and cover plates and clamping the tips and cover plates to the fixture surfaces. After peening a first tenon, the fixture and tool head are displaced relative to the fixed cover plate and bucket tip to register the tool with a second tenon. An actuator displaces the suspended system to compensate for the movement of the fixture and tool relative to the turbine wheel. A counterbalance is provided to accommodate fixtures of different weights when peening the tenons of covers in different turbine wheels.
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The machine includes a fixture having stepped surfaces for locating the freely suspended fixture and peening tool relative to the bucket tips and cover plates and clamping the tips and cover plates to the fixture surfaces. After peening a first tenon, the fixture and tool head are displaced relative to the fixed cover plate and bucket tip to register the tool with a second tenon. An actuator displaces the suspended system to compensate for the movement of the fixture and tool relative to the turbine wheel. A counterbalance is provided to accommodate fixtures of different weights when peening the tenons of covers in different turbine wheels.</abstract><oa>free_for_read</oa></addata></record>
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title Apparatus for automated peening of tenons connecting turbine buckets and cover plates
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