Tool for locally forming a workpiece
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United States of America Patent
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N/A
Issued Date -
Jan 1, 2004
app pub date -
Jun 26, 2002
filing date -
Jun 26, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A forming or re-rounding machine has a pair of concentric inner and outer rings supported with a gap between the rings. The support of the rings provides for both axial and rotational movement. A can or shell having a section to be formed, or a damaged portion for re-rounding, is inserted into the gap. Hydraulic rams are mounted in a radial pattern into the outer edge of the inner ring and the inner edge of the outer ring, facing the gap. The inner and outer rings can be oriented so that the hydraulic rams in each ring can be directly opposed to the hydraulic rams in the opposing ring, or alternatively, can be offset from adjacent hydraulic rams in the opposing ring. In a vertically oriented embodiment, the forming or re-rounding machine has a pair of concentric rings suspended from a crane or I-beam support with a gap between the rings.
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