Punching device making large rectangular holes in rectangular tubing and method thereof
Number of patents in Portfolio can not be more than 2000
United States of America
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Mar 19, 2024
Grant Date -
N/A
app pub date -
Dec 29, 2020
filing date -
Dec 29, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
A rectangular tubing, rectangular hole punching device includes a two-sided die carried by a mandrel upon which a rectangular tubing workpiece is sleeved. The two-sided die makes possible a punched rectangular hole having a width extending substantially from one interior lateral side wall of the workpiece adjacent the side of the workpiece being punched to the opposing interior side wall of the workpiece adjacent the side of the workpiece being punched, and includes a pair of tool steel die pieces that are longitudinally spaced from each other. The portions of lateral side walls corresponding to the position of the two sided die within the workpiece are supported against deformation from punching by applying a high compressive force to the portions of the laterally spaced side walls of the workpiece that are in correspondence with the position of the two-sided die, during the punching operation.
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