Connecting element, method and apparatus for its production
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United States of America Patent
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Jan 31, 2023
Grant Date -
Apr 23, 2020
app pub date -
Oct 18, 2019
filing date -
Oct 19, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a method for producing a rod- or pipe-shaped connecting element (100, 100′) having an end face (106) from a semi-finished connecting element (102) made of metal, in particular of a drill or chisel insertion end which is secured in an axially movable manner in a chuck of a hammer drill, a semi-finished connecting element (102) is provided, characterized in that at least one radially movable forming body (206) guided in the recesses (204) of a die (202) for forming at least one longitudinal groove (122, 124) closed on both sides in the semi-finished connecting element (102) has a smaller longitudinal extension (LR) than a planned length (L) of the longitudinal groove (122, 124) and that the forming of the at least one longitudinal groove (122, 124) closed on both sides in the semi-finished connecting element (102) is performed by radially applying the at least one forming body (206) and by subsequently axially shifting the semi-finished connecting element (102) in a longitudinal die opening (214) of the die (202).
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