Joining method and joining apparatus
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United States of America Patent
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May 31, 2022
Grant Date -
Oct 15, 2020
app pub date -
Jun 29, 2020
filing date -
Apr 10, 2017
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A joining method is a method of joining a plate set composed by a plurality of stacked plate members including a first plate member and a second plate member by using a tapping screw. When the tapping screw is advanced into the plate set while the tapping screw is rotated in a state of applying a pressure onto the plate set so as to form through-holes in the first plate member and the second plate member, a first pressure applied onto the tapping screw is reduced down to a second pressure at the time when the tapping screw penetrates the first plate member.
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