| 摘要 |
In a vehicular exhaust system muffler, a mechanical tube and end panel joint. A bead extends about the tube. The bead is integral to the tube, annular, and radially outwardly extending. An annular flange extends along the tube and abuts the bead. The flange is integral to the end panel. A plurality of integral, interlocking protrusions are simultaneously deformed into the tube and flange. The bead, flange and protrusions totally mechanically join the tube and end panel.
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