Component geometry and method for blowout resistant welds

Details Component geometry and method for blowout resistant welds Component geometry and method for blowout resistant welds

2006-06-15

2009-11-17

Bryant, David P (Department: 3726)

Metal working

Method of mechanical manufacture

Valve or choke making

C029S888400, C029S890126, C029S890129, C123S470000, C228S141100, C228S153000, C228S154000, C228S161000, C228S165000, C219S121630, C219S121640, C219S121860

Reexamination Certificate

active

07617605

ABSTRACT:
In a method for reducing “blow-out” of annular welds for attaching components in a fuel injector, a relief region is formed on radially-facing surfaces of the components. The relief region is adjacent to a press-fit region. The components are then pressed together, and a weld is made in the relief region. A sealed gap is thereby formed in the relief region between the weld and the press-fit region. The sealed gap provides for the expansion of trapped gases that could otherwise “blow out” the liquid weld bead.

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