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Method of Making a Metal Bellows Assembly Having an Intermediate Plate

  • US 20090188897A1
  • Filed: 10/15/2008
  • Published: 07/30/2009
  • Est. Priority Date: 10/31/2005
  • Status: Active Grant
First Claim
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1. ) A method for forming a bellows made up of a stack of a predetermined number of ring-convolutions and having an intermediate plate supported within said stack, said method comprising the steps of:

  • a) supplying a plurality of metal rings, each ring having a first outer diameter defining a first outer edge and a first inner diameter, defining a first inner edge;

    b) positioning a pair of said metal rings in contiguous relation to each other,c) welding said first inner edges of said pair of metal rings to each other to form a ring-convolution;

    d) repeating steps (a) through (c) until said predetermined number of ring-convolutions are made;

    e) supplying a support ring, said support ring having a second outer diameter that is equal to said first outer diameter of said metal rings and adapted to hold said intermediate plate;

    f) supplying an intermediate plate having a predetermined thickness and a third inside diameter that is less than said first inside diameter of said metal rings;

    g) welding said intermediate plate to said support ring;

    h) positioning said support ring between a pair of ring-convolutions in contiguous relation to each other;

    i) welding said second outer edge of said support ring to said first outer edges of said respective adjacent ring-convolutions to form a support plate convolution;

    j) positioning said ring-convolutions of (c) and said support plate convolution of step (i) in a prescribed stacked order in contiguous relation to each other; and

    k) welding all not-yet welded adjacent outside edges of said ring-convolutions and said support plate convolution to form said bellows.

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