IP Library Granted Patent US 7,404,252
Granted Patent B2
US 7,404,252 · App. 10/853,425 · Granted Jul 29, 2008

Method for fastening two coplanar edges without a weld

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Quick Facts
Patent No.
US 7,404,252
App. No.
10/853,425
Granted
Jul 29, 2008
Kind
B2
Abstract

A method and apparatus for fastening two substantially coplanar edges without a weld is disclosed. The method includes: configuring a dovetail feature on a first edge; configuring a complementary dovetail feature receptacle on a second edge to receive the dovetail feature therein; disposing the dovetail feature within the complementary dovetail receptacle; and swaging an interface defined between the dovetail feature in said first edge and said complementary dovetail feature in the second edge to swage mating edges defining the dovetail feature and the dovetail receptacle at at least six swage contact points. In one embodiment the swaging is with a hollow circle punch.

Claims (24)

1. A method for fastening two substantially coplanar edges without a weld, the method comprising:

configuring a dovetail feature on a first edge;

configuring a complementary dovetail feature receptacle on a second edge to receive said dovetail feature therein;

disposing said dovetail feature within said complementary dovetail receptacle; and

swaging an interface defined between said dovetail feature in said first edge and said complementary dovetail feature in said second edge to swage mating edges defining said dovetail and said dovetail feature receptacle at at least six swage contact points,

wherein said first and second edges include edges of sides defining one of a tail stock bezel and an air filler book assembly.

2. The method of claim 1 , wherein said swaging is with a hollow circle punch.

3. The method of claim 1 , wherein configuring said dovetail feature and complementary dovetail receptacle includes a three or more sided generously radiused dovetail.

4. The method of claim 1 , wherein configuring said dovetail feature and complementary dovetail receptacle includes an ovalized dovetail.

5. The method of claim 1 , wherein said interface between said dovetail feature and complementary dovetail receptacle includes a space therebetween before said swaging.

6. The method of claim 1 , wherein first edge and said second edge are edges from one of a same substrate or different substrates to be joined.

7. A method for fastening two substantially coplanar edges without a weld, the method comprising:

configuring a dovetail feature on a first edge;

configuring a complementary dovetail feature receptacle on a second edge to receive said dovetail feature therein;

disposing said dovetail feature within said complementary dovetail receptacle; and

swaging an interface defined between said dovetail feature in said first edge and said complementary dovetail feature in said second edge to swage mating edges defining said dovetail and said dovetail feature receptacle at at least six swage contact points,

wherein first edge and said second edge are edges from a same substrate.

8. A method for fastening two substantially coplanar edges without a weld, the method comprising:

configuring a dovetail feature on a first edge;

configuring a complementary dovetail feature receptacle on a second edge to receive said dovetail feature therein;

disposing said dovetail feature within said complementary dovetail receptacle; and

swaging an interface defined between said dovetail feature in said first edge and said complementary dovetail feature in said second edge to swage mating edges defining said dovetail and said dovetail feature receptacle at at least six swage contact points,

wherein said swaging is with a hollow circle punch which distributes a load experienced by a resulting mechanical joint interface more uniformly relative to cross pattern swaging, and

wherein said swaged interface eliminates at least one of a weld pad area and touch-up associated with a resulting mechanical joint interface between said first and second edges.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 10, 2014
From: INTERNATIONAL BUSINESS MACHINES CORPORATION
To: LENOVO INTERNATIONAL LIMITED
Reel/Frame 034194/0291 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 25, 2004
From: BARRINGER, DENNIS R.; NOTOHARDJONO, BUDY D.; ROGERS, JUSTIN C.; TOFFLER, HAROLD M.
To: INTERNATIONAL BUSINESS MACHINES CORPORATION
Reel/Frame 015381/0377 →