APPARATUS AND METHOD FOR PREFERENTIAL FORMATION OF WELD JOINT
First Claim
1. A method for reducing micro-cracks induced by an electron welding beam, said method comprising:
- providing a first piece having a surface facing the welding beam;
abutting a second piece to the first piece to form a weld joint, the second piece including a flange extending over the surface,wherein the first piece and the second piece form a work-piece that includes a sacrificial portion and a working portion separated from the sacrificial portion by a post-processing zone, andwherein the second piece receives the electron welding beam with welding parameters that cause a first nailhead to form exclusively in the first piece.
4 Assignments
0 Petitions
Accused Products
Abstract
A weld set-up and weld process are provided that alleviate micro-cracking as between a pair of welded pieces. The weld set-up is provided in which the weld pieces are configured to cause micro-cracking to occur in a portion of the welded pieces that is then removed by post-processing machining techniques. This weld set-up includes a primary weld piece and a secondary weld piece with a flange portion that extends over the primary weld piece. When used in conjunction with electron beam welding, application of the weld beam onto the secondary weld piece causes the formation of a preferential nailhead that is formed exclusively in the first weld piece.
15 Citations
20 Claims
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1. A method for reducing micro-cracks induced by an electron welding beam, said method comprising:
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providing a first piece having a surface facing the welding beam; abutting a second piece to the first piece to form a weld joint, the second piece including a flange extending over the surface, wherein the first piece and the second piece form a work-piece that includes a sacrificial portion and a working portion separated from the sacrificial portion by a post-processing zone, and wherein the second piece receives the electron welding beam with welding parameters that cause a first nailhead to form exclusively in the first piece. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus prepared for weld by an electron welding beam, said apparatus comprising:
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a first piece having a surface facing the electron welding beam; and a second piece abutting the first piece to form a weld joint, the second piece including a flange extending away from the weld joint over the surface of the first piece, wherein the first piece and the second piece form a work-piece that includes a sacrificial portion and a working portion separated from the sacrificial portion by a post-processing portion, and wherein the sacrificial portion includes the flange. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification