Process for forming combustion turbine components by...

B - Operations – Transporting – 23 – K

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B23K 20/16 (2006.01) B23H 9/10 (2006.01) B23K 20/24 (2006.01) B23K 35/00 (2006.01) B23P 15/04 (2006.01)

Patent

CA 2276047

Processes for constructing complex turbine structures by the assembly of less complex sub-structures. The component sub-structures are bonded together at opposed mating surfaces by transient liquid bond phase techniques. The sub- structure mating surfaces are machined prior to application of the bonding material to remove oxide from the mating surfaces and ensure dimensional tolerances. Bonding material is applied to the mating surfaces by sputter deposition. Masks can be applied to the mating surfaces prior to application of the bond material so as to selectively apply bond material at only predetermined locations on the mating surface, thus eliminating excessive use of bond material for bonding the component sub-structures.

La présente invention concerne des procédés permettant de construire des structures de turbines complexes par assemblage de sous-structures moins complexes. Les sous-structures de composant sont fixées aux surfaces appariées opposées par des techniques faisant appel à une phase de liaison liquide transitoire. Les surfaces appariées d'une sous-structure sont usinées avant l'application du matériau de liaison de manière à retirer l'oxyde desdites surfaces appariées et à garantir les tolérances dimensionnelles. Un matériau de liaison est appliqué sur les surfaces appariées par pulvérisation. On peut également appliquer des masques sur les surfaces appariées avant l'application du matériau de liaison, de manière à appliquer ledit matériau de liaison, de manière sélective, uniquement à des emplacements prédéterminés des surfaces appariées, éliminant ainsi toute utilisation excessive du matériau de liaison permettant de relier les sous-structures de composant.

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