Fabricated liner article and method

Claim 1

A method of fabricating a panel for use in a gas turbine engine, comprising the steps of: (a) providing a panel of sheet metal, said panel including first and second oppositely facing surfaces and opposing leading and trailing edges aligned substantially perpendicularly to a longitudinal centerline extending between said leading and trailing edges; (b) perforating said panel to provide a plurality of holes, said plurality of holes extending through said first and second surfaces and being aligned substantially parallel to and spaced from said trailing edge of said panel; (c) forming a shoulder in said panel extending from said first surface of said panel, said shoulder comprising substantially abutting, transversely extending sections of said panel, and having an apex being substantially parallel to said trailing edge of said panel, aligned along the centers of said holes; and (d) bending an outer portion of said shoulder into a lip extending substantially perpendicularly from a base portion of said shoulder.

Claim 2

A method of fabricating a panel for use in a gas turbine engine, comprising the steps of: (a) providing a panel of sheet metal, said panel including first and second oppositely facing surfaces and opposing leading and trailing edges aligned substantially perpendicularly to a longitudinal centerline extending between said leading and trailing edges; (b) perforating said panel to provide a plurality of holes, said plurality of holes extending through said first and second surfaces and being aligned substantially parallel to and spaced from said trailing edge of said panel; (c) forming a shoulder in said panel extending from said first surface of said panel, said shoulder comprising substantially abutting, transversely extending sections of said panel, and having an apex being substantially parallel to said trailing edge of said panel, aligned along the centers of said holes; and (d) bending an outer portion of said shoulder into a lip extending substantially perpendicularly from a base portion of said shoulder.

Claim 13

A method of fabricating a sheet metal combustor liner panel which when joined with a plurality of other panels defines a liner for a combustor, comprising: (a) providing a generally rectangular panel of sheet metal, said panel including leading and trailing edges aligned substantially perpendicularly to a longitudinal centerline of said panel, and including two side edges aligned substantially parallel to said longitudinal centerline; (b) perforating said panel to provide a plurality of elongated holes aligned parallel to and spaced from said trailing edge, a major axis of each of said holes being aligned parallel to said longitudinal centerline; (c) forming said panel into an arc about said longitudinal centerline, said arc having a radius equal in magnitude to a corresponding radius of said liner for said combustor; (d) forming a section of said panel adjacent said leading edge into a generally semicircular shaped front flange extending from a second surface of and opening toward said trailing edge of said panel; (e) forming a shoulder in said panel spaced from said trailing edge and extending substantially perpendicularly from said first surface, said shoulder comprising substantially abutting, transversely extending sections of said panel, and having an apex being substantially aligned along the centers of said holes; (f) bending an outer portion of said shoulder into a lip extending substantially perpendicularly from a base portion of said shoulder toward said leading edge; (g) inserting filler material between and bonding together said sections of said panel comprising said shoulder; and (h) forming a plurality of cooling holes through said panel adjacent said front flange.

Claim 14

A method of fabricating a sheet metal combustor liner panel which when joined with a plurality of other panels defines a liner for a combustor, comprising: (a) providing a generally rectangular panel of sheet metal, said panel including leading and trailing edges aligned substantially perpendicularly to a longitudinal centerline of said panel, and including two side edges aligned substantially parallel to said longitudinal centerline; (b) perforating said panel to provide a plurality of elongated holes aligned parallel to and spaced from said trailing edge, a major axis of each of said holes being aligned parallel to said longitudinal centerline; (c) forming said panel into an arc about said longitudinal centerline, said arc having a radius equal in magnitude to a corresponding radius of said liner for said combustor; (d) forming a section of said panel adjacent said leading edge into a generally semicircular shaped front flange extending from a second surface of and opening toward said trailing edge of said panel; (e) forming a shoulder in said panel spaced from said trailing edge and extending substantially perpendicularly from said first surface, said shoulder comprising substantially abutting, transversely extending sections of said panel, and having an apex being substantially aligned along the centers of said holes; (f) bending an outer portion of said shoulder into a lip extending substantially perpendicularly from a base portion of said shoulder toward said leading edge; (g) inserting filler material between and bonding together said sections of said panel comprising said shoulder; and (h) forming a plurality of cooling holes through said panel adjacent said front flange.