A process of forming a shaped cooling passage in an article comprising positioning the article within a laser drilling apparatus; laser ablating a near net-shaped cooling passage having a meter section and a diffuser section; forming a re-recast on an interior wall of said cooling passage in both the meter section and the diffuser section; positioning the article within an electric discharge machining apparatus; and electric discharge machining said re-cast from said interior wall at both the meter section and diffusor section with the same electric discharge machine electrode to form a finished shaped cooling passage.

A hand-held device is a portable device configured to be attached to and detached from a metal board, and includes a casing and a magnet disposed inside the casing so as to be attracted to the metal board via an attachment face of the casing. The hand-held device further includes an urging element for urging the magnet so that the magnet moves in a direction away from the attachment face when the casing is detached from the metal board.

A hand-held device is a portable device configured to be attached to and detached from a metal board, and includes a casing and a magnet disposed inside the casing so as to be attracted to the metal board via an attachment face of the casing. The hand-held device further includes an urging element for urging the magnet so that the magnet moves in a direction away from the attachment face when the casing is detached from the metal board.

A hand-held device is a portable device configured to be attached to and detached from a metal board, and includes a casing and a magnet disposed in the casing. The hand-held device further includes a moving unit disposed so as to surround the magnet when an attachment face of the casing that is attached to the metal board is viewed from the front, the moving unit being configured to move so as to extend in a direction in which a distal end portion of the moving unit moves away from the attachment face of the casing when the casing is detached from the metal board.

A hand-held device is a portable device configured to be attached to and detached from a metal board, and includes a casing and a magnet disposed in the casing. The hand-held device further includes a moving unit disposed so as to surround the magnet when an attachment face of the casing that is attached to the metal board is viewed from the front, the moving unit being configured to move so as to extend in a direction in which a distal end portion of the moving unit moves away from the attachment face of the casing when the casing is detached from the metal board.

A system is disclosed as including a seal for sealing an area between a hanger and a housing of a wellhead. The seal is provided with at least a notch that defines at least a movable portion such as a wing or a lip. An e-ring is provided for a first energizing of the seal. The movable portion enables pressurized fluid from beneath the seal to cause the movable portion to protrude further against a mating side in the wellhead and the hanger for a second energizing of the seal. This type of seal maintains or improves the sealing of the wellhead in high pressure applications. Methods applied to the above seal are also disclosed.

A system is disclosed as including a seal for sealing an area between a hanger and a housing of a wellhead. The seal is provided with at least a notch that defines at least a movable portion such as a wing or a lip. An e-ring is provided for a first energizing of the seal. The movable portion enables pressurized fluid from beneath the seal to cause the movable portion to protrude further against a mating side in the wellhead and the hanger for a second energizing of the seal. This type of seal maintains or improves the sealing of the wellhead in high pressure applications. Methods applied to the above seal are also disclosed.

A method for producing a plate-fin heat exchanger core includes the steps of stacking a bottom end sheet, multiple alternately stacked individual hot and cold layers, and a top end sheet, each of the individual hot and cold layers including a fin element forming multiple parallel open-ended fluid channels, a parting sheet separating the various individual layers, and two closure bars positioned on opposite sides of the fin element, parallel to the open-ended channels and extending a length of the open-ended channels, brazing the bottom end sheet, the various layers, and the top end sheet in a brazing furnace; and removing material from each of the exterior faces by precision machining, thereby removing material from each closure bar outer face. The precision machining can include electrical discharge machining, laser cutting, band sawing, drilling, boring, hogging, acid etching, and ion milling, in any combination.

A method for producing a plate-fin heat exchanger core includes the steps of stacking a bottom end sheet, multiple alternately stacked individual hot and cold layers, and a top end sheet, each of the individual hot and cold layers including a fin element forming multiple parallel open-ended fluid channels, a parting sheet separating the various individual layers, and two closure bars positioned on opposite sides of the fin element, parallel to the open-ended channels and extending a length of the open-ended channels, brazing the bottom end sheet, the various layers, and the top end sheet in a brazing furnace; and removing material from each of the exterior faces by precision machining, thereby removing material from each closure bar outer face. The precision machining can include electrical discharge machining, laser cutting, band sawing, drilling, boring, hogging, acid etching, and ion milling, in any combination.

A method of remanufacturing a turbine blade having a platform includes placing a puck against a surface of the platform. The method may include electrical discharge machining an interface between the puck and the platform and brazing the puck to the platform. A total radial thickness of a finally remanufactured platform of the remanufactured turbine blade is greater than an initial radial thickness of the platform before remanufacturing the turbine blade.