摘要:
Es wird ein Verfahren zur mechanischen Ausheilung funktionaler Hartmetall- oder Cerment-Oberflächen (2) bereitgestellt. Eine nicht an eine Schneidkante angrenzende, freiliegende funktionale Hartmetall- oder Cermet-Oberfläche (2) wird durch eine Strahlbehandlung mit einem Partikelstrahl (S) gestrahlt, um Mikrorisse und/oder Oberflächenzerrüttungen auszuheilen.
摘要:
An improved process for repair of worn and damaged surfaces of railway structures such as frog and diamond transition surfaces, rail head surfaces and wheels. A worn or damaged surface is prepared using a robotically-controlled laser to melt or gouge away metal using controlled laser energy and air pressure to remove existing worn or damaged surfaces. The process further utilizes laser cladding, laser weld overlaying, or laser additive manufacturing, of formulated powder, wire or stick welding material to worn surfaces that have been prepared for material build-up to original dimensions and similar metallurgical properties.
摘要:
A method for the repairing a semiconductor processing piece utilized in a semiconductor processing chamber. The process includes the steps of machining off a portion of the semiconductor processing piece to form a machined surface, positioning a new part over the machined surface to replace the portion, placing a braze layer between the new part and the machined surface and heating at least the brazing layer to form a hermetic joint between the new part and the semiconductor processing piece. The semiconductor processing piece may be a heater or an electrostatic chuck. The joint material is adapted to later withstand the environments within a process chamber during a semiconductor manufacturing process.
摘要:
Techniques for repairing a shell and tube heat exchange device including a housing having at least a first member and a second member disposed along a longitudinal side thereof are provided. A partial pipe is provided having a first end, a second end, and a continuous interior surface. The partial pipe is coupled to the housing transverse to the longitudinal direction. The first end of the partial pipe is coupled to the first member and the second end of the partial pipe is coupled to the second member to define a cavity between the continuous interior surface of the partial pipe and the longitudinal side of the exchange device and to prevent leakage of the exchange device.
摘要:
An additive manufacturing apparatus (10) and process including selectively heating a processing plane of a bed of powdered material (14) that includes a powdered metal material (14'), and may also include a powdered flux material (14''). The heating may be accomplished by directing an energy beam, such as a laser beam (20), toward a processing plane (27) of the bed. One or more masking elements (61, 62) are disposed between a source (18) of the beam and the processing plane; and the masking elements are variable to change a beam pattern at the processing plane according to a predetermined shape of a component (22) to be formed or repaired.
摘要:
A preform (22A-F) containing metal (32, 34 36A-C, 38) and flux (33, 35, 37, 39AC) for depositing a metal layer to a component being repaired or additively manufactured. The metal may be constrained in the preform in a distribution that creates a desired shape of the deposited metal in response to melting of the metal with an energy beam (46). The preform may be embodied as woven (22D) or unwoven (22B, 22C) cloth containing fibers of the flux, and fibers, particles or foil of the metal. It may contain at least 30 wt% fibers and at least 40% void fraction to enable flexibility and laser penetration. Alternating layers (32, 33) or flexible sintered sheets (36A-C, 37) of metal and flux fibers may be bound or laminated to form the preform. A woven preform may be made of alternating or crossing yarns (34, 35) of metal and flux.
摘要:
The present disclosures and inventions relate to a layered weld joint, comprising: a weld zone (12) defined by at least one connecting surface (28) of an outer wall (22) of at least one workpiece (20), the outer wall (22) of each workpiece (20) of the at least one workpiece (20) having an interior surface (24) and an exterior surface (26), wherein each connecting surface (28) of the at least one connecting surface (28) extends between the interior and exterior surfaces of the outer wall (22) of a workpiece (20) of the at least one workpiece (20); and a plurality of stacked metallic layers (30) disposed within the weld zone (12), the plurality of stacked metallic layers (30) being stacked relative to a weld axis (14), each metallic layer (30) having a first face (32) and an opposed second face (34) wherein each respective first face (32) and second face (34) extends between opposed first and second side edges (36, 38) and wherein at least a portion of the first and second side edges (36, 38) of each metallic layer (30) is welded to the at least one connecting surface (28) of the outer wall (22) of a workpiece (20) of the at least one workpiece (20).
摘要:
A method (2200) of remanufacturing a wheel housing flange (102) is provided. The wheel housing flange (102) includes a hole (104) configured to receive a fastener, the hole (104) extending from a first face (204) 5 of the wheel housing flange (102) to a second face (206) of the wheel housing flange (102). The method (2200) includes machining the hole (104) to a machined diameter larger than an original diameter. The method (2200) further includes securing a first insert (500) in the hole (104) adjacent to the first face (204). The method (2200) further includes securing a second insert (800) in the 10 hole (104) adjacent to the second face (206).
摘要:
The present disclosures and inventions relate to a layered weld joint, comprising: a weld zone defined by at least one connecting surface of an outer wall of at least one work piece, the outer wall of each work piece of the at least one work piece having an interior surface and an exterior surface, wherein each connecting surface of the at least one connecting surface extends between the interior and exterior surfaces of the outer wall of a work piece of the at least one work piece; and a plurality of stacked metallic layers disposed within the weld zone, the plurality of stacked metallic layers being stacked relative to a weld axis, each metallic layer having a first face and an opposed second face wherein each respective first face and second face extends between opposed first and second side edges and wherein at least a portion of the first and second side edges of each metallic layer is welded to the at least one connecting surface of the outer wall of a work piece of the at least one work piece.