A method and related system and apparatus for refurbishing worn rail transit rails to a desired refurbished rail surface profile substantially similar to the surface profile of a newly-manufactured rail, comprising: depositing a first line of fill material along a lower-inside section to be refurbished; in N1 successive iterations thereafter, progressing circumferentially from the lower-inside section to be refurbished to an upper-outside section to be refurbished, depositing an n+1.sup.th line of fill material adjacent an n.sup.th line of fill material wherein the n.sup.th line of fill material substantially provides a flow barrier against the n+1.sup.th line of fill material flowing past the n.sup.th line of fill material.

A method for remanufacturing an ultra-large copper nut includes steps of: step (1) coarsening treatment; step (2) purifying treatment; step (3) detecting a material of the ultra-large copper nut; step (4) sleeving a thermal insulation device; step (5) preheating the ultra-large copper nut; step (6) melting-deposition shaping; step (7) post-processing; and step (8) detecting. The method of the present invention simultaneously utilizes water, electricity, gas, fire and machine and performs melting-deposition on materials by simultaneously supplying water, electricity, gas, fire and machine according to the designed requirements. The method of the present invention solves problems of large thickness abrasion and remediation of fracture components. The method of the present invention is capable of preventing the ultra-large copper nut from deformation and collapse and is a feasible remanufacturing for decreasing the huge economic loss caused by damages of expensive ultra-large of nonferrous metals.

A rub rail repair tool includes a tool engaging element disposed on one longitudinal side of a flange. A working element is disposed on the other longitudinal side of the flange. The working element is shaped to define a maximum diameter dimension and a minimum diameter dimension. The maximum diameter dimension is substantially equal to a distance between an undamaged rub rail affixed to a lateral edge of a truck bed frame. At least one tool engaging feature is formed in the tool engaging element. The tool engaging feature enables coupling of a torque arm to the tool engaging element to enable rotation thereof about a longitudinal axis thereof by applying force to the torque arm.

A process of preparing a turbine rotor wheel, a repair tool for machining a turbine rotor wheel, and a turbine rotor wheel are disclosed. The process includes providing the turbine rotor wheel, the turbine rotor wheel having a dovetail slot, a cooling slot, and a dovetail acute corner formed by the dovetail slot and the cooling slot and removing a stress region from the dovetail acute corner. The repair tool permits removal of strained material while also reducing the operating stress of the feature. The turbine rotor wheel includes a machined portion resulting in lower stress for the turbine rotor wheel.

A rub rail repair tool includes a tool engaging element disposed on one longitudinal side of a flange. A working element is disposed on the other longitudinal side of the flange. The working element is shaped to define a maximum diameter dimension and a minimum diameter dimension. The maximum diameter dimension is substantially equal to a distance between an undamaged rub rail affixed to a lateral edge of a truck bed frame. At least one tool engaging feature is formed in the tool engaging element. The tool engaging feature enables coupling of a torque arm to the tool engaging element to enable rotation thereof about a longitudinal axis thereof by applying force to the torque arm.

A rub rail repair tool includes a tool engaging element disposed on one longitudinal side of a flange. A working element is disposed on the other longitudinal side of the flange. The working element is shaped to define a maximum diameter dimension and a minimum diameter dimension. The maximum diameter dimension is substantially equal to a distance between an undamaged rub rail affixed to a lateral edge of a truck bed frame. At least one tool engaging feature is formed in the tool engaging element. The tool engaging feature enables coupling of a torque arm to the tool engaging element to enable rotation thereof about a longitudinal axis thereof by applying force to the torque arm.

The present invention relates to a method for recycling a tantalum coil for sputtering that is disposed between a substrate and a sputtering target. The method for recycling a tantalum coil for sputtering is characterized in that the whole or partial surface of a spent tantalum coil is subject to cutting (cutting is performed until a re-deposited film and knurling traces are eliminated) so as to eliminate the re-deposited film that was formed during sputtering, and knurling is newly performed to the cut portion. While sputtered grains are accumulated (re-deposited) on the surface of the tantalum coil disposed between the substrate and the sputtering target during sputtering, by eliminating the sputtered grains accumulated on the spent coil by way of cutting after the sputtering is complete, the tantalum coil can be efficiently recycled. Thus, provided is technology capable of lean manufacturing of new coils, improving productivity, and stably providing such coils.