A method for redistributing an area of residual stress around a machined central aperture in an engine component. The method includes changing tensile stress to compressive stress at an area circumscribing the machined aperture. The method can be applied to, for example, a forged engine component such as a rotating disk or an impeller part for a gas turbine engine.

A method for redistributing an area of residual stress around a machined central aperture in an engine component. The method includes changing tensile stress to compressive stress at an area circumscribing the machined aperture. The method can be applied to, for example, a forged engine component such as a rotating disk or an impeller part for a gas turbine engine.

A method and system for an automated modular construction factory is presented. A plurality of pre-cast construction panels, a quality control zone, a transportation system, a general stockyard, a sequencing system, an assembly zone, an assembly system, a transit system, a finishing zone, and a plurality of finishing stations are provided. The pre-cast construction panels undergo quality control under the quality control zone and are transported and ordered to the general stockyard through the transportation and sequencing systems. The panels are then assembled into a constructed room in the assembly zone through the assembly system. The constructed room is transported by the transit system to the finishing zone where the constructed room is furnished and completed by the plurality of finishing stations.

A method and system for an automated modular construction factory is presented. A plurality of pre-cast construction panels, a quality control zone, a transportation system, a general stockyard, a sequencing system, an assembly zone, an assembly system, a transit system, a finishing zone, and a plurality of finishing stations are provided. The pre-cast construction panels undergo quality control under the quality control zone and are transported and ordered to the general stockyard through the transportation and sequencing systems. The panels are then assembled into a constructed room in the assembly zone through the assembly system. The constructed room is transported by the transit system to the finishing zone where the constructed room is furnished and completed by the plurality of finishing stations.

A turning fixture including a fixture insert attached to the turning fixture, the fixture insert comprising an upper portion having an upper portion body, the upper portion body includes a central span with a first arm and second arm opposite the first arm, a cavity is defined between the first arm and the second arm along the central span on an inner side of the upper portion body; the fixture insert including a lower portion having a lower portion body that includes a chamber located centrally between a first end and a second end; and a rod is insertable through the lower portion through the chamber, the rod being configured to apply a force to a compressor spindle vane inserted between the upper portion and the lower portion.

A device for controlling deformation of a large-scale crankshaft comprising a crankshaft holder that is arranged for fixing the crankshaft so that the crankshaft is aligned with an axis; a regulatory bracket that is arranged on the crankshaft holder at a position corresponding to the crankshaft; and a high-energy acoustic beam transducer that is arranged on the bracket and is provided with an end part coupled with the crankshaft. The crankshaft is fixed through the crankshaft holder, high-energy ultrasonic waves are injected into the crankshaft by the transducer, mass points in the crankshaft are driven to vibrate along the acoustic beam direction, and machining residual stress of the crankshaft is removed through the high-energy acoustic beam to realize the regulation and control of the residual stress in the material in the specific direction, so that machining precision of the crankshaft is ensured and machining deformation of the crankshaft is reduced.

A multiple heat source-type preheating device for a machining apparatus is provided. The multiple heat source-type preheating device for a machining apparatus includes a first heat source provision module and a second heat source provision module. The first heat source provision module is installed to be moved along a portion of a material to be machined along with a spindle adapted to rotate a tool at high speed, and is configured to preheat the portion of the material to be machined by providing a heat source thereto. The second heat source provision module is installed to be moved along with the first heat source provision module, and is configured to preheat the portion of the material to be machined by providing a heat source thereto while preceding or following the first heat source provision module.

A method includes pressing a macromolecular material to form a successive reflective layer, heating the reflective layer to a preset temperature value, stirring luminous powder and fluorescent powder at a high speed so that the luminous powder and the fluorescent powder are mixed evenly to form a luminous blank, evenly painting the luminous blank on the reflective layer, drying the luminous blank at a predetermined temperature value to form a luminous layer, and cooling the reflective layer and the luminous layer to produce a substrate which has reflective and self-luminous features. Thus, the luminous layer of the substrate emits light in a dark environment by reflection of the reflective layer of the substrate.

A multiple heat source-type preheating device for a machining apparatus is provided. The multiple heat source-type preheating device for a machining apparatus includes a first heat source provision module and a second heat source provision module. The first heat source provision module is installed to be moved along a portion of a material to be machined along with a spindle adapted to rotate a tool at high speed, and is configured to preheat the portion of the material to be machined by providing a heat source thereto. The second heat source provision module is installed to be moved along with the first heat source provision module, and is configured to preheat the portion of the material to be machined by providing a heat source thereto while preceding or following the first heat source provision module.

A tool-changing carrier, that is to say a tool turret (1) with a rotary turret unit having at least two tool mounts (9) and arranged such that it can be rotated relative to a basic turret body (12), has radiation-transmission means which are provided for passing electromagnetic radiation through the tool-changing carrier or along the same. A tool system comprises such a tool-changing carrier and at least two tool heads (3, 5, 15, 17, 18, 27, 34, 40, 43), intended for fixing on the tool mounts (9), wherein at least one tool head is an optical tool head (3, 15, 17, 18) which is suitable for exposing a workpiece (11) to electromagnetic radiation and has a tool optics unit (23) for deflecting and/or forming the electromagnetic radiation.