Apparatus and associated methods relate to a unitary ring gear-flange body (URGFB). In an illustrative example, the flange body may be spin-formed and may, for example, include a riser body extending substantially parallel to a longitudinal axis and a flange extending substantially radially outward from the riser body. To the riser body may, for example, be welded a ring gear to form a unitary assembly, the ring gear having an axis of revolution aligned with the longitudinal axis. A continuous coating may, for example, be applied to at least a selected portion of a surface of the unitary assembly. Various embodiments may advantageously provide a cost-efficient, weight-efficient, and/or time-efficient unitary body which may, for example, be coupled to machinery to provide a shaftless torque-transmitter.

A cam-type timepiece component (1), which has at least one portion of substantially planar shape, having a material hardness greater than or equal to 600 hv, this portion having a thickness greater than or equal to 350 microns, or even greater than or equal to 400 microns, and comprising at least one functional flank (3) which is substantially perpendicular to a main surface (2) of this portion and has a roughness ra of less than or equal to 50 nm.

A method and an apparatus of a powder bed fusion additive manufacturing system that enables a quick change in the optical beam delivery size and intensity across locations of a print surface for different powdered materials while ensuring high availability of the system. A dynamic optical assembly containing a set of lens assemblies of different magnification ratios and a mechanical assembly may change the magnification ratios as needed. The dynamic optical assembly may include a transitional and rotational position control of the optics to minimize variations of the optical beam sizes across the print surface.

A joining outer diameter portion located at an axial-direction intermediate portion and fitting tapered outer diameter portions located on both axial-direction sides across the joining outer diameter portion are formed on an outer peripheral face portion of an inner metal member. A joining inner diameter portion corresponding to the joining outer diameter portion and having a smaller diameter than the joining outer diameter portion so as to overlap with the joining outer diameter portion, and fitting tapered inner diameter portions corresponding to the fitting tapered outer diameter portions are formed on an inner peripheral face portion of an outer metal member. The joining portions are joined by means of resistance heating generated by conducting electricity while they are pressurized in the axial direction. The fitting tapered portions are brought into a fitted state in association with the joining.

A method and an apparatus for collecting powder samples in real-time in powder bed fusion additive manufacturing may involves an ingester system for in-process collection and characterizations of powder samples. The collection may be performed periodically and uses the results of characterizations for adjustments in the powder bed fusion process. The ingester system of the present disclosure is capable of packaging powder samples collected in real-time into storage containers serving a multitude purposes of audit, process adjustments or actions.

The cam-type timepiece component (1) has at least one portion of substantially planar shape, having a material hardness greater than or equal to 600 HV, the portion having a thickness greater than or equal to 200 microns, or even greater than or equal to 350 microns, or even greater than or equal to 400 microns, and at least one functional flank (3) which is substantially perpendicular to a main surface (2) of the portion and has a roughness Ra of less than or equal to 50 nm.

Apparatus and associated methods relate to a unitary ring gear-flange body (URGFB). In an illustrative example, the flange body may be spin-formed and may, for example, include a riser body extending substantially parallel to a longitudinal axis and a flange extending substantially radially outward from the riser body. To the riser body may, for example, be welded a ring gear to form a unitary assembly, the ring gear having an axis of revolution aligned with the longitudinal axis. A continuous coating may, for example, be applied to at least a selected portion of a surface of the unitary assembly. Various embodiments may advantageously provide a cost-efficient, weight-efficient, and/or time-efficient unitary body which may, for example, be coupled to machinery to provide a shaftless torque-transmitter.

A method and an apparatus for collecting powder samples in real-time in powder bed fusion additive manufacturing may involves an ingester system for in-process collection and characterizations of powder samples. The collection may be performed periodically and uses the results of characterizations for adjustments in the powder bed fusion process. The ingester system of the present disclosure is capable of packaging powder samples collected in real-time into storage containers serving a multitude purposes of audit, process adjustments or actions.

An additive manufacturing system including a two-dimensional energy patterning system for imaging a powder bed is disclosed. Improved chamber designs, multiple chambers, powder handling and re-use systems, and powder characterization methods are disclosed.

A lay shaft assembly for a speed reduction gearbox in a geared turbofan gas turbine engine, the lay shaft assembly having an output gear formed on a lay shaft as a single piece, and an input welded gear formed as a separate piece that is welded to the shaft in close proximity to the output gear. The output gear is machined and precision-ground prior to welding the input welded gear to the lay shaft so that the two gears can be located in close proximity. The input welded gear is precision-ground after the gear has been welded to the shaft.