Abstract:
A method of additive manufacture suitable for large and high resolution structures is disclosed. The method may include sequentially advancing each portion of a continuous part in the longitudinal direction from a first zone to a second zone. In the first zone, selected granules of a granular material may be amalgamated. In the second zone, unamalgamated granules of the granular material may be removed. The method may further include advancing a first portion of the continuous part from the second zone to a third zone while (1) a last portion of the continuous part is formed within the first zone and (2) the first portion is maintained in the same position in the lateral and transverse directions that the first portion occupied within the first zone and the second zone.
Abstract:
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.
Abstract:
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.
Abstract:
A method and apparatus for permanently joining two or more metallic vehicle frame components using magnetic impulse welding techniques is disclosed. In a first embodiment, an overlap joint is formed by the joinder of two individual open channel side rail sections to form a portion of a vehicle frame side rail. The first side rail section is initially formed slightly smaller in size than the second side rail section so that it may be disposed telescopically therein with clearance. An electromagnetic coil is provided for generating a magnetic field which causes the side rail sections to move toward one another at a high velocity. The high velocity impact and the large pressures cause the two side rail sections to weld or molecularly bond. Alternatively, a bracket can be joined to a side rail section in a similar manner. In a second embodiment, a pair of closed channel structural members are formed using hydroforming techniques. The end portions of two hydroformed structural members are then disposed concentrically within an electromagnetic coil. When energized, the electromagnetic coil causes the end portions to move toward one another so as to weld or molecularly bond.
Abstract:
PROBLEM TO BE SOLVED: To solve such a problem that since a panel has out-of-plane deformation when a panel zone is hollow whereby a bending moment applied to a beam can not be borne by a web in an elastic area, a section modulus of beam ends used in structural calculation of an architectural construction is the section modules of only a flange excluding the web, and thus the strength of the beam ends is lowered, so that a larger beam has to be used and an extra beam depth is required, which results in an increase in the weight of a steel frame. SOLUTION: The thickness of a diaphragm is largely increased in the direction of the web, and a prestrain is applied by heat wiring or weld padding a lower face of the beam. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an optical unit capable of suppressing projection of a projection from a side plate part of a cover used for a fixing body to the outside even when the projection provided in a coupling part on the fixing body side of a spring member is welded with the side plate part, and a method for manufacturing the optical unit.SOLUTION: In an optical unit 100 having a shake correction function, the process of fixing a plate-like spring member 600 to an upper cover 250 comprises: arranging the plate-like spring member 600 inside the upper cover 250; superimposing small projections 660 provided apart from each other for every welding spot on an edge surface 231 on the rear side in an optical axis direction of a side plate part 230; emitting a laser beam toward a projection 662 toward the edge surface 231 on the rear side in the optical axis direction of the side plate part 230 while pressing some projections 661 out of the plurality of projecting parts 660 with a jig; and emitting the laser beam to the projections 661. Consequently, all tip sides of the projecting parts 660 serve as melting parts formed by welding.