Flame arrestors and methods of making flame arrestors are described herein. An example flame arrestor includes a cylindrical body. The body includes a first end and a second end opposite the first end. The first end of the body has an end surface. The body also includes a recess formed in the end surface of the first end. The recess is defined by a recessed surface extending inward from the end surface toward the second end. The body further includes a set of channels formed through the body between the first and second ends. The channels extend through the recessed surface.

A remanufactured internal spline component includes an inner surface defining a cylindrical bore and a remanufactured internal geometry on the inner surface. The internal geometry has a maximum diameter and a minimum diameter. The remanufactured internal geometry is created by removing a worn internal geometry to a pre-cladding diameter, cladding the inner surface in a plurality of layers by laser cladding to produce a cladded surface, and machining the cladded surface to produce the remanufactured internal geometry.

A three-dimensional deposition device and a three-dimensional deposition device method are provided. Included are: a powder passage and a nozzle injection opening that supply a powder toward a working surface of an object to be processed; a laser path that irradiates the powder with a laser beam to sinter or melt and solidify at least a part of the powder irradiated with the laser beam so as to form formed layers; a rotation table unit serving as an irradiation angle changing unit that changes an irradiation angle of the laser beam emitted from the laser path to the working surface; and a controller that controls the rotation table unit so that the irradiation angle on an overhanging side with respect to the working surface is less than 90° in a range in which the formed layers can be formed.

A laser printing device for making high-precision 3D products includes a platform, a device supplying and spreading powder for transporting and spreading metal powder on the top surface of the platform, a first laser source for emitting continuous laser beam, a second laser source for emitting pulsed laser beam, an optical path switching device connected with the first laser source and the second laser source for controlling and selecting the first laser source and the second laser source to emit laser beam, a scanning galvanometer system for focusing the laser beam on the platform for making the continuous laser beam melt the metal powder and a layer of a product being formed after cooling, a mechanical processing device for polishing the final surface of the product. The pulsed laser beam cuts the edge of each newly-deposited layer with geometric accuracy. A laser printing method for 3D product is also provided.

A wafer having a first surface, an opposite second surface, and an outer circumferential surface that includes a curved part curved outward in a protruding manner is separated into two wafers. Part of the wafer is removed along the curved part, and a separation origin is formed inside the wafer by positioning the focal point of a laser beam with a wavelength having transmissibility with respect to the wafer inside the wafer and executing irradiation with the laser beam while the focal point and the wafer are relatively moved in such a manner that the focal point is kept inside the wafer. The wafer is separated into two wafers by an external force.

A metal member includes a first plate, and a second plate abutting against and welded to the first plate in at least one butt portion. In the butt portion, a length from a first end to a second end of a welding boundary line between the first plate and the second plate is longer than a length of a straight line connecting the first end to the second end of the welding boundary line.

There is provided a method of manufacturing a composite molded body that can increase a processing speed and a joining strength in a different direction. The method of manufacturing a composite molded body in which a metal molded body and a resin molded body are joined, includes the steps of: continuously irradiating a joint surface of the metal molded body with laser light at an irradiation speed of 2,000 mm/sec or more by using a continuous-wave laser; and arranging, within a mold, a portion of the metal molded body including the joint surface irradiated with the laser light in the preceding step and performing injection molding of a resin forming the resin molded body, or performing compression molding in a state where a portion of the metal molded body including the joint surface irradiated with the laser light in the preceding step and a resin forming the resin molded body are made to contact with each other.

The invention relates to a device (1) for manufacturing a part (100) made of metallic material, comprising a depositing member (2) made of said metallic material. The device (1) further comprises an impacting member (4) of the material being deposited by emitting an energy beam (5), so as to locally modify its crystalline structure.

An apparatus for finishing a component includes at least one articulating arm, at least one plasma gun disposed at an end of a first articulating arm of the at least one articulating arm, at least one shot peen nozzle maintained in a fixed positioned relative to the plasma gun, and a controller controllably coupled to the articulating arm such that output signals from the controller control motions of the articulating arm.

A system and method of additive manufacturing is disclosed herein which when run or performed form a product with a powder-based additive manufacturing device by adding sequential layers of material on top of one another. As each sequential layer of material is added, the system and method can include monitoring the sequential layer with a defect analysis subsystem to detect whether the sequential layer has any defects. For a detected defect, it can be determined whether defect correction is required. For a required defect correction, one or more correction parameters for the required defect correction can be identified; and a correction command including the one or more correction parameters can be sent to the additive manufacturing device, the correction command causing the additive manufacturing device to help correct the detected defect in the sequential layer according to the correction parameters prior to moving on to a next sequential layer.