Abstract: A temperature control method for additive manufacturing includes directing an energy beam of a first energy source toward a material and fusing at least a portion of the material to form a cladding layer, forging the cladding layer with a micro-forging device, and detecting a first internal effect parameter of the cladding layer at a forging position where is forged by the micro-forging device. The first internal effect parameter includes at least one of a stress or a strain of the cladding layer. The method also includes calculating a first calculated temperature of the cladding layer at the forging position based on the first internal effect parameter and adjusting the at least one of the first energy source and the micro forging device if the first calculated temperature does not fall within a desired temperature range.

Abstract: A forging head for additive manufacturing, comprising a base portion and a forging portion. The forging portion extends from the base portion for forging a cladding layer during formation of the cladding layer by additive manufacturing. The forging head further comprising a through hole which is formed through the base portion and the forging portion, for at least one of an energy bean and an additive material to pass through during formation of the cladding layer.

Abstract: An additive manufacturing system, comprises an energy source device for providing a first energy beam and a second energy beam; and a forging device comprising a forging head. The first energy beam and a substrate are configured to move relative to each other to fuse at least a portion of a material added to the surface of the substrate for forming a cladding layer on the substrate. The forging head is configured to forge the cladding layer during formation of the cladding layer. The second energy beam is configured to heat a forging area of the cladding layer.

Abstract: A temperature control method for additive manufacturing includes directing an energy beam of a first energy source toward a material and fusing at least a portion of the material to form a cladding layer, forging the cladding layer with a micro-forging device, and detecting a first internal effect parameter of the cladding layer at a forging position where is forged by the micro-forging device. The first internal effect parameter includes at least one of a stress or a strain of the cladding layer. The method also includes calculating a first calculated temperature of the cladding layer at the forging position based on the first internal effect parameter and adjusting the at least one of the first energy source and the micro forging device if the first calculated temperature does not fall within a desired temperature range.

Abstract: The invention relates to a temperature control system for additive manufacturing and method for same. The temperature control system comprises: a cladding device configured to fuse a material and form a cladding layer, the cladding device comprising a first energy source; a micro-forging device coupled to the cladding device for forging the cladding layer; a detecting device; a control module; and an adjusting module coupled to at least one of the first energy source and the micro-forging device.

Abstract: An additive manufacturing system, comprises an energy source device for providing a first energy beam and a second energy beam; and a forging device comprising a forging head. The first energy beam and a substrate are configured to move relative to each other to fuse at least a portion of a material added to the surface of the substrate for forming a cladding layer on the substrate. The forging head is configured to forge the cladding layer during formation of the cladding layer. The second energy beam is configured to heat a forging area of the cladding layer.

Abstract: A fluid conduit (10) is provided having (a) a fluid conduit exterior surface (14); (b) a fluid conduit interior surface (16); (c) an electroless nickel protective coating (18) disposed upon one or both of the fluid conduit interior surface and the fluid conduit exterior surface; and (d) a layer (20) of Ni3S2 disposed upon and substantially covering the electroless nickel protective coating. The fluid conduit can be any fluid conduit through which a fluid may be caused to pass, such as a downhole tubular used in oil and gas production, or a gas liquid cyclonic separator. And a hydrocarbon production tube, a method of producing a fluid conduit comprising a nickel sulfide protective layer, a machine component comprising at least one surface having a protective outer layer are provided. The combination of the electroless nickel inner protective coating with an outer layer of Ni3S2 affords articles such as fluid conduits and machine components with exceptional scale and corrosion resistance.

Abstract: The invention relates to a temperature control system for additive manufacturing and method for same. The temperature control system comprises: a cladding device configured to fuse a material and form a cladding layer, the cladding device comprising a first energy source; a micro-forging device coupled to the cladding device for forging the cladding layer; a detecting device; a control module; and an adjusting module coupled to at least one of the first energy source and the micro-forging device.

Abstract: A forging head for additive manufacturing, comprising a base portion and a forging portion. The forging portion extends from the base portion for forging a cladding layer during formation of the cladding layer by additive manufacturing. The forging head further comprising a through hole which is formed through the base portion and the forging portion, for at least one of an energy bean and an additive material to pass through during formation of the cladding layer.

Abstract: Embodiments of the invention disclose a method for unlocking a touch-sensitive device and a touch-sensitive device, which resolves a problem that a user always performs unlocking by inputting a default password or by using a default preset graphical interaction interface of the touch-sensitive device, which is monotonous and uninteresting. The method includes: receiving, by the touch-sensitive device, a second unlocking manner input by a user; and unlocking itself by the touch-sensitive device if the second unlocking manner is the same as a first unlocking manner, where the first unlocking manner is preset by the user according to an unlocking feature, and the unlocking feature is position-related and is preset by the user. The present invention is applicable to unlocking a touch-sensitive device having a touchscreen, such as a touchscreen mobile phone or a tablet computer.

Abstract: Embodiments of the present invention provide a file presentation method and apparatus, and relate to the field of data management, which can help a user manage and view data. The file presentation method includes: obtaining files and file information typed by a user and corresponding to the files; extracting keywords from the file information corresponding to the files and using the keywords as tags of the files; and presenting files with a same tag according to a preset rule. The present invention can be applied in data management and viewing.