Sodick Co., Ltd.

Other

Sodick Co., Lyd.

Shuji Okazaki

Shuichi Kawada

Katsutaka Muranaka

Ichiro Araie

Tsuyoshi Saito

Yasuyuki Miyashita

Naoto Nakamura

Atsushi Hirota

Akio Hosaka

Sadao Sano

Katsuhiro Nakano

Masahiro Takano

Kenji Yamada

Yuta Yoshida

Hiroshi Amioka

Kazo Urushizaki

Hiroyasu Miyakawa

Kazufumi Nambu

Yoshio Nakashima

The present invention provides a system capable of estimating a molding state in a manufacturing process of the lamination molded object. According to the present invention, provided is a system for estimating a molding state in a manufacturing process of the lamination molded object including an image acquisition unit and an analysis unit. The lamination molded object is manufactured by repeating a material layer forming step of forming a material layer by supplying material powder onto a molding region and a solidified layer forming step of forming a solidified layer by irradiating the material layer with a laser beam. The image acquisition unit is configured to acquire image data of a spatter generated around a molten pool formed by irradiation with the laser beam. The analysis unit is configured to analyze the image data to estimate a parameter representing the molding state.

Lamination molding apparatus, molding state estimation system, molding state estimation method, molding state estimation program, and learning method of learning model for molding state estimation

A build region limitation unit for an additive manufacturing apparatus includes a movable unit fixed to a build table and a non-movable unit placed on a base frame. The movable unit includes a first anti-scattering frame provided to protrude upward. The non-movable unit includes a flat plate that covers a first build region with a portion other than an opening and forms a second build region, and a second anti-scattering frame that is provided to protrude downward at an outer periphery of the opening. The first anti-scattering frame surrounds the second anti-scattering frame with a gap therebetween.

Build region limitation unit and additive manufacturing apparatus having the same

An additive manufacturing apparatus includes a chamber, a material layer former, and a guide member. The material layer former includes a base on which a molding region is present, a recoater head that moves on the base in a horizontal direction while discharging material, and a blade that levels the material to form a material layer. The guide member includes a feed chute that is configured to enable the material to be flowed, a shaft that is provided to shut a lower end portion of the feed chute and has a through hole, and a rotary actuator that rotates the shaft. The discharge of the material is switched to an on- or off-state by rotating the shaft.

Additive manufacturing apparatus

The lamination molding apparatus includes an irradiator, a processing device, a cooling device, and an inert gas supply source. The irradiator irradiates a laser beam or an electron beam to a material layer to form a solidified layer. The processing device includes a processing head for holding a tool, and a processing head driver for moving the processing head in at least a horizontal direction. The cooling device is arranged in the processing head and cools a solidified body formed by laminating the solidified layers to a cooling temperature. The cooling device includes a cold gas discharger having a cold gas discharge port for discharging a cold gas being an inert gas having a temperature equal to or lower than the cooling temperature, and discharging the cold gas toward the solidified body. The inert gas supply source supplies the inert gas to the cold gas discharger.

Cooling device with processing head of a lamination molding apparatus

A lamination molding apparatus includes: a material layer forming device that forms a material layer in a molding region; an irradiator that sinters or melts the material layer to form a solidified layer; and a cooling device that cools, to a cooling temperature, at least a part including an upper surface of a solidified body. The material layer forming device includes: a base having the molding region, a recoater head disposed on the base, a recoater head driving device that reciprocates the recoater head in a horizontal direction, and a blade that is arranged on the recoater head and that levels material powder to form the material layer. The cooling device includes: a cooling body that is controlled to the cooling temperature and comes into contact with the upper surface of the solidified body, and a mounting member that mounts the cooling body to the recoater head.

Lamination molding apparatus

A three-dimensional modeled object made of metal including a gas flow path is provided. The gas flow path includes a first structure portion with a lattice structure including a plurality of linear vent holes with a maximum width of equal to or greater than 0.01 mm and equal to or less than 0.10 mm and a frame body portion with a width of equal to or greater than 0.08 mm and equal to or less than 0.25 mm and with a solidification density of equal to or greater than 90%, and has a thickness of equal to or greater than 1 mm and equal to or less than 10 mm.

Three-dimensional modeled object made of metal and method for manufacturing three-dimensional modeled object made of metal

A laminating and shaping apparatus includes a laser radiation unit configured to radiate a laser to a powder layer and form sintered sections, an imaging unit configured to image the sintered sections, a calculation device configured to calculate actual laser radiation positions from positions of the sintered sections and calculate a positional deviation of the laser radiation position at each of the sintered sections, and a correction device configured to correct the actual laser radiation position of each of the sintered sections to a target laser radiation position. The laser radiation unit forms sintered sections to surround the irradiation region by performing laser radiation on places including outermost positions in the irradiation region, and as the recoater head is moved in the horizontal uniaxial direction after imaging of the plurality of sintered sections by the imaging unit, at least a plurality of sintered sections are removed from the irradiation region.

Method of correcting a laser radiation position

A lamination molding apparatus, includes a material layer former to form a material layer; a first emitter to form a solidified layer by irradiating the material layer with a first beam; and a thermal adjuster to adjust a temperature of at least a portion of the solidified layer to at least one of a predetermined first temperature and a predetermined second temperature. The temperature of at least the portion of the solidified layer is adjusted to the first temperature, and then to the second temperature. When the first temperature is referred to as T, the second temperature is referred to as T, a martensite start temperature of the solidified layer is referred to as Ms, and a martensite finish temperature of the solidified layer is referred to as Mf, all of the following relations of T&#x2265;Mf, T&#x3e;T, and T&#x2264;Ms are satisfied.

Lamination molding apparatus and method for producing three-dimensional molded object

A lamination molding apparatus including a chamber covering a molding region; a laser beam source to emit a laser beam for sintering a material powder supplied on the molding region to form a sintered layer; and a scan unit to scan the laser beam. The laser beam has one or more spot shapes including at least an elongated shape, and the scan unit is configured to scan the laser beam, of which the spot shape is an elongated shape, in a lateral direction of the elongated shape, is provided.

A lamination molding apparatus includes a molding table, a molding table driver, and a chuck. The molding table includes a molding region and a temperature adjusting unit. In the molding region, a desired three-dimensional molded object is formed. The temperature adjusting unit has a heating unit with a heater, and a cooling unit with a cooler. The heating unit and the cooling unit are arranged to be stacked in a vertical direction. The molding table driver moves the molding table in the vertical direction. The chuck detachably fixes the temperature adjusting unit to the molding table driver at one fixing point.

A lamination molding apparatus includes a table, powder holding walls, a table driving device, a bucket, and a cover. The powder holding walls surround the table and hold material powder together with the table. The table driving device includes a linear actuator for outputting linear motion and a guide for transmitting the linear motion to the table and moving the table in a vertical direction. The bucket is disposed under the table and stores the material powder falling from between the table and the powder holding walls. The cover surrounds the table driving device between the table and the bucket. At least one portion of the linear actuator and the guide surrounded by the cover or the bucket is arranged along the vertical direction.

A lamination molding apparatus with a molding table, including: a galvanometer scanner configured to irradiate a small irradiation region on the molding table with a laser beam; an inert gas supplying nozzle having an inert gas supplying opening for supplying an inert gas; a fume suction duct having a fume suction opening for suctioning the inert gas containing fumes generated with irradiation of the laser beam; an integration unit integrally including the galvanometer scanner, the inert gas supplying nozzle and the fume suction duct; and a moving device configured to move the integration unit so the galvanometer scanner scans and irradiates the laser beam on a large irradiation region larger than the small irradiation region on the molding table; wherein the inert gas supplying opening and the fume suction opening are opposed to each other so an irradiation path of the laser beam is placed therebetween.

Three dimensional printer

A lamination molding apparatus, including: a chamber covering a desired molding region and being filled with an inert gas of predetermined concentration; a molding table configured to be vertically controllable in the chamber; a laser beam emitter to irradiate a predetermined irradiation region with a laser beam to form a sintered layer and irradiate a predetermined target irradiation position with the laser beam to form a sintered trace, the irradiation region being disposed on a material powder layer formed on the molding table for each of a plurality of divided layers obtained by dividing a desired three-dimensional object at a predetermined thickness.

A lamination shaping apparatus that is able to reduce machining errors in subsequent cutting while suppressing upsizing and cost increase compared to a conventional lamination shaping apparatus. A lamination shaping apparatus includes a pair of first horizontal movement mechanisms, a gantry disposed on the pair of first horizontal movement mechanisms, a second horizontal movement mechanism mounted on the gantry, and a machining head disposed on the second horizontal movement mechanism. A shaping table is disposed between the pair of first horizontal movement mechanisms. The second horizontal movement mechanism is disposed above the shaping table. The machining head includes a tool bit.

Laminate shaping apparatus

A lamination molding apparatus, including a chamber covering a molding region; a powder layer forming apparatus to form a material powder layer by discharging the material powder onto the molding region and planarizing the material powder on the molding region; a laser beam emitter to emit a laser beam for sintering the material powder to form a sintered body; a cutting machine to cut the sintered body; a horizontal drive device to move both the cutting machine and the powder layer forming apparatus in a horizontal direction parallel to the molding region; a first vertical drive device to reciprocate the cutting machine in a vertical direction orthogonal to the horizontal direction; and a second vertical drive device to reciprocate the powder layer forming apparatus in the vertical direction, is provided.

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Kanagawa, Japan

Shuji Okazaki