Hitachi, Ltd.

Takashi Hamaguchi

Makoto Onodera

Tadashi Fujieda

Masayuki Hariya

Michihito Watarai

Zixian Zhang

Shingo Noro

When the temperature history in a fine mesh is obtained for the entire modeled object, it takes a huge amount of time in calculation. In order to solve the problem, An additive-manufactured object design supporting device, comprising: an analysis unit configured to analyze a modeling process of a macro-region and a micro-region by using a product shape, a material condition, and a modeling condition of a modeled object as input; a temperature history extraction unit configured to extract, from a temperature analysis result of the macro-region, a local temperature history by referring to a database that stores a temperature history of the micro-region; a mapping unit configured to map a structure distribution obtained from a temperature history distribution of the modeled object to the modeled object; and an extraction unit configured to extract a defective structure that does not satisfy a structure condition by using an allowable structure condition as input.

Additive-manufactured object design supporting device and additive-manufactured object design supporting method

An input data creation device for powder additive manufacturing that can design and provide an appropriate support that avoids manufacturing failure. The device creates input data of a model in which a support is provided to a manufacturing designed object in powder additive manufacturing. The device includes a mechanical quantity calculation unit including a mechanism configured to calculate a mechanical quantity generated on a surface to which the support is provided in the manufacturing designed object; and a support shape determination unit including a mechanism configured to determine, based on information on a plurality of types of support shapes, information on an allowable mechanical quantity defined for each support shape, and a mechanical quantity calculated by the mechanical quantity calculation unit, an optimized support shape having an allowable mechanical quantity equal to or greater than the calculated mechanical quantity from among the plurality of types of support shapes.

Input data creation device for powder additive manufacturing

The insulation distance check device comprising: a unit which designates a high potential component, a conductive component and an insulation component to 3D CAD data; a unit which designates a distance condition; a unit which superimposes a layer surrounding the high potential component and creates a layer map associating the layer with a first distance; a unit which determines a second distance associated with the layer contacting with a portion of the conductive component, the second distance being a distance between the high potential component and the portion of the conductive component; a unit which compares the second distance and the distance condition; and a unit which displays at least one of a region occupied by the portion of the conductive component, on which the second distance having been determined to dissatisfy the distance condition is based; and a path connecting the high potential component and the conductive component.

Insulation distance check device

A fan device mounting structure is provided, which is capable of sufficiently suppressing transmission of vibrations in X, Y, and Z directions generated from a fan device, that is, all translational-direction vibrations and all axial-rotation-direction vibrations, to a chassis in which the fan device is mounted. The fan device mounting structure includes: a fan device; a chassisin which the fan deviceis mounted; and at least a pair of flat springs, each of which has its one end attached to the fan deviceand extending outwards from the fan deviceand bending and has the other end attached to outside a fan device located area, wherein both opposite faces of the fan devicefacing each other are supported by the respective flat springsand attached to the chassisat positions separate from each other.

Growing community of inventors

Tokyo, Japan

Takashi Hamaguchi