JP2014105373A5

JP2014105373A5 - Metal powder, method for producing three-dimensional structure and method for producing molded product

Info

Publication number: JP2014105373A5
Application number: JP2012260954A
Authority: JP
Filing date: 2012-11-29
Publication date: 2016-01-21
Anticipated expiration: 2032-11-29

Description

上記の課題を解決する本発明の金属粉末は、Ｆｅを７１重量％以上７６重量％以下、Ｃｒを１０重量％以上１３重量％以下、Ｎｉを４重量％以上９重量％以下、Ｃｕを４重量％以上７重量％以下、Ｔｉを２重量％以上３重量％以下、Ｃｏを０重量％以上４重量％以下、Ｓｉを０重量％以上０．５重量％以下、Ｍｎを０重量％以上０．５重量％以下を含有し、且つＣｒ＋Ｎｉが１６重量％以上１９重量％以下、Ｃｕ＋Ｔｉ＋Ｃｏが８重量％以上９重量％以下、Ｓｉ＋Ｍｎが０重量％以上１重量％以下であることを特徴とする。 The metal powder of the present invention that solves the above problems is Fe 71 to 76 wt%, Cr 10 to 13 wt%, Ni 4 to 9 wt%, Cu 4 wt% % To 7% by weight, Ti to 2% to 3% by weight, Co to 0% to 4% by weight, Si to 0% to 0.5% by weight, Mn to 0% to 0.5%. 5% by weight or less, Cr + Ni is 16% by weight or more and 19% by weight or less, Cu + Ti + Co is 8% by weight or more and 9% by weight or less, and Si + Mn is 0% by weight or more and 1% by weight or less.

本発明の三次元造形物の製造方法は、上記の金属粉末に光ビームを照射して第一の焼結層を得る工程、前記第一の焼結層の上に前記金属粉末を形成して光ビームを照射して第二の焼結層を積層する工程を繰り返して三次元形状の造形物を得る工程を有することを特徴とする。 The method for producing a three-dimensional structure of the present invention includes a step of irradiating the metal powder with a light beam to obtain a first sintered layer, and forming the metal powder on the first sintered layer. It has the process of repeating the process of irradiating a light beam, and laminating | stacking a 2nd sintered layer, and obtaining the three-dimensional shaped molded article.

本発明の成形品の製造方法は、上記の三次元造形物の製造方法を用いて製造された射出成形用金型を用いて成形されることを特徴とする。 The method for producing a molded article according to the present invention is characterized by being molded using an injection molding die produced by using the above-described method for producing a three-dimensional structure .

Claims

Fe: 71 wt% or more, 76 wt% or less, Cr: 10 wt% or more, 13 wt% or less, Ni: 4 wt% or more, 9 wt% or less, Cu: 4 wt% or more, 7 wt% or less, Ti: 2 wt% or more 3 wt% or less, Co 0 wt% to 4 wt%, Si 0 wt% to 0.5 wt%, Mn 0 wt% to 0.5 wt%, and Cr + Ni 16 wt% % or more 19 wt% or less, Cu + Ti + Co 9 wt% 8 wt% or more or less, a metal powder wherein a Si + Mn is 1 wt% or less 0 wt% or more.

Metal powder according to claim 1, wherein the average particle diameter of the metal powder is 10μm or more 50μm or less.

A step of irradiating the metal powder according to claim 1 or 2 with a light beam to obtain a first sintered layer, forming the metal powder on the first sintered layer and irradiating the light beam with the light beam. A method for producing a three-dimensional structure by metal stereolithography, comprising a step of obtaining a three-dimensional shaped object by repeating the step of laminating the second sintered layer.

The three-dimensional structure is an injection mold, and in the method of laminating the sintered layer, a portion not irradiated with a light beam is formed on the sintered layer, and a portion not irradiated with the light beam is not sintered 4. The method for producing a three-dimensional structure according to claim 3, further comprising a step of removing the metal powder and forming a passage for allowing the medium to pass inside the injection mold.

The method for producing a three-dimensional structure according to claim 3 or 4, further comprising a step of performing at least one of a solution heat treatment and an age hardening heat treatment after the step of obtaining the three-dimensional structure .

A method for producing a molded product , characterized by being molded using an injection mold produced using the method for producing a three-dimensional structure according to claim 4 or 5 .