JP2007098822A - Method for shaping three dimensional formative article - Google Patents

Method for shaping three dimensional formative article Download PDF

Info

Publication number
JP2007098822A
JP2007098822A JP2005293235A JP2005293235A JP2007098822A JP 2007098822 A JP2007098822 A JP 2007098822A JP 2005293235 A JP2005293235 A JP 2005293235A JP 2005293235 A JP2005293235 A JP 2005293235A JP 2007098822 A JP2007098822 A JP 2007098822A
Authority
JP
Japan
Prior art keywords
material layer
modeling
formative
auxiliary material
dimensional
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2005293235A
Other languages
Japanese (ja)
Other versions
JP4639133B2 (en
Inventor
Masaki Yoshida
正樹 吉田
Motokuni Kinoshita
元邦 木下
Koji Kowada
功二 小和田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Roland DG Corp
Original Assignee
Roland DG Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Roland DG Corp filed Critical Roland DG Corp
Priority to JP2005293235A priority Critical patent/JP4639133B2/en
Publication of JP2007098822A publication Critical patent/JP2007098822A/en
Application granted granted Critical
Publication of JP4639133B2 publication Critical patent/JP4639133B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for shaping a three dimensional formative article which can improve the shaping accuracy of a three dimensional formative article to be made so as to prevent the formation of an interlaminar step such as a gap and a concave in a divided plane. <P>SOLUTION: In a method for shaping the three dimensional formative article comprising repeated steps of forming an auxiliary material layer by cutting an auxiliary material and forming a formative material layer by cutting a formative material, and a step of removing the auxiliary material layer thereafter in order to make a three dimensional formative article on which only a plurality of the formative material layers are laminated, when the auxiliary material layer is formed by cutting the auxiliary material supplied on the formative material layer, the auxiliary material layer is formed by cutting the auxiliary material to a region lower than a boundary between the formative material layer and the other formative material layer overlaid on the formative layer, when the formative material of the other formative material layer is supplied on the formative material layer, the formative material is supplied also to the auxiliary material layer cut to reach the lower region beyond the boundary, and when the other formative material layer is formed by cutting the formative material of the other formative material layer, the formative material is cut to reach the auxiliary material layer cut to reach the lower region beyond the boundary. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、三次元造形方法に関し、さらに詳細には、補助材料により形成される補助材層と造形材料により形成される造形材層とを用いて三次元造形物を作製する三次元造形方法に関する。   The present invention relates to a three-dimensional modeling method, and more particularly, to a three-dimensional modeling method for producing a three-dimensional model using an auxiliary material layer formed of an auxiliary material and a modeling material layer formed of a modeling material. .

従来より、例えば、水溶性の補助材料で形成された補助材層の所定部分を、エンドミルなどの切削ツールなどで切削して除去した後に、当該除去された部分に、例えば、水に不溶の光硬化性樹脂などの造形材料によって造形材層を形成して、これらを繰り返し行うことにより、二次元的な断面形状を積層させるようにして所望の三次元造形物を得ることができるようにした三次元造形装置が知られている(例えば、特許文献1を参照する)。   Conventionally, for example, after a predetermined portion of an auxiliary material layer formed of a water-soluble auxiliary material is removed by cutting with a cutting tool such as an end mill, the removed portion is subjected to, for example, light insoluble in water. By forming a modeling material layer with a modeling material such as a curable resin and repeating these, a tertiary that allows a desired three-dimensional model to be obtained by stacking two-dimensional cross-sectional shapes An original modeling apparatus is known (for example, refer to Patent Document 1).

ここで、図1(a)〜(g)に概念的に示す例を参照しながら、こうした三次元造形装置により実施されている従来の三次元造形方法について詳細に説明すると、まず、テーブル200上に補助材料を供給して当該供給された補助材料を切削ツール(図示せず。)により所望の形状に切削し、補助材層202を形成する(図1(a)参照)。   Here, referring to the examples conceptually shown in FIGS. 1A to 1G, a conventional 3D modeling method implemented by such a 3D modeling apparatus will be described in detail. First, on the table 200 An auxiliary material is supplied to the substrate, and the supplied auxiliary material is cut into a desired shape by a cutting tool (not shown) to form an auxiliary material layer 202 (see FIG. 1A).

次に、この補助材層202上に造形材料を供給し、当該供給された造形材料を切削ツール(図示せず。)により所望の形状に切削し、造形材層204を形成する(図1(b)参照)。   Next, a modeling material is supplied onto the auxiliary material layer 202, and the supplied modeling material is cut into a desired shape by a cutting tool (not shown) to form a modeling material layer 204 (FIG. 1 ( b)).

ここで、造形材層204を図1(b)に示すような形状に形成しても、造形材料の硬化時における膨張や収縮あるいは反りなどにより、図1(c)に示すように造形材層204の形状に変形が生じる。   Here, even if the modeling material layer 204 is formed in the shape as shown in FIG. 1B, the modeling material layer is formed as shown in FIG. 1C due to expansion, contraction, warpage, or the like when the modeling material is cured. The shape of 204 is deformed.

次に、上記のように変形した造形材層204上に補助材料を供給し(図1(d)参照)、当該供給された補助材料を切削ツール300により所望の形状に切削して補助材層206を形成する(図1(e)参照)。   Next, an auxiliary material is supplied onto the modeling material layer 204 deformed as described above (see FIG. 1D), and the supplied auxiliary material is cut into a desired shape by the cutting tool 300. 206 is formed (see FIG. 1E).

次に、上記において形成された造形材層204および補助材層206上に造形材料を供給し(図1(f)参照)、当該供給された造形材料を切削ツール300により所望の形状に切削し、造形材層208を形成する(図1(g)参照)。   Next, a modeling material is supplied onto the modeling material layer 204 and the auxiliary material layer 206 formed in the above (see FIG. 1F), and the supplied modeling material is cut into a desired shape by the cutting tool 300. Then, the modeling material layer 208 is formed (see FIG. 1G).

その後に、補助材層を除去することにより、造形材層のみが複数積層された三次元造形物を得ることができる。   Then, by removing the auxiliary material layer, a three-dimensional structure in which only a plurality of modeling material layers are stacked can be obtained.


上記したように、従来の三次元造形方法によれば、補助材層や造形材層を形成する際に所定の寸法通りに形成しても、補助材料や造形材料の硬化時における膨張や収縮あるいは反りなどにより、補助材層や造形材層の形状に変形が生じることがあった。

As described above, according to the conventional three-dimensional modeling method, even when the auxiliary material layer or the modeling material layer is formed according to a predetermined size, the auxiliary material or the modeling material is expanded or contracted during curing. Deformation may occur in the shape of the auxiliary material layer or the modeling material layer due to warpage or the like.

そして、こうした変形が生じると、造形材層のみが複数積層された三次元造形物が得られたときに、図2および図3に示すように、積層された造形材層間における境界(以下、「分割面」と適宜に称する。)に凹みや隙間などの積層段差を生じさせるという問題点があった。   And when such a deformation | transformation arises, as shown in FIG.2 and FIG.3, when the three-dimensional modeling object by which only the modeling material layer was laminated | stacked was obtained, the boundary (henceforth "" There is a problem in that a stacking step such as a dent or a gap is generated in the “divided surface” as appropriate.

また、補助材層と造形材層との摩擦抵抗の差異などに起因して、切削ツールが両者の境界を通過する際に分割面を切削ツールにより欠いてしまって不要な欠けを発生し、図2および図3に示すように、分割面に凹みや隙間などの積層段差を生じさせるという問題点があった
従って、従来の三次元造形方法によれば、上記した問題点のため、作製された三次元造形物の造形精度に劣るということが指摘されていた。
Also, due to the difference in frictional resistance between the auxiliary material layer and the modeling material layer, when the cutting tool passes the boundary between them, the split surface is missing by the cutting tool, causing unnecessary chipping. As shown in FIG. 2 and FIG. 3, there was a problem of causing a stacking step such as a dent or a gap on the dividing surface. Therefore, according to the conventional three-dimensional modeling method, it was produced due to the above-mentioned problems. It was pointed out that the modeling accuracy of the three-dimensional model was inferior.

なお、図2は、従来の三次元造形方法により作製された三次元造形物の分割面に生じた凹みや隙間などの積層段差の写真が示されており、図3は図2の拡大写真である。
特開平8−318573号公報
Note that FIG. 2 shows a photograph of a stacking step such as a dent or a gap formed on a split surface of a three-dimensional structure produced by a conventional three-dimensional modeling method, and FIG. 3 is an enlarged photograph of FIG. is there.
JP-A-8-318573

本発明は、上記したような従来の技術の有する種々の問題点に鑑みてなされたものであり、その目的とするところは、分割面における凹みや隙間などの積層段差の発生を防止して、作製する三次元造形物の造形精度を向上することを可能にした三次元造形方法を提供しようとするものである。   The present invention has been made in view of the various problems of the prior art as described above, and the object of the present invention is to prevent the occurrence of stacking steps such as dents and gaps on the dividing surface, It is an object of the present invention to provide a three-dimensional modeling method that can improve the modeling accuracy of a three-dimensional model to be produced.

上記目的を達成するために、本発明による三次元造形方法は、補助材料を切削して補助材層を形成する工程と造形材料を切削して造形材層を形成する工程とを繰り返し行った後に上記補助材層を除去し、上記造形材層のみが複数積層された三次元造形物を作製する三次元造形方法において、造形材層上に供給された補助材料を切削して補助材層を形成する際に、上記造形材層と上記造形層上に積層されることになる他の造形材層との境界よりも下方領域まで切削して補助材層を形成し、上記造形材層上に上記他の造形材層の造形材料を供給する際に、上記境界を越えて上記下方領域まで切削された補助材層上へも供給し、上記他の造形材層の造形材料を切削して上記他の造形材層を形成する際に、上記境界を越えて上記下方領域まで切削された補助材層に至るまで切削するようにしたものである。   In order to achieve the above object, the three-dimensional modeling method according to the present invention repeatedly performs the step of cutting the auxiliary material to form the auxiliary material layer and the step of cutting the modeling material to form the modeling material layer. In the three-dimensional modeling method of removing the auxiliary material layer and producing a three-dimensional structure in which only the modeling material layer is laminated, the auxiliary material supplied on the modeling material layer is cut to form the auxiliary material layer When forming the auxiliary material layer by cutting to the lower region than the boundary between the modeling material layer and the other modeling material layer to be laminated on the modeling layer, the above-mentioned modeling material layer When supplying the modeling material of the other modeling material layer, it is also supplied onto the auxiliary material layer cut to the lower region beyond the boundary, and the modeling material of the other modeling material layer is cut to the other When forming the modeling material layer, it is cut to the lower region beyond the boundary. It is obtained so as to cut down to the auxiliary material layer.

また、上記した本発明による三次元造形方法において、上記下方領域は、上記境界より0.2〜1.0mm下方に位置する領域であるようにしたものである。   In the three-dimensional modeling method according to the present invention, the lower region is a region located 0.2 to 1.0 mm below the boundary.

従って、本発明による三次元造形方法によれば、分割面に生じる凹みや隙間などの積層段差を補償して、作製する三次元造形物の造形精度を向上することができる。   Therefore, according to the three-dimensional modeling method according to the present invention, it is possible to improve the modeling accuracy of the three-dimensional model to be manufactured by compensating for the stacking steps such as the dents and gaps generated on the divided surfaces.

本発明は、以上において説明したように構成されているので、分割面における凹みや隙間などの積層段差の発生を防止することができ、作製する三次元造形物の造形精度の向上を図ることができるようになるという優れた効果を奏する。   Since the present invention is configured as described above, it is possible to prevent the occurrence of stacking steps such as dents and gaps on the dividing surface, and to improve the modeling accuracy of the three-dimensional structure to be manufactured. There is an excellent effect of being able to do it.

以下、添付の図面に基づいて、本発明による三次元造形方法の実施の形態の一例を詳細に説明するものとする。   Hereinafter, an example of an embodiment of a three-dimensional modeling method according to the present invention will be described in detail with reference to the accompanying drawings.

まず、図4および図5を参照しながら、本発明による三次元造形方法を実施する際に用いることが可能な三次元造形装置の一例について説明する。   First, an example of a three-dimensional modeling apparatus that can be used when implementing the three-dimensional modeling method according to the present invention will be described with reference to FIGS. 4 and 5.

この三次元造形装置10は、上下方向に延長した略四角柱状の一対の支持部12L、12Rと、当該支持部12L、12Rを連結する底部12Bとにより構成されたU字型状の門型アーム部12を備えている。さらに一対の支持部12L、12Rの各々の上端部に支持されたレール部14と、レール部14にXYZ直交座標系におけるX軸方向(図2の座標系を示す参考図参照)に所定範囲内で移動自在に配設されたキャリッジ16を有する。   The three-dimensional modeling apparatus 10 includes a U-shaped gate-shaped arm configured by a pair of substantially quadrangular columnar support portions 12L and 12R extending in the vertical direction and a bottom portion 12B connecting the support portions 12L and 12R. Part 12 is provided. Furthermore, the rail part 14 supported by the upper ends of each of the pair of support parts 12L and 12R, and the rail part 14 are within a predetermined range in the X-axis direction in the XYZ orthogonal coordinate system (see the reference diagram showing the coordinate system in FIG. 2). The carriage 16 is disposed so as to be freely movable.

また、キャリッジ16に対してZ軸方向に所定範囲内で移動自在に設けられたヘッド(図2および図3参照)に、スピンドル28と、補助材料を吐出するディスペンサー24と、造形材料を吐出するディスペンサー26とが併設されている。   Further, a spindle 28, a dispenser 24 for discharging an auxiliary material, and a modeling material are discharged to a head (see FIGS. 2 and 3) provided movably within a predetermined range in the Z-axis direction with respect to the carriage 16. A dispenser 26 is also provided.

また、フレーム部18上には、Y軸方向に所定範囲内で移動自在な上面が平面状のテーブル22が配設されており、この上面22aにおいて、補助材料により形成される補助材層と造形材料により形成される造形材層とが積層されて三次元造形物が形作られるものである。   Further, on the frame portion 18, a table 22 having a flat upper surface that is movable within a predetermined range in the Y-axis direction is disposed. On the upper surface 22a, an auxiliary material layer formed by an auxiliary material and a modeling process are provided. A modeling material layer formed of the material is laminated to form a three-dimensional modeled object.

なお、三次元造形装置10は、全体の動作をマイクロコンピュータにより制御されており、ディスペンサー24、ディスペンサー26ならびにスピンドル28は、ヘッドの移動に伴ってZ軸方向に、キャリッジ16の移動に伴ってX軸方向に、またテーブル22は、Y軸方向に移動される。   Note that the entire operation of the three-dimensional modeling apparatus 10 is controlled by a microcomputer. The dispenser 24, the dispenser 26, and the spindle 28 are moved in the Z-axis direction along with the movement of the head and X along with the movement of the carriage 16. The table 22 is moved in the axial direction and in the Y-axis direction.

従って、ディスペンサー24、ディスペンサー26ならびにスピンドル28に支持されたエンドミル30と、テーブル上面22aにおいて形作られる三次元造形物との相対的な位置関係は、X,Y,Z軸方向の任意の方向で移動可能となっている。   Accordingly, the relative positional relationship between the end mill 30 supported by the dispenser 24, the dispenser 26 and the spindle 28 and the three-dimensional structure formed on the table upper surface 22a moves in any direction in the X, Y, and Z axis directions. It is possible.

次に、図5には、図4に示す三次元造形装置10のキャリッジ16部分を拡大して示した概略構成説明図(斜視図)が示されており、以下に詳細な説明を示す。   Next, FIG. 5 shows a schematic configuration explanatory view (perspective view) in which the carriage 16 portion of the three-dimensional modeling apparatus 10 shown in FIG. 4 is enlarged, and detailed description will be given below.

ディスペンサー24は、図示しないタンクに収容された補助材料がヒーターを内蔵したシリンジ24bに供給されるように設計されており、シリンジ内部に貯留された補助材料を所定の温度に加熱することができる。   The dispenser 24 is designed so that auxiliary material accommodated in a tank (not shown) is supplied to the syringe 24b with a built-in heater, and can heat the auxiliary material stored in the syringe to a predetermined temperature.

なお、この実施の形態においては、補助材料として金属、特に、低融点合金を用いている。例えば、半田などである。   In this embodiment, a metal, particularly a low melting point alloy is used as an auxiliary material. For example, solder.

所定の温度まで加熱された低融点合金は、シリンジ24b内で溶融し、シリンジ24bと連結されてディスペンサー24の先端に位置する吐出口24aから1滴1滴吐出され、飛滴となって所定の位置に所定量塗布されるように制御されている。   The low melting point alloy heated to a predetermined temperature is melted in the syringe 24b, connected to the syringe 24b and discharged from the discharge port 24a located at the tip of the dispenser 24, and drops into a predetermined droplet. It is controlled so that a predetermined amount is applied to the position.

ディスペンサー26は、図示しないタンクに収容された造形材料がシリンジ26bに供給されるように設計されており、シリンジ26bと連結されてディスペンサー26の先端に位置する吐出口26aから、造形材料が1滴1滴吐出され、飛滴となって所定の位置に所定量塗布されるように制御されている。   The dispenser 26 is designed so that the modeling material accommodated in a tank (not shown) is supplied to the syringe 26b. One drop of the modeling material is connected to the syringe 26b from the discharge port 26a located at the tip of the dispenser 26. It is controlled so that a single droplet is ejected and applied to a predetermined position as a flying droplet.

なお、この実施の形態においては、造形材料としては紫外線が照射されると硬化する紫外線硬化樹脂を用いている。   In this embodiment, an ultraviolet curable resin that cures when irradiated with ultraviolet rays is used as the modeling material.

さらに、ディスペンサー26の吐出口26aの外周側に位置するようにしてライトガイド部材42が配設されている。このライトガイド部材42は、導入管部42cから引き込まれた紫外線を照射するための光ファイバー50が連結部42bを経てその先端部を傾斜面42sに位置させるように設計されている。このため、光ファイバー50の先端部から照射される紫外線は360°リング状に照射されて、本体部42aの略中央部位に穿設された貫通口42hの直下にスポット状に集光される。   Further, a light guide member 42 is disposed so as to be positioned on the outer peripheral side of the discharge port 26a of the dispenser 26. The light guide member 42 is designed such that the optical fiber 50 for irradiating the ultraviolet rays drawn from the introduction tube portion 42c is positioned on the inclined surface 42s through the connecting portion 42b. For this reason, the ultraviolet rays irradiated from the distal end portion of the optical fiber 50 are irradiated in a 360 ° ring shape, and are condensed in a spot shape immediately below the through-hole 42h drilled in a substantially central portion of the main body portion 42a.

従って上記のように、ディスペンサー26の吐出口26aより所定の位置に塗布された紫外線硬化樹脂は、ライトガイド部材42より照射する紫外線により硬化させることができるように制御されている。   Therefore, as described above, the ultraviolet curable resin applied at a predetermined position from the discharge port 26a of the dispenser 26 is controlled so as to be cured by the ultraviolet rays irradiated from the light guide member 42.

エンドミル30は回転するスピンドル28に連結され、切削部30aによって補助材層や造形材層を切削成形するものである。   The end mill 30 is connected to a rotating spindle 28 and cuts an auxiliary material layer and a modeling material layer by a cutting portion 30a.


以上の構成において、図4および図5とともに図6(a)〜(f)に概念的に示す例を参照しながら、上記した三次元造形装置10を用いて本発明の三次元造形方法により、三次元造形物を作製する工程を詳細に説明する。

In the above configuration, referring to the example conceptually shown in FIGS. 6A to 6F together with FIGS. 4 and 5, the three-dimensional modeling method of the present invention using the three-dimensional modeling apparatus 10 described above, The process of producing a three-dimensional structure will be described in detail.

まず、テーブル22の上面22aと所定の間隔を開けて位置するディスペンサー24の吐出口24aから、マイクロコンピュータの制御によってテーブル上面22aの所定の位置に補助材料である低融点合金の飛滴を略ドット状で供給する。供給された補助材料が自然冷却により固化すると、固化した補助材料をエンドミル30によって所望の形状に切削して仕上げ、補助材層102を形成する(図6(a)参照)。   First, droplets of a low-melting-point alloy, which is an auxiliary material, are substantially dot-formed to a predetermined position on the table upper surface 22a from a discharge port 24a of the dispenser 24 that is positioned at a predetermined interval from the upper surface 22a of the table 22. Supply in the form. When the supplied auxiliary material is solidified by natural cooling, the solidified auxiliary material is cut into a desired shape by the end mill 30 and finished to form the auxiliary material layer 102 (see FIG. 6A).

次に、補助材層102の上面102aと所定の間隔を開けて位置するディスペンサー26の吐出口26aから、マイクロコンピュータの制御によって補助材層102上の所定の位置に造形材料である紫外線硬化樹脂の飛滴を略ドット状で供給する。この際、上記したようにライトガイド部42により紫外線を照射して、紫外線硬化樹脂の硬化を同時に行う。そして、硬化した造形材料をエンドミル30によって所望の形状に切削して仕上げ、造形材層104を形成する(図6(b)参照)。   Next, an ultraviolet curable resin, which is a modeling material, is placed at a predetermined position on the auxiliary material layer 102 from a discharge port 26a of the dispenser 26, which is positioned at a predetermined distance from the upper surface 102a of the auxiliary material layer 102, under the control of the microcomputer. The droplets are supplied in the form of dots. At this time, as described above, the light guide portion 42 irradiates ultraviolet rays to simultaneously cure the ultraviolet curable resin. Then, the cured modeling material is cut into a desired shape by the end mill 30 and finished to form the modeling material layer 104 (see FIG. 6B).

次に、上記した造形材層104上に補助材料を上記と同様にして供給して固化する(図6(c)参照)。そして、エンドミル30によって、固化した補助材料を分割面よりさらに下方領域まで切削して補助材層106を形成する(図6(d)参照)。即ち、造形材層104上に供給された補助材料を切削して補助材層106を形成する際には、造形材層104と当該造形材層104上に積層されることになる造形材層108との境界たる分割面よりも下方領域まで切削して補助材層106を形成する。なお、造形材層104上に供給された補助材料を切削して補助材層106を形成する場合に、造形材層104と当該造形材層104上に積層されることになる造形材層108との境界たる分割面よりも下方領域は、分割面より距離Lだけ下方に位置する領域である。   Next, the auxiliary material is supplied onto the modeling material layer 104 in the same manner as described above and solidified (see FIG. 6C). Then, the auxiliary material layer 106 is formed by cutting the solidified auxiliary material to a region further below the dividing surface by the end mill 30 (see FIG. 6D). That is, when the auxiliary material supplied on the modeling material layer 104 is cut to form the auxiliary material layer 106, the modeling material layer 104 and the modeling material layer 108 to be laminated on the modeling material layer 104 are formed. The auxiliary material layer 106 is formed by cutting to a region below the dividing surface that is the boundary. In addition, when the auxiliary material supplied on the modeling material layer 104 is cut to form the auxiliary material layer 106, the modeling material layer 104 and the modeling material layer 108 to be laminated on the modeling material layer 104 The region below the dividing surface that is the boundary of is a region that is located below the dividing surface by a distance L.

ここで、距離Lは、本願発明者の実験によれば、例えば、0.2〜1.0mmであることが好ましく、より好ましくは0.5mmである。   Here, according to the experiment of the present inventors, the distance L is preferably 0.2 to 1.0 mm, and more preferably 0.5 mm, for example.

次に、上記において形成された造形材層104および補助材層106上に造形材料を供給し、造形材料を上記と同様にして固化する(図6(e)参照)。この際に、造形材料を分割面より下まで盛ることにより、造形材層104ならびに補助材層106における欠けや変形に伴って分割面に生じる凹みや隙間などの積層段差を補償する。即ち、造形材層104上に造形材層108の造形材料を供給する際には、分割面を越えて下方領域まで切削された補助材層106上へも供給し、分割面における凹みや隙間などの発生を防止する。   Next, a modeling material is supplied onto the modeling material layer 104 and the auxiliary material layer 106 formed above, and the modeling material is solidified in the same manner as described above (see FIG. 6E). At this time, stacking steps such as dents and gaps generated in the divided surface due to chipping or deformation in the modeling material layer 104 and the auxiliary material layer 106 are compensated by stacking the modeling material below the dividing surface. That is, when the modeling material of the modeling material layer 108 is supplied onto the modeling material layer 104, the modeling material is also supplied onto the auxiliary material layer 106 that has been cut to the lower region beyond the dividing surface, and dents and gaps on the dividing surface, etc. Preventing the occurrence of

次に、固化した造形材料をエンドミル30により所望の形状に切削し、造形材層108を形成する(図6(f)参照)。即ち、造形材層108の造形材料を切削して造形材層108を形成する際には、分割面を越えて下方領域まで切削された補助材層106に至るまで切削する。   Next, the solidified modeling material is cut into a desired shape by the end mill 30 to form the modeling material layer 108 (see FIG. 6F). That is, when the modeling material layer 108 is formed by cutting the modeling material of the modeling material layer 108, the modeling material layer 108 is cut to reach the auxiliary material layer 106 that has been cut to the lower region beyond the dividing surface.


ここで、図7には、本発明による三次元造形方法により作製された三次元造形物の分割面の写真が示されている。この図7の写真に示されているように、本発明による三次元造形方法により形成された三次元造形物の分割面には凹みや隙間などの積層段差がなく、作製された三次元造形物の造形精度が著しく向上している。

Here, FIG. 7 shows a photograph of the divided surface of the three-dimensional structure produced by the three-dimensional structure forming method according to the present invention. As shown in the photograph of FIG. 7, the divided surface of the three-dimensional structure formed by the three-dimensional structure forming method according to the present invention has no stacking step such as a dent and a gap, and the three-dimensional structure manufactured. The molding accuracy is significantly improved.


なお、上記した実施の形態は、以下の(1)乃至(4)に説明するように変形してもよい。

The embodiment described above may be modified as described in the following (1) to (4).

(1)上記した実施の形態においては、補助材料として低融点合金を用い、造形材料として紫外線硬化樹脂を用いるようにしたが、これに限られるものではないことは勿論であり、各種材料を補助材料あるは造形材料として用いるようにしてもよい。   (1) In the above embodiment, a low melting point alloy is used as an auxiliary material and an ultraviolet curable resin is used as a modeling material. However, the present invention is not limited to this, and various materials are supported. It may be used as a material or as a modeling material.

例えば、補助材料としては、ワックスなどの熱可塑性樹脂を用いるようにしてもよいし、造形材料としては、紫外線とは異なる放射線の可視光や電子線あるいはその他の光によって硬化する光硬化樹脂や、補助材料と同様にワックスなどの熱可塑性樹脂を用いるようにしてもよい。   For example, as an auxiliary material, a thermoplastic resin such as wax may be used, and as a modeling material, a photo-curing resin that is cured by visible light, electron beam, or other light of radiation different from ultraviolet rays, Similarly to the auxiliary material, a thermoplastic resin such as wax may be used.

(2)上記した実施の形態においては、補助材料と造形材料とがいずれも略ドット状で供給されるようにしたが、これに限られるものではないことは勿論であり、補助材料のみ、あるいは、造形材料のみが、略ドット状で供給されるようにしても、材料を高精度に塗布することができるものである。また、補助材料や造形材料の種類や塗布する範囲などに応じて、略ドット状とは異なる手法、例えば、線状に塗布したり、あるいは、所定量を流し込むように塗布してもよい。   (2) In the above-described embodiment, the auxiliary material and the modeling material are both supplied in a substantially dot shape. However, the present invention is not limited to this, and only the auxiliary material or Even if only the modeling material is supplied in a substantially dot shape, the material can be applied with high accuracy. Also, depending on the type of auxiliary material and modeling material, the range to be applied, etc., a method different from a substantially dot shape, for example, a linear shape or a predetermined amount may be applied.

(3)上記した実施の形態においては、図2ならびに図3に示す三次元造形装置10を用いるようにしたが、これに限られるものではないことは勿論であり、三次元造形装置10に各種構成を付加したり、あるいは、その他の造形装置を用いるようにしてもよい。   (3) In the above-described embodiment, the 3D modeling apparatus 10 shown in FIG. 2 and FIG. 3 is used. However, the present invention is not limited to this. You may make it add a structure or use another modeling apparatus.

従って、エンドミル30とは異なるカッターなどのその他の切削ツールを用いたり、作製する三次元造形物とディスペンサー24,26などとの相対的な位置関係を三次元方向で変化させる構成も各種採用可能なものである。また、補助材料によって形成された部分を取り除いて三次元造形物を得る工程が、造形装置内のシステムにおいて実施されるようにしてもよい。   Therefore, various configurations such as using other cutting tools such as a cutter different from the end mill 30 or changing the relative positional relationship between the three-dimensional structure to be produced and the dispensers 24 and 26 in the three-dimensional direction can be employed. Is. Moreover, the process of removing the part formed with the auxiliary material to obtain a three-dimensional structure may be performed in a system in the modeling apparatus.

(4)上記した実施の形態ならびに上記(1)乃至(3)に示す変形例は、適宜に組み合わせるようにしてもよい。   (4) You may make it combine the above-mentioned embodiment and the modification shown in said (1) thru | or (3) suitably.

本発明は、試作や量産での部品製作やデザインモデルを製作する際、モデリングマシンなど三次元加工装置や、ツールによって切削などを行う二次元彫刻装置などにおいて利用することができる。   The present invention can be used in a three-dimensional processing apparatus such as a modeling machine, a two-dimensional engraving apparatus that performs cutting with a tool, or the like when producing parts or design models in trial production or mass production.

図1(a)(b)(c)(d)(e)(f)(g)は、三次元造形装置により実施されている従来の三次元造形方法の概念的な説明図である。1 (a), (b), (c), (d), (e), (f), and (g) are conceptual explanatory views of a conventional three-dimensional modeling method implemented by a three-dimensional modeling apparatus. 図2は、従来の三次元造形方法により作製された三次元造形物の分割面に生じた凹みや隙間などの積層段差を撮影した写真である。FIG. 2 is a photograph of a layered step such as a dent or a gap formed on a split surface of a three-dimensional structure produced by a conventional three-dimensional modeling method. 図3は、図2の拡大写真である。FIG. 3 is an enlarged photograph of FIG. 図4は、本発明による三次元造形方法を実施する際に用いることが可能な三次元造形装置の一例を示す概略構成説明図である。FIG. 4 is a schematic configuration explanatory diagram illustrating an example of a three-dimensional modeling apparatus that can be used when the three-dimensional modeling method according to the present invention is performed. 図5は、図4に示す三次元造形装置のキャリッジ部分を拡大して示した概略構成説明図(斜視図)である。FIG. 5 is an explanatory schematic diagram (perspective view) showing an enlarged view of the carriage portion of the three-dimensional modeling apparatus shown in FIG. 図6(a)(b)(c)(d)(e)(f)は、本発明による三次元造形方法の概念的な説明図である。6A, 6B, 6C, 6D, 6E, and 6F are conceptual explanatory views of the three-dimensional modeling method according to the present invention. 図7は、本発明による三次元造形方法により作製された三次元造形物の分割面を撮影した写真である。FIG. 7 is a photograph taken of a split surface of a three-dimensional structure produced by the three-dimensional modeling method according to the present invention.

符号の説明Explanation of symbols

10 三次元造形装置
12 門型アーム部
14 レール部
16 キャリッジ
18 フレーム部
22 テーブル
24 ディスペンサー
26 ディスペンサー
28 スピンドル
30 エンドミル
42 ライトガイド部材
50 光ファイバー
102 補助材層
104 造形材層
106 補助材層
108 造形材層
200 テーブル
202 補助材層
204 造形材層
206 補助材層
208 造形材層
300 切削ツール
DESCRIPTION OF SYMBOLS 10 3D modeling apparatus 12 Gate type arm part 14 Rail part 16 Carriage 18 Frame part 22 Table 24 Dispenser 26 Dispenser 28 Spindle 30 End mill 42 Light guide member 50 Optical fiber 102 Auxiliary material layer 104 Modeling material layer 106 Auxiliary material layer 108 Modeling material layer 200 Table 202 Auxiliary Material Layer 204 Modeling Material Layer 206 Auxiliary Material Layer 208 Modeling Material Layer 300 Cutting Tool

Claims (2)

補助材料を切削して補助材層を形成する工程と造形材料を切削して造形材層を形成する工程とを繰り返し行った後に前記補助材層を除去し、前記造形材層のみが複数積層された三次元造形物を作製する三次元造形方法において、
造形材層上に供給された補助材料を切削して補助材層を形成する際に、前記造形材層と前記造形層上に積層されることになる他の造形材層との境界よりも下方領域まで切削して補助材層を形成し、
前記造形材層上に前記他の造形材層の造形材料を供給する際に、前記境界を越えて前記下方領域まで切削された補助材層上へも供給し、
前記他の造形材層の造形材料を切削して前記他の造形材層を形成する際に、前記境界を越えて前記下方領域まで切削された補助材層に至るまで切削する
ことを特徴とする三次元造形方法。
After repeatedly performing the process of cutting the auxiliary material to form the auxiliary material layer and the process of cutting the modeling material to form the modeling material layer, the auxiliary material layer is removed, and only a plurality of the modeling material layers are laminated. In a three-dimensional modeling method for producing a three-dimensional model,
When forming the auxiliary material layer by cutting the auxiliary material supplied on the modeling material layer, it is below the boundary between the modeling material layer and the other modeling material layer to be laminated on the modeling layer. Cut to the area to form an auxiliary material layer,
When supplying the modeling material of the other modeling material layer on the modeling material layer, supplying the auxiliary material layer cut to the lower region beyond the boundary,
When forming the other modeling material layer by cutting the modeling material of the other modeling material layer, cutting is performed until the auxiliary material layer is cut to the lower region beyond the boundary. Three-dimensional modeling method.
請求項1に記載の三次元造形方法において、
前記下方領域は、前記境界より0.2〜1.0mm下方に位置する領域である
ことを特徴とする三次元造形方法。
In the three-dimensional modeling method according to claim 1,
The lower region is a region located 0.2 to 1.0 mm below the boundary.
JP2005293235A 2005-10-06 2005-10-06 3D modeling method Expired - Fee Related JP4639133B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005293235A JP4639133B2 (en) 2005-10-06 2005-10-06 3D modeling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005293235A JP4639133B2 (en) 2005-10-06 2005-10-06 3D modeling method

Publications (2)

Publication Number Publication Date
JP2007098822A true JP2007098822A (en) 2007-04-19
JP4639133B2 JP4639133B2 (en) 2011-02-23

Family

ID=38026235

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005293235A Expired - Fee Related JP4639133B2 (en) 2005-10-06 2005-10-06 3D modeling method

Country Status (1)

Country Link
JP (1) JP4639133B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017132092A (en) * 2016-01-26 2017-08-03 株式会社ノリタケカンパニーリミテド Slurry for lamination molding and method for manufacturing three-dimensional laminated molding
JP2019136990A (en) * 2018-02-14 2019-08-22 セイコーエプソン株式会社 Manufacturing method of three-dimensional shaped article and three-dimensional shaping apparatus
JP2020026549A (en) * 2018-08-10 2020-02-20 セイコーエプソン株式会社 Manufacturing method of metal shaped article

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004160830A (en) * 2002-11-13 2004-06-10 Roland Dg Corp Method and equipment for three-dimensional shaping
JP2005103734A (en) * 2003-10-01 2005-04-21 Roland Dg Corp Three-dimensional molding device and method
JP2006248039A (en) * 2005-03-10 2006-09-21 Roland Dg Corp Three-dimensional shaping method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004160830A (en) * 2002-11-13 2004-06-10 Roland Dg Corp Method and equipment for three-dimensional shaping
JP2005103734A (en) * 2003-10-01 2005-04-21 Roland Dg Corp Three-dimensional molding device and method
JP2006248039A (en) * 2005-03-10 2006-09-21 Roland Dg Corp Three-dimensional shaping method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017132092A (en) * 2016-01-26 2017-08-03 株式会社ノリタケカンパニーリミテド Slurry for lamination molding and method for manufacturing three-dimensional laminated molding
JP2019136990A (en) * 2018-02-14 2019-08-22 セイコーエプソン株式会社 Manufacturing method of three-dimensional shaped article and three-dimensional shaping apparatus
JP7087430B2 (en) 2018-02-14 2022-06-21 セイコーエプソン株式会社 Manufacturing method of 3D model and 3D modeling device
US11623392B2 (en) 2018-02-14 2023-04-11 Seiko Epson Corporation Method of manufacturing three-dimensional formed object and three-dimensional forming apparatus
JP2020026549A (en) * 2018-08-10 2020-02-20 セイコーエプソン株式会社 Manufacturing method of metal shaped article
JP7119746B2 (en) 2018-08-10 2022-08-17 セイコーエプソン株式会社 Manufacturing method of metal molding
US11426796B2 (en) 2018-08-10 2022-08-30 Seiko Epson Corporation Metal shaped article production method

Also Published As

Publication number Publication date
JP4639133B2 (en) 2011-02-23

Similar Documents

Publication Publication Date Title
KR101606426B1 (en) Production method for three-dimensionally shaped molded object
US6861613B1 (en) Device and method for the preparation of building components from a combination of materials
KR102126243B1 (en) Production method and production device for three-dimensionally shaped molded object
CN106061717B (en) The manufacturing method of three dimensional structure
EP2319641B1 (en) Method to apply multiple materials with selective laser melting on a 3D article
KR101648442B1 (en) Method of manufacturing three-dimensional sculpture
JP2018012336A (en) Three-dimensional laminate molding device, control method of three-dimensional laminate molding device and control program of three-dimensional laminate molding device
JP2005319634A (en) Three-dimensional shaping apparatus and three-dimensional shaping method
KR20150023539A (en) Method for manufacturing three-dimensional molding
JP6384826B2 (en) Three-dimensional additive manufacturing apparatus, three-dimensional additive manufacturing method, and three-dimensional additive manufacturing program
KR20180021186A (en) Method for manufacturing three dimensional shaped sculpture
EP3427870B1 (en) Three-dimensional molded object production method
JP6836097B2 (en) Manufacturing method of 3D model and manufacturing equipment of 3D model
JP2017077683A (en) Three-dimensional molding system and method for manufacturing three-dimensional molded object
JP6200599B1 (en) Control method for three-dimensional additive manufacturing apparatus, control method for three-dimensional additive manufacturing apparatus, and control program for three-dimensional additive manufacturing apparatus
JP2007204828A (en) Surface finishing method for three-dimensional stacked shaped article
JP2017128770A (en) Method for producing metallic member
KR101722979B1 (en) An Manufacturing Method of 3 Dimensional Shape
US20180200795A1 (en) Method for manufacturing three-dimensional shaped object and three-dimensional shaped object
JP4639133B2 (en) 3D modeling method
JP2007021705A (en) Three-dimensional molding method and device
US20180243987A1 (en) System and method for additively manufacturing an article incorporating materials with a low tear strength
JP2006248039A (en) Three-dimensional shaping method
KR102012691B1 (en) Method for manufacturing three dimensional shapes using laser and powder
JP6731642B2 (en) Method for manufacturing three-dimensional shaped object

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080903

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20100930

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20101109

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20101129

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131203

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 4639133

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees