JPWO2020084715A1 - 積層造形方法、加工経路生成方法および積層造形装置 - Google Patents
積層造形方法、加工経路生成方法および積層造形装置 Download PDFInfo
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Abstract
Description
図1は、本発明の実施の形態1にかかる付加製造システム200の構成を示す図である。図2は、本発明の実施の形態1にかかるCAM(Computer Aided Manufacturing)装置110の構成を示すブロック図である。付加製造装置100は、ビームの照射によって溶融させた材料を被加工物の付加対象面へ付加する付加加工により3次元の立体造形物を製造する、DED方式の積層造形装置である。本実施の形態1において、ビームはレーザビーム24であって、材料はワイヤ状の造形材料である金属製のワイヤ5であるものとする。なお、ワイヤ状の造形材料は、金属以外の材料であってもよい。付加製造システム200は、付加製造装置100およびCAM装置110を備える。
本実施の形態2では、上述した実施の形態1において説明した積層造形方法で付加製造装置100の制御を実行するための加工経路を生成する加工経路生成方法について説明する。
本実施の形態3では、造形加工時にレーザビーム24の照射方向に見た場合に閉じた曲線により構成される他の形状を造形する場合の加工経路について説明する。図15は、図1に示した付加製造装置100により星形の造形を行う場合の加工経路の分割例を示す図である。図16は、図1に示した付加製造装置100により多角形の造形を行う場合の加工経路の分割例を示す図である。図17は、図1に示した付加製造装置100により造形を行うギア形状の一例を示す図である。図18は、図1に示した付加製造装置100により図17に示したギア形状における領域Aの造形を行う場合の加工経路の分割例を示す図である。
図19は、図1に示した付加製造装置100により造形した2本の線ビードの端部間の理想的な接続状態を示す模式断面図である。図20は、図1に示した付加製造装置100により造形した2本の線ビードの端部間が近すぎるために接続された線ビードの盛り上がり部73が生じた状態を示す模式断面図である。図21は、図1に示した付加製造装置100により造形した2本の線ビードの端部間が遠すぎるために線ビード同士間に隙間74が生じた状態を示す模式断面図である。
Claims (6)
- 付加対象面上の加工領域に柱状の造形材料を供給するノズルと、前記加工領域に供給された前記造形材料を溶融させるビームを前記加工領域に照射するビームノズルと、が非同軸に設けられた加工ヘッドを制御することにより付加加工を行う積層造形装置を用いた積層造形方法であって、
前記ビームの中心軸と前記柱状の造形材料の中心軸とを1つの鉛直面上に位置させて前記加工ヘッドが配置された状態で、所望の加工経路上に付加加工を行う際、前記ビームの照射方向に垂直な面に前記加工ヘッドの動作を投影した場合に前記加工領域に供給される前記柱状の造形材料の中心軸に沿う方向での前記加工ヘッドの移動方向が1方向となるように、前記加工経路を複数の分割加工経路に分割し、複数の前記分割加工経路の各々に沿って前記加工ヘッドを移動させて付加加工を行うこと、
を特徴とする積層造形方法。 - 付加対象面上の加工領域に柱状の造形材料を供給するノズルと、前記加工領域に供給された前記造形材料を溶融させるビームを前記加工領域に照射するビームノズルと、が非同軸に設けられた加工ヘッドを制御することにより付加加工を行う積層造形装置の加工経路を生成する加工経路生成方法であって、
造形対象形状を表す造形形状データを取得するステップと、
前記造形形状データから基本加工経路を生成するステップと、
前記ビームの照射方向に垂直な面に前記加工ヘッドの動作を投影した場合に、前記加工領域に供給される前記柱状の造形材料の中心軸に沿う方向での前記加工ヘッドの移動方向が1方向であるように前記基本加工経路から複数の分割加工経路のデータを生成するステップと、
を含むことを特徴とする加工経路生成方法。 - 前記複数の分割加工経路は、前記ビームの照射方向に垂直な面に前記加工ヘッドの動作を投影した場合に前記柱状の造形材料が供給される方向に対する前記加工ヘッドの進行方向の角度が、予め定められたヘッド許容角度の範囲内であること、
を特徴とする請求項2に記載の加工経路生成方法。 - 前記複数の分割加工経路のデータに、前記ビームの出力および前記柱状の造形材料の供給速度のうち少なくとも一方の増減を調整可能な調整機能のデータを付加するステップを有すること、
を特徴とする請求項2または3に記載の加工経路生成方法。 - 付加対象面上の加工領域に柱状の造形材料を供給するノズルと、前記加工領域に供給された前記造形材料を溶融させるビームを前記加工領域に照射するビームノズルと、が非同軸に設けられた加工ヘッドを制御することにより付加加工を行う積層造形装置であって、
前記ビームの中心軸と前記柱状の造形材料の中心軸とを1つの鉛直面上に位置させて前記加工ヘッドが配置された状態で、所望の加工経路上に付加加工を行う際、前記ビームの照射方向に垂直な面に前記加工ヘッドの動作を投影した場合に前記加工領域に供給される前記柱状の造形材料の中心軸に沿う方向での前記加工ヘッドの移動方向が1方向となるように、前記加工経路を複数の分割加工経路に分割し、複数の前記分割加工経路の各々に沿って前記加工ヘッドを移動させて付加製造を行うこと、
を特徴とする積層造形装置。 - 前記柱状の造形材料が、ワイヤ状の造形材料または粉末状の造形材料であること、
を特徴とする請求項5に記載の積層造形装置。
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JP6887755B2 (ja) | 2016-02-16 | 2021-06-16 | 株式会社神戸製鋼所 | 積層制御装置、積層制御方法及びプログラム |
WO2017180116A1 (en) * | 2016-04-13 | 2017-10-19 | Gkn Aerospace North America Inc. | System and method of additive manufacturing |
JP6626788B2 (ja) | 2016-04-15 | 2019-12-25 | マシン・ツール・テクノロジーズ・リサーチ・ファウンデーションMachine Tool Technologies Research Foundation | 制御データの生成方法、情報処理装置、工作機械、およびプログラム |
US10889098B2 (en) | 2016-04-15 | 2021-01-12 | Machine Tool Technologies Research Foundation | Method, data processing device, and machine tool for generating dimensional tool paths and control signals for material dispositioning |
JP6361846B1 (ja) * | 2017-03-31 | 2018-07-25 | 日本精工株式会社 | レーザ溶接装置、レーザ加工装置、レーザ溶接方法、軸受の製造方法、機械の製造方法、及び車両の製造方法 |
EP3575030B1 (en) * | 2017-03-31 | 2024-01-03 | NSK Ltd. | Laser welding device, laser processing device, laser welding method, bearing manufacturing method, machine manufacturing method, vehicle manufacturing method, bearing, machine, and vehicle |
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2018
- 2018-10-24 EP EP18903033.1A patent/EP3663032B8/en active Active
- 2018-10-24 US US17/278,663 patent/US11383327B2/en active Active
- 2018-10-24 CN CN201880098826.2A patent/CN112888525B/zh active Active
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CN112888525B (zh) | 2022-07-29 |
JP6552770B1 (ja) | 2019-07-31 |
EP3663032A1 (en) | 2020-06-10 |
US20210308796A1 (en) | 2021-10-07 |
EP3663032B8 (en) | 2024-05-22 |
CN112888525A (zh) | 2021-06-01 |
EP3663032B1 (en) | 2024-02-28 |
EP3663032A4 (en) | 2020-06-10 |
WO2020084715A1 (ja) | 2020-04-30 |
US11383327B2 (en) | 2022-07-12 |
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