JP7068228B2 - 加工データの生成方法 - Google Patents
加工データの生成方法 Download PDFInfo
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- JP7068228B2 JP7068228B2 JP2019092646A JP2019092646A JP7068228B2 JP 7068228 B2 JP7068228 B2 JP 7068228B2 JP 2019092646 A JP2019092646 A JP 2019092646A JP 2019092646 A JP2019092646 A JP 2019092646A JP 7068228 B2 JP7068228 B2 JP 7068228B2
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Description
影響は大である。
加工対象物の全体寸法:>20mm、>50mmまたは>100mm、一方で<1000mmまたは<500mm。
クラッディング用レーザ出力:>500W、>1000Wまたは>2000W、一方で<20000Wまたは<10000W。
素材溶着速度:>0.1g/min、>0.5g/minまたは>2g/min、一方で<200g/minまたは<100g/min。
溶着素材:鉄、スチール、ニッケル合金、コバルト・クロム、ステライト、金属合金全般、セラミック。
目下加工中の箇所における溶着温度:スチール使用時1400~1600°C;セラミック使用時1100°C~2500°C。
目下加工中の箇所以外の加工対象物温度:>50°C、>100°Cまたは>200°C、一方で金属使用時<500°C。
加工対象物に対するレーザクラッディングヘッドの送り速度:>0.1m/分、>0.2m/分または>0.5m/分、一方で<5m/分または<2m/分。
Claims (9)
- クラッディング加工機において加工対象物をクラッディング加工で加工するための加工データ(34)を生成する方法であって、
(a)三次元での加工対象物の各部分又は各領域の温度に関する情報を所定の空間分解能で提供する温度関係データ(36)を決定する工程と、
(b)前記加工対象物は意図的に「大きめ」に加工されているが、加工データ(34)が冷却後の正確な寸法及び温度補償をもたらすように、前記温度関係データ(36)に基づいて前記加工データ(34)を生成する工程と、
を備える、方法。 - (c)加工すべき前記加工対象物が記述された加工対象物データ(33)、肉盛溶接の特性値データ(32)および他のパラメータに基づいて、時間軸に沿った加工の推移が反映された加工推移データ(35)が、前記加工推移データ(35)から決定される工程と、
(d)前記温度関係データ(36)が、前記加工対象物データ(33)、前記特性値データ(32)および前記加工推移データ(35)に基づいて、決定される工程と、
を備える、
請求項1に記載の方法。 - 前記(b)の工程は、
(b1)修正加工対象物データ(33’)が前記温度関係データ(36)に基づいて生成され、前記加工データ(34)が前記修正加工対象物データ(33’)および他のデータに基づいて生成される工程と、
(b2)修正加工データ(34’)が前記加工対象物データ(33)に基づいて生成され、前記特性値データが前記温度関係データ(36)に基づいて生成される工程と、
の少なくとも一方を含む、
請求項2に記載の方法。 - 前記(d)の工程において、
複数セットの前記温度関係データ(36)は、どれが複数の異なる前記加工推移データ(35)を反映するかを決定され、
複数セットの前記温度関係データ(36)は記憶され、かつ/または、複数セットの前記温度関係データ(36)は前記(b1)の工程で複数セットの前記修正加工対象物データ(33’)の生成に用いられ;複数セットの前記修正加工対象物データ(33’)は記憶され、かつ/または、複数セットの前記温度関係データ(36)は前記(b2)の工程で複数セットの前記修正加工データ(34’)の生成に用いられ;複数セットの前記修正加工データ(34’)は記憶される、
請求項3に記載の方法。 - (e)前記(d)の工程で決定された前記前記温度関係データ(36)を検証する工程をさらに備え、
前記(e)の工程において限界値が検出された場合には、選択可能パラメータデータは修正(31’)されて前記(c)の工程に戻って修正加工推移データ(35’)を生成し、前記修正加工推移データ(35’)に基づいて前記(d)の工程において修正温度関係データ(36’)が決定される、
請求項2に記載の方法。 - コンピュータ制御の工作機械において加工対象物を加工するためにクラッディングヘッドを用いて行うクラッディングの実施方法であって、
請求項1から請求項5のいずれかに記載の方法に従ってクラッディング用の加工データ(34)を生成する工程と、
前記加工データに基づいて前記工作機械を制御する工程と、
加工中に温度および加工対象物表面上の位置を所定の空間分解能で測定する工程と、
測定値をチェックする工程と、
前記チェックの結果に基づいて、前記クラッディングヘッドと前記加工対象物との間の相対送り速度、溶着熱出力、素材供給レート、素材供給速度およびレーザ集光度といった加工パラメータのうちの1つ以上を修正する工程と、
を備える、クラッディングの実施方法。 - 前記温度は、現在のクラッディング箇所で測定され、所定の温度または所定の温度範囲内に至る、
請求項6に記載の方法。 - 時間の流れに沿った加工の推移および/または前記加工対象物のこれまでの加工で得た温度データを、対応する目標値および/または目標範囲と比較し、逸脱が検出された場合には前記加工対象物のこれから先の加工のための修正加工データを生成する、
請求項6または請求項7に記載の方法。 - 前記工作機械において前記クラッディングヘッドと前記材料除去工具とを交換することにより、前記加工対象物の段取りを替えることなくレーザクラッディングと材料除去加工とが交互に実行される、
請求項6から請求項8のいずれかに記載の方法。
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