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<title>訓練與校正銑削係數 | HiAPI-C# 2025 </title>
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<h1 id="訓練與校正銑削係數">訓練與校正銑削係數</h1>
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<p>銑削係數為計算銑削力的必須參數。</p>
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<p>訓練與校正銑削係數需先完成<a href="../Mapping/index.html">資料映射</a>。</p>
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<p><code>TrainMillingPara</code>訓練銑削係數，不需先設定工件銑削係數，輸出的新係數也與原工件銑削係數無關。</p>
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<p><code>ReTrainMillingPara</code>校正銑削係數，需基於已設定之工件銑削係數，才可輸出校正後係數。校正時原係數的權重10%、從資訊映射而得的樣本權重90%。</p>
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<div class="NOTE">
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<h5>Note</h5>
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<p><strong>指令格式</strong></p>
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<pre><code>//訓練銑削係數
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TrainMillingPara(<樣本旗標>, <檔案輸出路徑>);
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//校正銑削係數
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ReTrainMillingPara(<樣本旗標>, <檔案輸出路徑>);
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</code></pre>
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</div>
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<p><樣本旗標> 為應用於訓練資料的資料種類，包含：<code>Fx</code>、<code>Fy</code>、<code>Fz</code>、<code>Mx</code>、<code>My</code>、<code>Mz</code>。
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使用<code>|</code>號作聯集。</p>
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<div class="TIP">
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<h5>Tip</h5>
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<p><strong>以動力計資料為例，輸出訓練銑削係數</strong></p>
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<pre><code>ClearTimeMappingData();
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AddTimeDataByFile( "lineA", "Mapping/sensor1.csv", "18:25:51.7100", "18:26:12.9910");
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AddTimeDataByFile( "lineB", "Mapping/sensor1.csv", "18:26:30.5750", "18:27:12.2880");
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PlayNcFile("NC/file1.nc")
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TrainMillingPara(Fx|Fy|Fz, "StainlessSteel.mp");
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</code></pre>
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</div>
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<div class="TIP">
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<h5>Tip</h5>
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<p><strong>以智慧刀把資料為例，輸出校正銑削係數</strong></p>
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<pre><code>ClearTimeMappingData();
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AddTimeDataByFile( "lineA", "Mapping/sensor1.csv", "18:25:51.7100", "18:26:12.9910");
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AddTimeDataByFile( "lineB", "Mapping/sensor1.csv", "18:26:30.5750", "18:27:12.2880");
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PlayNcFile("NC/file1.nc")
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ReTrainMillingPara(Fz|Mx|My|Mz, "StainlessSteel.mp");
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</code></pre>
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</div>
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<h2 id="訓練條件">訓練條件</h2>
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<p>路徑樣本<u>以穩定資料訓練佳</u>，即資料波形有重複性維持至少兩轉。因系統演算法最低以一轉波形做訓練。
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在非穩定情況，會因為模擬中的每刃進給固定、訓練資料不穩定，造成剪切力於總力占比降低，使得訓練出的犁切係數偏高。</p>
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<p>樣本穩定的情況下，NC路徑沒有限制切削形狀，槽銑或側銑，任意形狀刀具皆可用來訓練及校正銑削係數。</p>
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<p>以<code>TrainMillingPara</code>訓練銑削係數，資訊映射須包含至少一組不同每刃進給的路徑樣本。訓練資料的資料種類建議最少為(動力計)<code>Fx|Fy|Fz</code>或(智慧刀把)<code>Fz|Mx|My|Mz</code>。
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如果資料種類少於前述，如<code>Fx|Fy</code>或<code>Mx|My|Mz</code>，則樣本的自由度太高，訓練出來的係數不能符合訓練樣本以外的路徑。</p>
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<p>如果僅使用<code>Mx|My|Mz</code>，由於力矩資料為 <span class="math">\(\vec{r} \times \vec{F}\)</span>，所以r方向資料會遺失，相當於少了一個自由度，難以訓練材料系數。
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所以力矩資料須搭配<code>Fz</code>使用。</p>
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<p>以<code>ReTrainMillingPara</code>校正銑削係數，沒有限制資料種類及每刃進給。</p>
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