LMD Inconel 718 Spiral 2020-07-31 left
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Description of dataset 10.5281/zenodo.4061502 Deposition of Inconel 718 square spiral with process parameters:<br> - Nominal power = 300 (W)<br> - Nominal velocity = 600 (mm/min)<br> - Powder flux = 0.0825 (g/s)<br> - Spiral size: 60 mm side, 3 mm step<br> - Nr. nozzles = 4<br> - Argon carrier flux = 4 (l/min)<br> - Argon shielding gas flux = 15 (l/min)<br> - Substrate temperature = Ambient This experiment took place on the same substrate of 10.5281/zenodo.4049842 (on the "left") and follows the same part program. In this case, the laser spot is slightly off-center in camera images. The dataset is constituted by:<br> - Melt pool images, in file Deposition_2020_07_31__13_09_50.zip, acquired at 200fps with 850 nm narrow band filter, 1ms exposure time. 400x400 px size<br> - trackData_20200731_left.csv containing:<br> - t: timestamp in ms. Synchronized with imData_20200731_left.csv<br> - Xpos: laser spot X position in workspace<br> - Ypos: laser spot Y position in workspace<br> - Zpos: laser spot Z position in workspace<br> - G1: binary signal indicating active deposition (G1=1) or not<br> - D: track width measured at [Xpos(t), Ypos(t), Zpos(t)]<br> - H: track heigth measured at [Xpos(t), Ypos(t), Zpos(t)]<br> - A: track section area measured at [Xpos(t), Ypos(t), Zpos(t)]<br> - sdres: roughness index of section profile (std. deviation w.r.t. smoothed profile)<br> - Vnom: laser spot translational speed in m/s (computed from Xpos, Ypos, Zpos and t data)<br> - Pnom: nominal power<br> - V: Vnom in mm/min<br> - imData_20200731_left.csv containing:<br> - t: timestamp in ms. Synchronized with trackData_20191205_left.csv (some frames may have been lost)<br> - I_mean: mean image intensity (only on red channel)<br> - I_mean_crop: mean image intensity computed on central cropped image area (180x180 pixels)<br> - M_I_mean: I_mean after application of 8-sample moving average<br> - M_I_mean_crop: I_mean_crop after application of 8-sample moving average<br> - fileName: associated image file name<br> - beamON: laserON signal obtained from thresholding on images (background noise = off, minimal intensity level = on)
数据集10.5281/zenodo.4061502说明：采用如下工艺参数沉积Inconel 718（因科奈尔718）方形螺旋件： - 额定功率 = 300（W，瓦） - 额定移动速度 = 600（mm/min，毫米/分钟） - 送粉速率 = 0.0825（g/s，克/秒） - 螺旋尺寸：边长60mm，层间步距3mm - 喷嘴数量 = 4 - 氩气载气流量 = 4（l/min，升/分钟） - 氩气保护气流量 = 15（l/min，升/分钟） - 基板温度：室温 本实验与数据集10.5281/zenodo.4049842使用同一块基板（位于左侧区域），且采用相同的加工程序。本次实验中，相机采集的图像内激光光斑略微偏离中心。 本数据集由以下内容构成： 1. 熔池图像：存储于Deposition_2020_07_31__13_09_50.zip压缩包中，采集帧率为200fps，使用850nm窄带滤光片，曝光时长1ms，图像分辨率为400×400像素。 2. trackData_20200731_left.csv文件，包含如下字段： - t：时间戳，单位为毫秒，与imData_20200731_left.csv文件时间同步 - Xpos：激光光斑在工作空间中的X轴位置 - Ypos：激光光斑在工作空间中的Y轴位置 - Zpos：激光光斑在工作空间中的Z轴位置 - G1：二进制信号，用于标识沉积状态：G1=1时为有效沉积，反之则非 - D：对应[Xpos(t), Ypos(t), Zpos(t)]位置处的熔道宽度 - H：对应[Xpos(t), Ypos(t), Zpos(t)]位置处的熔道高度 - A：对应[Xpos(t), Ypos(t), Zpos(t)]位置处的熔道截面积 - sdres：熔道截面轮廓的粗糙度指标（即与平滑轮廓间的标准差） - Vnom：由Xpos、Ypos、Zpos及t数据计算得到的激光光斑平移速度，单位为m/s（米/秒） - Pnom：额定功率 - V：以mm/min（毫米/分钟）为单位的Vnom数值 3. imData_20200731_left.csv文件，包含如下字段： - t：时间戳，单位为毫秒，与trackData_20191205_left.csv文件时间同步（可能存在部分帧丢失） - I_mean：图像红色通道的平均灰度值 - I_mean_crop：对图像中心裁剪区域（180×180像素）计算得到的平均灰度值 - M_I_mean：对I_mean应用8样本移动平均滤波后的结果 - M_I_mean_crop：对I_mean_crop应用8样本移动平均滤波后的结果 - fileName：关联的图像文件名 - beamON：通过对图像进行阈值处理得到的激光开启信号（背景噪声对应激光关闭，最小强度阈值对应激光开启）
