Geometric measurement of the surface of a v-bend during multi-scan laser forming (original) (raw)

2019

Abstract

The data describes the measurement of a v-bend shape formed during multi-scan laser forming. The purpose of the measurements was to determine the dynamic response during laser forming of a v-bend. A measurement scanner was used to measure the height of a line perpendicular to the heating scan line of a laser during laser forming. In order to estimate a surface, 105 samples were made with identical settings with the measurement scanner moved along the heating scan line between samples. A total of 21 positions along the heating scan line were measured. Each position was measured using 5 samples. Due to a memory problem, the measurement scanner could only measure about 3.12 seconds at a time. The measurement scanner is started slightly before each heating scan line starts. Furthermore, each heating scan line is split into its own text file in the data set. This data set contains 21 folders, one for each position of the measurement scanner along the heating scan line. The folders are named as 'ymm', where y is the distance from the trailing edge of the heating scan line, '_' is used instead of decimals here. Each folder contains 30 text files, 6 for each of the samples used, structured as (x, y, z, t). Each file is named as 'sample_i_plate_j_scannumber_k.txt', where i is the sample number (1-5) at this position, j is the plate number (1 or 2), k is the scan number (1-6). Scan number 6 does not contain any heating, but is set as a final measurement of about 60 seconds after forming. Warning: The unzipped data fill 51.6 GB

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