Feature: AI


ANN with 13 different input parameters. Table 1: Dimensions of the cutter in Figure 4


Materials We used the SECO Jet Stream as our cutting tool, because it responds to the maximum pressure of 350 bar that we applied in this study; see Figure 4 and Table 1. We used Inconel 718 material as the workpiece; see Figure 5.


Its chemical composition is shown in Table 2, with its mechanical properties in Table 3. Te 353B31 PCB piezoelectric sensor was used to detect the


vibrations; see Figure 6. Te aim of using this model was to determine the suitable vibration sensitivity. We used the 9757 dynamometer from Kistler to measure


the cutting forces. Surface roughness was determined using a diamond-edged Hommel Werke T 500 tester, which takes measurements with 0.01μm sensitivity. DAQ 6062E data collection card (Figure 7) was used to process


Figure 5: The Inconel 718 super-alloy used in the experiments


the data from the vibration sensor and dynamometer. Its features include a 16-bit over 70 signals. Cutting speed was 50m/s, with cutting depth of 0.25mm; the cooling liquid pressure was 6, 100 and 300bar; see Table 5.


Table 2: Chemical


composition of Inconel 718 super-alloy (% weight)


Table 3: Mechanical properties of the Inconel 718 super-alloy


Figure 6: PCB 353B31 vibration sensor


Figure 7: Data collection card


Table 4: Chemical composition of Inconel 718 (% weight)


34 September/October 2020 www.electronicsworld.co.uk


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