Automatic optical inspection technologyapplication

The technology uses cathodic arc deposition combined with electromagnet field control and optical emission spectroscopy (OES) for the deposition of new functional high entropy alloy (HEA) nitride coatings. The HEA nitride coatings possessed such high hardness and excellent hydrophobicity with low surface energy which are beneficial for high speed dry cutting. Finally, the coatings were deposited on the micro end mills for cutting test of printed circuit board. The HEA ACZN coated tools can possess high wear resistance and outperform the uncoated tools at least 4 times of tool lives.