Abstract:Laser degumming is a new technology in the maintenance of press valve, which has the advantages of high efficiency, high accuracy, complete degumming and low pollution. However, the metal matrix is prone to thermal damage when subjected to laser action. It is found that 1Cr18Ni9Ti is the most prone to oxidation. If 1Cr18Ni9Ti is not damaged, 2A12 and HPB59 materials will not be damaged under the same laser parameter processing. The internal metallographic structure of 1Cr18Ni9Ti sample does not change when it … Show more
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