Abstract
In order to improve the reflection coefficient of nickel electroforming layer with microprism structure effectively, controlling electroforming process strictly and adjusting different process parameters are needed for achieve the best electroforming effect. Nickel casting layer was prepared by ultrasonic direct current electroforming on the microprism nickel plate. Surface reflective coefficient of nickel casting layer was measured by retroreflectometer, and the morphology was observed by 3D laser scanning microscopy system. The effects of ultrasonic power, frequency and average current density on the surface reflective performance were studied, experimental results were verified by measuring microprism side surface roughness. The results show that reflective coefficient of nickel casting layer prepared by high frequency ultrasonic electroforming was greater than that by low frequency with other experimental conditions remaining unchanged. It was increased first and then decreased with ultrasonic power and average current density increasing gradually, and the surface roughness measurement also verified this conclusion.
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