Fabrication of a Micro-Lens Array Mold by Micro Ball End-Milling and Its Hot Embossing

Fabrication of a Micro-Lens Array Mold by Micro Ball End-Milling and Its Hot Embossing

Blog Article

Hot embossing is an efficient technique for manufacturing high-quality micro-lens arrays.The machining quality is significant for hot embossing the micro-lens array mold.This study investigates the effects of micro ball end-milling on the machining quality of AISI H13 tool steel used in the micro-lens array mold.The micro ball end-milling experiments were performed under different machining strategies, nitrile gloves in a bucket and the surface roughness and scallop height of the machined micro-lens array mold are measured.The experimental results showed that a three-dimensional (3D) offset spiral strategy could achieve a higher machining quality in comparison with other strategies assessed in this study.

Moreover, the 3D offset spiral strategy is more appropriate for machining the micro-lens array mold.With an increase of the cutting speed and feed rate, the surface roughness of the micro-lens array mold slightly increases, navy drapery fabric while a small step-over can greatly reduce the surface roughness.In addition, a hot embossing experiment was undertaken, and the obtained results indicated higher-quality production of the micro-lens array mold by the 3D offset spiral strategy.