Kernel TIF method for effective material removal control in rotating pitch tool-based optical figuring

Yi, Hyun Su; Yang, Hyunjo; Lee, Yun Woo; Kim, Sug Whan

doi:10.1007/s00170-010-3045-0

Cited by 4 publications

(1 citation statement)

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“…Preston coefficient is related to the abrasive slurry and polishing conditions [1,2]. Preston equation indicates that MRR is linearly proportional to the polishing pressure and the polishing velocity.…”

Section: Introductionmentioning

confidence: 99%

Image processing–based material removal rate analysis of morphable polishing tools with labyrinth and dimple textures

Nie,

Kaiyuan

2024

Int J Adv Manuf Technol

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Morphable polishing tools are capable of finishing diamond turned surfaces with roughness in the nanometre range. The material removal rate of morphable tools polishing is challenging to calculate due to the labyrinth and dimple textures. This paper introduces a multi-scale theoretical model for predicting the material removal rate of morphable polishing tools. The model includes the polishing veslocity, polishing pressure, material removal by an abrasive, and number of effective abrasives. First, polishing velocity is obtained by tool kinematics analysis. Second, polishing pressure is obtained based on image processing. Theoretical polishing pressure is calculated by polishing pressure equations. Morphable tool texture images are binarized and conducted with Boolean product of the theoretical polishing pressure images to get the morphable tool polishing pressure. The morphable tool polishing pressure and twelve-image averaged pressure are conducted with Boolean product of the polishing velocity to obtain the instant and average material removal rate. Then the polishing pressure and material removal rate model are validated through pressure measurement and polishing tests, respectively. It is found that the polishing spot is ellipse shape with long axis (10.6 mm) and short axis (9.6 mm). The material removal rate for smooth tools along the short axis is almost constant while it steadily increased along the negative long axis. For labyrinth tools, the material removal rate along the short axis and the long axis is a trapezoidal shape and scalene triangular shape. For dimple tools, the material removal rate along the long axis and the short

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Section: Introductionmentioning

confidence: 99%