Abstract
This paper presents an evaluation of hybrid cryogenic processes used to eliminate burrs on the exit side of drilled holes in carbon fiber-reinforced plastic composites. These hybrid cryogenic processing methods do not produce environmental hazards and they involve adding a longitudinal ultrasonic motion to the drill cutter and water into a cryogenic environment during the deburring process. There are four methods used for this hybrid cryogenic deburring process: the first method involves ultrasonic vibrations and a cryogenic environment; the second method involves water and a cryogenic environment; the third method involves water, ultrasonic vibrations and a cryogenic environment; and the fourth method involves water, ultrasonic vibrations, a cryogenic environment, and a backup ice layer. The methods were compared in terms of the percentage of removed burrs; the microscopy images of removed burrs are presented in this paper. According to experimental investigations, the fourth method exhibits up to 100% efficiency in removing burrs, followed by the third, the second, and the first method.
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Funding
This work was supported by the Technology Innovation Program (10053248, Development of Manufacturing System for CFRP (Carbon Fiber Reinforced Plastics) Machining) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea).
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Park, K.M., Kurniawan, R., Yu, Z. et al. Evaluation of a hybrid cryogenic deburring method to remove uncut fibers on carbon fiber-reinforced plastic composites. Int J Adv Manuf Technol 101, 1509–1523 (2019). https://doi.org/10.1007/s00170-018-3045-z
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DOI: https://doi.org/10.1007/s00170-018-3045-z