Evaluation of a hybrid cryogenic deburring method to remove uncut fibers on carbon fiber-reinforced plastic composites

• Published in: International journal of advanced manufacturing technology 2019-04, Vol.101 (5-8), p.1509-1523
• Main Authors: Park, Ki Moon, Kurniawan, Rendi, Yu, Zhen, Ko, Tae Jo
• Format: Article
• Language: English
• Subjects: Burrs; CAE) and Design; Carbon fiber reinforced plastics; Carbon fiber reinforcement; Computer-Aided Engineering (CAD; Cryogenic engineering; Deburring; Engineering; Fiber composites; Hazards; Industrial and Production Engineering; Mechanical Engineering; Media Management; Methods; Original Article; Polymer matrix composites; Production methods; Ultrasonic testing; Ultrasonic vibration
• ISSN: 0268-3768; 1433-3015
• DOI: 10.1007/s00170-018-3045-z

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.