Sensor based online quality monitoring system for detection of milling defects on CFRP structures

Rawal, Parth; Brillinger, Christoph; Böhlmann, Christian; Hintze, Wolfgang

doi:10.1007/s13272-019-00436-8

Cited by 3 publications

(3 citation statements)

References 8 publications

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“…In robotic applications and CFRP metrology, following technologies are most common: (short-range) photogrammetry [14,31,32], structured light [33][34][35], thermography [36][37][38], laser scanners [39][40][41] and laser triangulation [42][43][44][45]. In addition, hybrid variants exist [14,29,30].…”

Section: Optical Metrology In Cfrp Applicationsmentioning

confidence: 99%

“…Examples range from antireflection coatings [30] to different filters and algorithms for image segmentation and processing [42,44,47]. Occasionally, interfering effects can be neglected due to their magnitude in relation to the actual measured object, for example in the detection of fiber fraying [45] or cut edges in prepreg deposition [43]. Characteristic in each case is the evaluation of already processed components for quality monitoring.…”

Section: Optical Metrology In Cfrp Applicationsmentioning

confidence: 99%

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Sensor-guided machining of large-scale CFRP components based on resin transfer molded features

Muth,

Carstensen,

Hintze

et al. 2023

Optical Measurement Systems for Industrial Inspection XIII

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Carbon fiber-reinforced Plastics (CFRP) are a key factor for achieving a carbon-neutral mobility sector due to their lightweight properties. Despite their near-net-shape manufacturing subsequent precision machining is required. In case of large-scale CFRP components, which are characterized by small quantities and low machining volumes, such processes are difficult to operate economically with conventional systems. Robotic systems offer a suitable solution. Their use in machining, however, requires additional measures to compensate for structural system limitations. In addition, individual deviations of the blanks require time-consuming measuring for referencing the machining system.To enable the use of cost-efficient robotic systems and to eliminate unproductive downtime for measuring, the intended manufacturing of CFRP components by Resin Transfer Molding (RTM) offers a new opportunity. RTM allows for the integration of defined features into the molding tool, which are reproduced inverted on the component and can be referenced by subsequent processes. This is utilized with adapted strategies for time-efficient measuring and high-precision machining.Fundamentals for the corresponding feature design as well as the selection of a suitable measuring device are presented. Focusing on laser-based sensors, the relationship between wavelength and (semi-)transparent surfaces is discussed and validated. Besides the metrological detection, production-specific aspects are also taken into account. Based on the gained knowledge, the main aspects of a proper sensor-feature combination are elaborated and prototypically realized. Finally, an outlook is provided on the challenges involved when implementing a robust algorithm for feature detection.

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Section: Optical Metrology In Cfrp Applicationsmentioning

confidence: 99%

Section: Optical Metrology In Cfrp Applicationsmentioning

confidence: 99%

Sensor-guided machining of large-scale CFRP components based on resin transfer molded features

Muth,

Carstensen,

Hintze

et al. 2023

Optical Measurement Systems for Industrial Inspection XIII

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show abstract

“…Xu et al [5] studied the CFRP material machining in terms of wear behavior and machining responses. Rawal et al [6] detected the milling defects on CFRP structures using the sensor-based online quality monitoring system. Kumar and Verma [7] optimized the multiple response in machining (milling) of graphene oxide-doped EPOXY/CFRP composite using COCOSO-PCA.…”

Section: Introductionmentioning

confidence: 99%

Study of Complex Helical Drill with a “S” Type Chisel Edge Tip Orient to Carbon Fiber Reinforced Plastics

Zhou

Zou

et al. 2021

Advances in Materials Science and Engineering

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In this paper, a complex helicoids’ drill tip of “S” type chisel edge grinded with a three-parallel universal CNC grinding machine tool is carefully studied to obtain the optimum drill bit tip geometry parameters. The effects of experimental parameters, such as apex angle, chisel edge incline angle, and structure circumference rear angle, on the quality of the drilling hole and the machining force were studied from the orthogonal experiment compared with the ordinary drill bit. The range of technological parameters are confirmed which should be used during the drilling process of carbon fiber reinforced plastics (CFRP) in order to realize the reduction of cutting defects such as cutting force and spurs. The effect of spindle speed and feed on the drilling behaviour of the experiment using optimum complex helicoids’ drill tip is also analyzed. It is found that the feed has a great influence on the drilling axial force and the spindle speed has little influence on axial force, but great influence on torque.

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Investigation of an Advanced Methodology for Automated Quality Inspection of milled CFRP-Edges through the Use of Image Processing of Infrared Images

Schulze,

Michaelis,

Blome

2023

2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)

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Sensor based online quality monitoring system for detection of milling defects on CFRP structures

Cited by 3 publications

References 8 publications

Sensor-guided machining of large-scale CFRP components based on resin transfer molded features

Sensor-guided machining of large-scale CFRP components based on resin transfer molded features

Study of Complex Helical Drill with a “S” Type Chisel Edge Tip Orient to Carbon Fiber Reinforced Plastics

Investigation of an Advanced Methodology for Automated Quality Inspection of milled CFRP-Edges through the Use of Image Processing of Infrared Images

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