A comparative study on hole quality criteria on CFRP drilling
(2021) MMTM05 20211Production and Materials Engineering
- Abstract
- Drilling is an essential hole-making operation in the modern industrial world. Drilling operation is comparatively challenging in composites when compared to metals. Composites are heterogeneous and possess a high strength-to-weight ratio which makes it a challenge in composite drilling. The hole quality has two major defects affecting the reliability of CFRP composites: Uncut fibers and Delamination are critical factors responsible for gap formation, leading to loosening and slacking of the joints. This Phenomenon has a high degree of risk in the reliability of joints. The drilling process of CFRP can be optimized using optimum tool geometry and cutting data. This thesis analyzes hole quality factors such as the Delamination and uncut... (More)
- Drilling is an essential hole-making operation in the modern industrial world. Drilling operation is comparatively challenging in composites when compared to metals. Composites are heterogeneous and possess a high strength-to-weight ratio which makes it a challenge in composite drilling. The hole quality has two major defects affecting the reliability of CFRP composites: Uncut fibers and Delamination are critical factors responsible for gap formation, leading to loosening and slacking of the joints. This Phenomenon has a high degree of risk in the reliability of joints. The drilling process of CFRP can be optimized using optimum tool geometry and cutting data. This thesis analyzes hole quality factors such as the Delamination and uncut fibers, aiming to find an optimum tool geometry for minimal tool wear.
This thesis aims to identify the key parameters which influence the formation of undesirable defects found in drilling composites. These hole quality effects result negatively in bolted and riveted connection between CFRP Components which is a significant safety concern in the Aerospace and Motorsports field.
During the initial phase, extensive research has been carried to gather data through literature surveys. This research was responsible for understanding the tool geometry influencing the defects such as Delamination or uncut fibers, which has set a foundation for the experimentation. The second phase entails analyzing CFRP specimens using Alicona Infinite focus. Whereas, in the final stage, the data from the microscopic images are processed using MATLAB scripts to calculate and compare the delamination factor and uncut fibers under varying cutting conditions and tools.
The results are plotted using graphs to compare delamination and uncut fiber under varying cutting and tool coatings. The reason for the hole quality behavior has been discussed briefly in the later chapter. (Less) - Popular Abstract
- Drilling is an essential hole-making operation in the modern industrial world. Drilling operation is comparatively challenging in composites when compared to metals. Composites are heterogeneous and possess a high strength-to-weight ratio which makes it a challenge in composite drilling. The hole quality has two major defects affecting the reliability of CFRP composites: Uncut fibers and Delamination are critical factors responsible for gap formation, leading to loosening and slacking of the joints. This Phenomenon has a high degree of risk in the reliability of joints. The drilling process of CFRP can be optimized using optimum tool geometry and cutting data. This thesis analyzes hole quality factors such as the Delamination and uncut... (More)
- Drilling is an essential hole-making operation in the modern industrial world. Drilling operation is comparatively challenging in composites when compared to metals. Composites are heterogeneous and possess a high strength-to-weight ratio which makes it a challenge in composite drilling. The hole quality has two major defects affecting the reliability of CFRP composites: Uncut fibers and Delamination are critical factors responsible for gap formation, leading to loosening and slacking of the joints. This Phenomenon has a high degree of risk in the reliability of joints. The drilling process of CFRP can be optimized using optimum tool geometry and cutting data. This thesis analyzes hole quality factors such as the Delamination and uncut fibers, aiming to find an optimum tool geometry for minimal tool wear.
This thesis aims to identify the key parameters which influence the formation of undesirable defects found in drilling composites. These hole quality effects result negatively in bolted and riveted connection between CFRP Components which is a significant safety concern in the Aerospace and Motorsports field.
During the initial phase, extensive research has been carried to gather data through literature surveys. This research was responsible for understanding the tool geometry influencing the defects such as Delamination or uncut fibers, which has set a foundation for the experimentation. The second phase entails analyzing CFRP specimens using Alicona Infinite focus. Whereas, in the final stage, the data from the microscopic images are processed using MATLAB scripts to calculate and compare the delamination factor and uncut fibers under varying cutting conditions and tools.
The results are plotted using graphs to compare delamination and uncut fiber under varying cutting and tool coatings. The reason for the hole quality behavior has been discussed briefly in the later chapter. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/9053736
- author
- Jeevanandham, Jerome Paul Raenius LU and Balaji, Sakthivel LU
- supervisor
- organization
- course
- MMTM05 20211
- year
- 2021
- type
- H2 - Master's Degree (Two Years)
- subject
- keywords
- CFRP, Composites, Hole quality, Delamination, Uncut fibers
- report number
- LUTMDN/(TMMV-5314)/1-53/2021
- language
- English
- id
- 9053736
- date added to LUP
- 2021-06-14 13:47:15
- date last changed
- 2021-06-16 23:50:23
@misc{9053736,
abstract = {{Drilling is an essential hole-making operation in the modern industrial world. Drilling operation is comparatively challenging in composites when compared to metals. Composites are heterogeneous and possess a high strength-to-weight ratio which makes it a challenge in composite drilling. The hole quality has two major defects affecting the reliability of CFRP composites: Uncut fibers and Delamination are critical factors responsible for gap formation, leading to loosening and slacking of the joints. This Phenomenon has a high degree of risk in the reliability of joints. The drilling process of CFRP can be optimized using optimum tool geometry and cutting data. This thesis analyzes hole quality factors such as the Delamination and uncut fibers, aiming to find an optimum tool geometry for minimal tool wear.
This thesis aims to identify the key parameters which influence the formation of undesirable defects found in drilling composites. These hole quality effects result negatively in bolted and riveted connection between CFRP Components which is a significant safety concern in the Aerospace and Motorsports field.
During the initial phase, extensive research has been carried to gather data through literature surveys. This research was responsible for understanding the tool geometry influencing the defects such as Delamination or uncut fibers, which has set a foundation for the experimentation. The second phase entails analyzing CFRP specimens using Alicona Infinite focus. Whereas, in the final stage, the data from the microscopic images are processed using MATLAB scripts to calculate and compare the delamination factor and uncut fibers under varying cutting conditions and tools.
The results are plotted using graphs to compare delamination and uncut fiber under varying cutting and tool coatings. The reason for the hole quality behavior has been discussed briefly in the later chapter.}},
author = {{Jeevanandham, Jerome Paul Raenius and Balaji, Sakthivel}},
language = {{eng}},
note = {{Student Paper}},
title = {{A comparative study on hole quality criteria on CFRP drilling}},
year = {{2021}},
}