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Axial cutting force in drilling operation

Frezgi, Heaven LU and Gelli, Bharath LU (2021) MMTM05 20211
Production and Materials Engineering
Abstract
Metal cutting has been part of industrial development since the iron age. Since then, it has changed shapes and criteria, but efficiency in metal cutting has been one of the biggest goals in the industrial world for just as long. To have maximum efficiency requires some level of process behavior prediction, which inspired the degree project. The project was conducted in collaboration with Lund University and Seco as an academic degree project for the university and as a practical tool for Seco.
The project started with a literature review, where existing models in predicting axial cutting force in drilling operations were thoroughly studied and analyzed. The result of the literature review was one chosen model for further tests and... (More)
Metal cutting has been part of industrial development since the iron age. Since then, it has changed shapes and criteria, but efficiency in metal cutting has been one of the biggest goals in the industrial world for just as long. To have maximum efficiency requires some level of process behavior prediction, which inspired the degree project. The project was conducted in collaboration with Lund University and Seco as an academic degree project for the university and as a practical tool for Seco.
The project started with a literature review, where existing models in predicting axial cutting force in drilling operations were thoroughly studied and analyzed. The result of the literature review was one chosen model for further tests and modifications. The chosen model was used to predict the axial cutting force for chosen tool diameters and feed machining SS2541 in the material group P5.
Experimental tests were performed to test the model. They showed that the prediction was not a perfect fit, which led to mathematical tests where different solver-based constants were added to the model to provide the minimum possible error percentage between the measured and modeled axial cutting forces. During this phase of the project, a pattern was detected where the model underestimated the axial cutting force for smaller diameters.
The results are presented in performance order where the correlation between diameter, feed, measured and modeled axial cutting force is both visualized in graphs and described in the report. Furthermore, a chapter with a suggestion for future studies has been added to optimize the model further. (Less)
Popular Abstract (Swedish)
Metallisk bearbetning har varit en del av den industriella utvecklingen sedan järnåldern. Sedan dess har det ändrat form och kriterier men effektivitet i skärande bearbetning av metall har varit ett av de största målen i den industriella världen lika länge. För att ha maximal effektivitet krävs en viss nivå av processbeteende, vilket är det som inspirerade examensarbetet. Projektet genomfördes i samarbete mellan Lunds universitet och Seco som ett akademiskt examensprojekt för universitetet och som ett praktiskt verktyg för Seco.
Projektet startade med litteraturgranskning där befintliga modeller för förutsägelse av axiell skärkraft i borr-operationer grundligt studerades och analyserades. Resultatet av litteraturöversikten var en vald... (More)
Metallisk bearbetning har varit en del av den industriella utvecklingen sedan järnåldern. Sedan dess har det ändrat form och kriterier men effektivitet i skärande bearbetning av metall har varit ett av de största målen i den industriella världen lika länge. För att ha maximal effektivitet krävs en viss nivå av processbeteende, vilket är det som inspirerade examensarbetet. Projektet genomfördes i samarbete mellan Lunds universitet och Seco som ett akademiskt examensprojekt för universitetet och som ett praktiskt verktyg för Seco.
Projektet startade med litteraturgranskning där befintliga modeller för förutsägelse av axiell skärkraft i borr-operationer grundligt studerades och analyserades. Resultatet av litteraturöversikten var en vald modell för ytterligare tester och modifieringar. Den valda modellen användes för att förutsäga den axiella skärkraften för valda olika verktygsgeometrier och processdata i arbetsmaterial SS2541 inom materielgruppen P5.
För att testa modellen gjordes experimentella tester och modellfelet utvärderades. Vilket ledde till numeriska tester där olika lösningsbaserade konstanter lades till modellen för att ge minsta möjliga felprocent mellan de uppmätta och modellerade axiella skärkrafterna. Under denna fas av projektet upptäcktes ett mönster där modellen underskattade den axiella skärkraften för mindre borrdiametrar.
Resultaten av detta projekt presenteras i prestationsordning där korrelationen mellan diameter, matning, uppmätt och modellerad axiell skärkraft både visualiseras i grafer och beskrivs i rapporten. Dessutom har ett kapitel med förslag för framtida studier lagts till för att ytterligare optimera modellen. (Less)
Please use this url to cite or link to this publication:
author
Frezgi, Heaven LU and Gelli, Bharath LU
supervisor
organization
course
MMTM05 20211
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Axial cutting force, Drilling, Model optimization.
report number
CODEN:LUTMDN/(TMMV-5319/1-55/2021)
language
English
id
9053055
date added to LUP
2021-06-11 12:33:36
date last changed
2021-06-16 23:49:13
@misc{9053055,
  abstract     = {{Metal cutting has been part of industrial development since the iron age. Since then, it has changed shapes and criteria, but efficiency in metal cutting has been one of the biggest goals in the industrial world for just as long. To have maximum efficiency requires some level of process behavior prediction, which inspired the degree project. The project was conducted in collaboration with Lund University and Seco as an academic degree project for the university and as a practical tool for Seco. 
The project started with a literature review, where existing models in predicting axial cutting force in drilling operations were thoroughly studied and analyzed. The result of the literature review was one chosen model for further tests and modifications. The chosen model was used to predict the axial cutting force for chosen tool diameters and feed machining SS2541 in the material group P5. 
Experimental tests were performed to test the model. They showed that the prediction was not a perfect fit, which led to mathematical tests where different solver-based constants were added to the model to provide the minimum possible error percentage between the measured and modeled axial cutting forces. During this phase of the project, a pattern was detected where the model underestimated the axial cutting force for smaller diameters. 
The results are presented in performance order where the correlation between diameter, feed, measured and modeled axial cutting force is both visualized in graphs and described in the report. Furthermore, a chapter with a suggestion for future studies has been added to optimize the model further.}},
  author       = {{Frezgi, Heaven and Gelli, Bharath}},
  language     = {{eng}},
  note         = {{Student Paper}},
  title        = {{Axial cutting force in drilling operation}},
  year         = {{2021}},
}