Mechanics, dynamics and optimization of special end mills

Koca, Recep (2012) Mechanics, dynamics and optimization of special end mills. [Thesis]

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Machining, especially milling, is still one of the most commonly employed manufacturing operations in industry because of its flexibility and potential to produce high quality parts. Milling performance can be increased significantly using special milling tools, such as variable pitch and helix or serrated end mills. The literature on these special tools is mostly limited to prediction of milling forces and chatter stability. Although there are very few studies on optimal design of variable pitch and helix tools, no work has been reported on selection or optimization of serrated end mills. In this thesis, mechanics and dynamics of these tools are investigated in detail. Furthermore, methods and their results on optimization of these tools for minimized milling forces and increased stability are also presented. Optimal variable pitch tools are designed for a given milling system and a desired spindle speed, using different pitch patterns. Their performances are compared and some important and practical results are found. The effects of serration waveform geometry on cutting forces and chatter stability are also investigated in detail. According to the optimization results, guidelines for selection and design of these tools are proposed.
Item Type: Thesis
Uncontrolled Keywords: Special end mills -- Serrated end mills. -- Variable pitch end mills. -- Optimization for higher performance. -- Milling mechanics and dynamics. -- Semi- discretization. -- Özel frezeleme takımları. -- Kaba frezeleme takımları. -- Değişken adım aralıklı frezeleme takımları. -- Yüksek performans için eniyileme. -- Frezeleme mekaniği ve dinamiği. -- Yarı – ayrıklaştırma metodu.
Subjects: T Technology > T Technology (General) > T055.4-60.8 Industrial engineering. Management engineering
Divisions: Faculty of Engineering and Natural Sciences > Academic programs > Industrial Engineering
Faculty of Engineering and Natural Sciences
Depositing User: IC-Cataloging
Date Deposited: 07 Nov 2017 15:45
Last Modified: 26 Apr 2022 10:13

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