Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 68 for “"cutting forces"”.
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Analytical modeling and simulation of metal cutting forces for engineering alloys
… flow stress data under the condition of metal cutting. ii On the chip-tool interface, The chip-tool interface is assumed to consist of the secondary shear zone and elastic friction zone(i.e. sticking zone and sliding zone). The normal stress distribution over the entire contact length is …
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Prediction of cutting forces in five-axis micro-ball end milling
… Unfortunately, due to the high fragility of the cutting tool, premature tool failure has been a major challenge in micro-scale machining. Tool strength of a micro-ball end mill can be easily exceeded by the strain induced by cutting force, thus cutting force is desired to be accurately predicted. …
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Machining of additively manufactured titanium Ti-6Al-4V; cutting forces and chip morphology
… uses a combination of experimentally measured cutting forces and optimization methods including genetic algorithm and particle swarm optimization to find the suitable J-C parameters. Force simulation and experiments were conducted to validate the proposed model and the results showed its …
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The effect of chemical additives on cutting forces and rate of wear of natural diamonds
Call number: LD2668 .T4 1978 R37
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The effect of chemical additives on cutting forces and rate of wear of natural diamonds
Call number: LD2668 .T4 1978 R37
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Prediction of cutting forces and surface errors in face milling with generalized cutter and workpiece geometry
Face milling is a widely used material removal process in the automotive industry for machining the flat surface of components such as an engine block and cylinder head, etc. The surface flatness error of the machined workpiece is a key variable affecting the quality of the part and the …
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Mechanistic modeling of cutting forces in wavy-edge bull-nose helical end-milling of Inconel 718 under different cooling-lubrication strategies
… the results of the development of a mechanistic cutting force prediction model for the wavy-edge bull-nose helical endmill (WEBNHE). The mechanistic model was developed to predict cutting force components and the resultant cutting force in high-speed end-milling of Inconel 718 under two cooling …
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Modeling of the cylinder boring process for prediction of cutting force, temperature and surface error
… the elastic deflection of the bore wall due to cutting forces and the thermal expansion of the cylinder bore during machining. The prediction of cutting forces is achieved through the development of a mechanistic model which accounts for the effect of cutting condition and tool geometry …
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The cutting behavior of bandsaws
A model of a bandsaw, subjected to lateral cutting forces on the teeth and restrained by the sawn surfaces of the wood, has been developed. The blade model includes the effects of blade dimensions, bandmill strain, in-plane stresses, tooth (gullet) depth, tooth bending stiffness, blade speed, …
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A generalized approach for mechanics of chip formation in steady-state and dynamic orthogonal metal cutting using a new model of shear zone with parallel boundaries and its validation to cutting-forces prediction in self-piloting machining
… parallel-sided shear zone models. A steady-state cutting force model has been derived and adapted to orthogonal cutting of a self-piloting drilling. In the formulated model, special attention has been devoted to the thermomechanical state which defines the effect of the temperature on the yield …
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A model to predict the three-dimensional cutting force system for drilling with arbitrary point geometry
… etc. Most of these parameters are related to the cutting forces generated in the process. Modeling the cutting forces in drilling, in terms of the tool geometry and machining conditions, is an important step in developing a simulation-based platform for the design and evaluation of new drill point …
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Evaluation of the atomization-based cutting fluid spray system in milling of titanium alloy
… it difficult to dissipate heat generated during cutting process. Therefore, effective cooling and lubrication effects are vital during machining of these alloys. Recently, it has been shown that an atomization-based cutting fluid (ACF) spray system can effectively cool and lubricate the cutting …
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Applications of Intelligent Manufacturing and of Numerical/Analytical Modeling Techniques to Milling Processes
… highlight behaviour of products, for example of cutting tools, during the design phase. The second technique deals with the manufacturing process control, and is aimed at the increasing of automation level of modern production systems by evolving them towards the paradigm of Intelligent …
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Effect of cutting tool microgeometry when milling hardened steels, a finite element simulation and surface integrity analysis
… performed to validate the numerically generated cutting forces and chip morphologies. A close agreement between the results was reported. Moreover, experiments results were used to investigate the impact of cutting conditions and the microgeometry of cutting inserts on the cutting forces and the …
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Analytical and experimental study of the effect of cutting tool microgeometry on the impact resistance of milling tools
… investigation into the ability of a milling tool cutting insert to resist the impacts that occur during the milling process, with respect to the cutting edge microgeometry. The first part of this thesis contains a mathematical model that was used to predict the cutting forces acting on the tool …
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Stability and Vibration Analysis of Turning and Face Milling Processes
… of the outputs of the dynamic model, namely the cutting forces, standard deviation of vibration, surface quality, and the stability of the machining processes, and the strategies used to machine a part with maximum material rate and/or minimum vibration is also presented.
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Investigation of M2 and anti-segregation process HSS flat broaching tools.
… has been carried out to compare the cutting performance and tool life evaluation of high speed steel broach samples. The comparison has been done between conventional M2 and Anti-Segregation Process (ASP) ASP53 and ASP30 high speed steel broach samples. The ASP53 was a development …
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Design and characterization of a smart bit for in-situ force measurement, using capacitive load cells and acoustic spectra analysis to determine rock type and tool wear in rock excavation process
… themselves at risk when they get close to the cutting interface to do so. Vibration frequencies, acoustic emissions, and cutting forces are all known to vary with rock type and tool wear conditions, and this work captures those changes with varied cutting test conditions. Three different sensor …
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The effect of tooth geometry on power hacksaw blade performance.
… model has been developed to show how rapidly cutting forces increase when the chip is restricted from flowing. Two testing procedures have been developed to examine chip formation in the gullet. The first procedure employs video equipment to show chip formation and cutting forces …
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Model based simulation of broaching operation: cutting mechanics, surface integrity, and process optimization
… based geometric model is developed for broaching cutting edges followed by model validation using 3D ACIS modeller. To study the mechanics of cutting and generated cutting forces during broaching operation, an energy based force model is presented which can predict the cutting forces based on the …
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