Results 11 to 20 of about 5,795,971 (345)

A Deep-Hole Microdrilling Study of Pure Magnesium for Biomedical Applications

open access: yesMicromachines, 2023
The mechanisms of deep-hole microdrilling of pure Mg material were experimentally studied in order to find a suitable setup for a novel intraocular drug delivery device prototyping. Microdrilling tests were performed with 0.20 mm and 0.35 mm microdrills,
Margherita Pizzi   +4 more
doaj   +1 more source

3D finite element simulation for tool temperature distribution and chip formation during drilling of Ti6Al4V alloy

open access: yesThe International Journal of Advanced Manufacturing Technology, 2022
A comprehensive 3D finite element simulation study has been conducted to investigate the tool temperature distribution along cutting edge and chip formation during drilling of Ti6Al4V alloy by using commercial finite element software Abaqus/Explicit. The
Zhaoju Zhu   +5 more
semanticscholar   +1 more source

Drilling Vanadis 4E with Coated Drills; Examination of Wear, Surface Roughness, and Chip Formation

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2023
Vanadis 4E is a versatile powder metallurgical tool steel widely used in today's market with high wear resistance and excellent yield properties. Drilling operations applied to materials are one of the operations commonly used in the machining industry ...
Gürcan Samtaş   +2 more
doaj   +1 more source

Modelling and controlling the process of cutting with complex-geometry tools to improve efficiency of mining machines and plants [PDF]

open access: yesE3S Web of Conferences, 2021
Constant quality improvement through automation of production processes is an important prerequisite for increased viability of mining machines and plants.
Mikhailov Stanislav   +2 more
doaj   +1 more source

Influence of metal working fluid on chip formation and mechanical loads in orthogonal cutting

open access: yesThe International Journal of Advanced Manufacturing Technology, 2021
Metal working fluids are used in machining processes of many hard-to-cut materials to increase tool life and productivity. Thereby, the metal working fluids act on the thermal and on the mechanical loads of the tool.
B. Denkena, A. Krödel, L. Ellersiek
semanticscholar   +1 more source

Influence of graphite particles on surface roughness and chip formation studies in turning metal matrix composites [PDF]

open access: yesMaterials Research, 2013
This study presents an experimental investigation on surface roughness and chip formation in turning of Al 2219/15SiCp and Al 2219/15SiCp-3Gr (hybrid) composites.
S. Basavarajappa, J. Paulo Davim
doaj   +3 more sources

Effect of Cutting Parameters and Tool Geometry on the Performance Analysis of One-Shot Drilling Process of AA2024-T3

open access: yesMetals, 2021
Drilling is an important machining process in various manufacturing industries. High-quality holes are possible with the proper selection of tools and cutting parameters.
Muhammad Aamir   +7 more
doaj   +1 more source

Numerical Analysis of Serrated Chip Formation Mechanism with Johnson-Cook Parameters in Micro-Cutting of Ti6Al4V

open access: yesMetals, 2021
Previous studies have reported significant differences in the Johnson-Cook (J-C) parameters of Ti6Al4V alloy. Thus, various serrated chip morphologies, cutting forces, and cutting temperatures are obtained when different constitutive parameters are used ...
Zhongpeng Zheng   +4 more
semanticscholar   +1 more source

Cutting Depth Dictates the Transition from Continuous to Segmented Chip Formation.

open access: yesPhysical Review Letters, 2021
The process of material cutting emerges from a series of nonlinear phenomena including frictional contact, plastic deformation, and fracture. While cutting dominated by shear deformation is of interest to achieve a smooth material removal and a high ...
R. Aghababaei, M. Malekan, M. Budzik
semanticscholar   +1 more source

Chip formation in anisotropic rock [PDF]

open access: yesRock Mechanics Felsmechanik M�canique des Roches, 1978
Chip Formation in Anisotropic Rock In a series of previous papers it was shown that the fracture of brittle materials such as rock subjected to a globally compressive stress field is accompanied by the formation of microdamage regions. Quantitative descriptions of these regions exist for isotropic materials. In the present paper the theory is extended
Altiero, Nicholas J.   +1 more
openaire   +3 more sources

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