Results 91 to 100 of about 5,838,124 (351)

Milling cutters for CNC machine tools [PDF]

open access: yes, 2010
Bakalářská práce je zaměřena na frézovací nástroje pro CNC frézovací centra. Zpočát-ku se práce zabývá teorií frézování. Jsou v ní rozděleny frézovací nástroje či frézovací stroje. Dále je jedna kapitola věnována možnostmi upnutí nástroje. Praktická část
Janošek, Martin
core  

In Situ Study of Resistive Switching in a Nitride‐Based Memristive Device

open access: yesAdvanced Functional Materials, EarlyView.
In situ TEM biasing experiment demonstrates the volatile I‐V characteristic of MIM lamella device. In situ STEM‐EELS Ti L2/L3 ratio maps provide direct evidence of the oxygen vacancies migrations under positive/negative electrical bias, which is critical for revealing the RS mechanism for the MIM lamella device.
Di Zhang   +19 more
wiley   +1 more source

Dynamic analysis of runout correction in milling [PDF]

open access: yes, 2010
Tool runout and its effects is an important area of research within modelling, simulation, and control of milling forces. Tool runout causes tool cutting edges to experience uneven forces during milling.
Diez Cifuentes, Eduardo   +3 more
core   +2 more sources

Multiscale Structuring of Hydroxyapatite via Two‐Photon Lithography of Nanocomposites

open access: yesAdvanced Functional Materials, EarlyView.
Hydroxyapatite scaffolds are of great interest in bone tissue engineering applications, ranging from 3D cell culture to regenerative medicine. Using two‐photon lithography of a transparent nanocomposite, hydroxyapatite microstructures with features ranging from submicron to centimeter‐scale are fabricated. This allows to mimic the natural bone geometry,
Leonhard Hambitzer   +6 more
wiley   +1 more source

Determination of Chatter-Free Cutting Mode in End Milling

open access: yesЖурнал інженерних наук
Chatter accompanies the cutting process and is the main obstacle to achieving precision and productivity in milling operations. To reduce the amplitude of vibrations, it was proposed to use a stability lobes diagram (SLD) when assigning cutting modes ...
Yuri Petrakov   +4 more
doaj   +1 more source

The application of response surface method to optimization of precision ball end milling

open access: yesMATEC Web of Conferences, 2017
This paper is focused on the multi criteria optimization of precision ball end milling process of hardened 55NiCrMoV6 steel. The proposed method enables the selection of optimal input parameters which affect the minimization of cutting forces and ...
Wojciechowski Szymon   +2 more
doaj   +1 more source

Burrs produced by end milling [PDF]

open access: yes, 1976
The operation of small precision mechanisms such as timers, switches, or actuators depends on burr-free, sharp-edged component parts. Traditional methods of producing these near-perfect edges on miniature parts are costly and not as precise or repeatable as some piecepart designs require.
openaire   +2 more sources

Raman Microscopy at the Organic–Inorganic Interfaces in Human Calcified Aortic Valves Shows the Co‐Existence of Whitlockite Crystals and Carbonated Hydroxyapatite‐Mineralized Collagen Fibrils

open access: yesAdvanced Functional Materials, EarlyView.
This study advances our understanding of aortic valve stenosis by capturing spatially resolved chemical and structural changes at the nanoscale. The findings highlight the potential of combined Raman and electron microscopy for understanding calcification mechanisms across diverse tissue types.
Robin H. M. Van der Meijden   +11 more
wiley   +1 more source

Investigation of machining stability in micro milling considering the parameter uncertainty

open access: yesAdvances in Mechanical Engineering, 2015
Micro milling can fabricate miniaturized components using micro end mill at high rotational speeds. A major obstacle that limits the productivity in machining operations is the presence of machine tool chatter.
Ziyang Cao, Hua Li
doaj   +1 more source

Methodics of use of engage movements in milling [PDF]

open access: yes, 2020
S neustálým růstem metod navrhování a jejich přístupností je vždy nutné zvýšit efektivitu výrobních operací. Jedním z prostředků pro zvýšení účinnosti je optimalizace řezných sil, které jsou součástí obráběcího procesu.
Mohamad Ghaith Almasri
core  

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