Results 101 to 110 of about 64,749 (307)

Theoretical and Experimental Investigation of Surface Textures in Vibration-Assisted Micro Milling

open access: yesMicromachines
Vibration-assisted micro milling is a promising technique for fabricating engineered mi-cro-scaled surface textures. This paper presents a novel approach for theoretical modeling of three-dimensional (3D) surface textures produced by vibration-assisted ...
Bowen Song   +5 more
doaj   +1 more source

Chip pattern, burr and surface roughness in laser assisted micro milling of Ti6Al4V using micro ball end mill

open access: yesJournal of Mechanical Engineering and Sciences, 2018
The effectiveness of laser heating could easily fluctuates when the uncut chip thickness are extremely inconsistent. In the case of using micro ball end mill tool, rubbing mechanism is inevitable due to its radial shape geometry.
Z. Mohid, E.A. Rahim
doaj   +1 more source

Helium Ion Microscopy [PDF]

open access: yes, 2014
Helium Ion Microcopy (HIM) based on Gas Field Ion Sources (GFIS) represents a new ultra high resolution microscopy and nano-fabrication technique. It is an enabling technology that not only provides imagery of conducting as well as uncoated insulating ...
Hlawacek, Gregor   +3 more
core   +2 more sources

A Tri‐Culture Heart‐on‐a‐Chip Platform With iPSC‐Derived Cardiac Cells for Predictive Cardiotoxicity Testing

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents the first entirely isogenic heart‐on‐chip, unifying cardiomyocytes, fibroblasts, and endothelial cells from a single iPSC source. The platform reveals a critical biological insight: the endothelium actively shields cardiac tissue from drug‐induced toxicity, challenging the predictive accuracy of conventional, avascular models for ...
Karine Tadevosyan   +12 more
wiley   +1 more source

Dynamic Modeling for Chatter Analysis in Micro-Milling by Integrating Effects of Centrifugal Force, Gyroscopic Moment, and Tool Runout

open access: yesMicromachines
During micro-milling, regenerative chatter will decrease the machining accuracy, destabilize the micro-milling process, shorten the life of the micro-mill, and increase machining failures.
Xiaoli Liu   +5 more
doaj   +1 more source

The influence of surface treatment of PVD coating on its quality and wear resistant [PDF]

open access: yes, 2019
The article deals with a determination of the influence of a cutting edge preparation on the quality and wear resistance of coated cutting tools. Cutting inserts made from a sintered carbide with a deposited layer of PVD coating were selected for ...
Malotová, Šárka   +3 more
core   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

open access: yesAdvanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu   +3 more
wiley   +1 more source

Application of Ultra-Small Micro Grinding and Micro Milling Tools: Possibilities and Limitations

open access: yesMicromachines, 2017
Current demands for flexible, individual microstructures in high quality result in high requirements for micro tools. As the tool size defines the minimum structure size, ultra-small tools are needed.
Benjamin Kirsch   +3 more
doaj   +1 more source

Automatic polishing process of plastic injection molds on a 5-axis milling center

open access: yes, 2009
The plastic injection mold manufacturing process includes polishing operations when surface roughness is critical or mirror effect is required to produce transparent parts.
Pessoles, Xavier, Tournier, Christophe
core   +2 more sources

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