Results 31 to 40 of about 4,489,694 (277)

An experimental study on the effect of tool geometry on tool wear and surface roughness in hard turning

Advances in Mechanical Engineering, 2020
The main purpose of this study is to investigate the influence of tool geometry (cutting edge angle, rake angle, and inclination angle) and to optimize tool wear and surface roughness in hard turning of AISI 1055 (52HRC) hardened steel by using TiN ...
Pham Minh Duc, Le Hieu Giang, Mai Duc Dai, Do Tien Sy   +3 more
doaj   +1 more source

Ductile-Brittle Transition at Large Negative Tool Rake Angles.

Journal of the Japan Society for Precision Engineering, 2000
Effects of tool rake angle on ductile-brittle transition in diamond turning of single crystal silicon are investigated. Straight-nosed diamond tools are used and rake angles are varied from -80°to 0°. Chips and machined surfaces are observed using scanning electron microscope and atomic force microscope, and micro cutting forces are measured with a ...
YAN, Jiwang, SYOJI, Katsuo, KURIYAGAWA, Tsunemoto   +2 more
openaire   +2 more sources

An Analysis of the Effect of Abrasive/Tool Wear on the Ductile Machining of Fused Silica from the Perspective of Stress

Micromachines, 2022
Understanding the influence mechanism of abrasive/tool wear on machining is the key to realize high-efficiency ultra-precision machining of fused silica.
Ming Li, Xiaoguang Guo, Song Yuan, Bingyao Zhao, Yongnian Qi, Shuohua Zhang, Dongming Guo, Ping Zhou   +7 more
doaj   +1 more source

Influence of Cutting Edge Shape on Residual Stresses of Cut Surface

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2010
In order to obtain basic information on the improving the surface integrity of machined surfaces, the relationship between the residual stress of cut surfaces and the cutting edge shapes of cutting tools was examined.
Hideyuki MIZUTANI, Mikio WAKABAYASHI
doaj   +1 more source

Effects of the size of built-up layer on the wear of cemented carbide tools in cutting of SUS304 stainless steel

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2021
Built-up layer (BUL) formed on the tool rake face during cutting has the tool protective effect. As BUL can change the shape of tool resulting in variation of rake angle and edge radius, it may have significant influences on the cutting phenomena such as
Xiaoqi SONG, Yukio TAKAHASHI, Weiming HE, Tohru IHARA   +3 more
doaj   +1 more source

Analyzing Cutting Temperature in Hard-Turning Technique with Standard Inserts Through Both Simulation and Experimental Investigations

Applied Sciences
The cutting temperature in hard turning is extremely high, which reduces tool life, lowers machined-surface quality, and affects dimensional control.
Pham Minh Duc, Le Hieu Giang, Van Thuc Nguyen   +2 more
doaj   +1 more source

Modelling and Optimization of Machining of Ti-6Al-4V Titanium Alloy Using Machine Learning and Design of Experiments Methods

Journal of Manufacturing and Materials Processing, 2022
Ti-6Al-4V titanium is considered a difficult-to-cut material used in critical applications in the aerospace industry requiring high reliability levels.
José Outeiro, Wenyu Cheng, Francisco Chinesta, Amine Ammar   +3 more
doaj   +1 more source

Orchestrating Anion–π+ Interactions to Accelerate Metal‐Free Room‐Temperature Phosphorescence

Angewandte Chemie, EarlyView.
Tuning anion–π+ interactions in pyridinium iodide contact ion pairs enables ultrafast metal‐free room‐temperature phosphorescence (540–605 nm) with radiative rates up to 5.2×105 s−1. Strong iodide→π+ charge‐transfer coupling, enhanced spin–orbit interactions, and dynamic ion‐pair organization accelerate intersystem crossing and emission, establishing ...
Eetu Hakkarainen, Corentin Montagne, Hao‐Cheng Lin, Chen‐Yu Lin, Khai‐Nghi Truong, Po‐Yu Chen, Anton Nechaev, Fabien B. L. Cougnon, Igor O. Koshevoy, Toni Eskelinen, Hao‐Wu Lin, Pi‐Tai Chou, Andrey Belyaev   +12 more
wiley   +2 more sources

Modeling Grinding Processes—Mesh or Mesh-Free Methods, 2D or 3D Approach?

Journal of Manufacturing and Materials Processing, 2022
The objectives of this study are mainly two: (1) to validate whether a single grain scratch process can be modeled in two dimensions under the assumption of plane strain, and (2) to select the best discretization approach to model a single grain scratch ...
Praveen Sridhar, Juan Manuel Rodríguez Prieto, Kristin M. de Payrebrune   +2 more
doaj   +1 more source

Bifurcation analysis of nose landing gear shimmy with lateral and longitudinal bending [PDF]

, 2009
We develop and study a model of an aircraft nose landing gear with torsional, lateral and longitudinal degrees of freedom. The corresponding three modes are coupled in a nonlinear fashion via the geometry of the landing gear in the presence of a nonzero ...
Thota, P, Thota, Phanikrishna, Lowenberg, Mark, Lowenberg, MH, Krauskopf, B, Krauskopf, Bernd   +5 more
core   +1 more source