Results 11 to 20 of about 5,459,981 (199)
MODELLING AND ANALYSIS OF CHATTER MITIGATION STRATEGIES IN MILLING [PDF]
, 2013 Machining stability plays a major role in improving machine tool performance and product quality. Uncontrolled chatter phenomenon causes too many defects and problems in manufacturing industry such as increased surface roughness, tool wear and even ...
Saleh, Khaled
core +6 more sources
Some aspects about milling : expert system for cutting parameters selection and control designs [PDF]
, 2006 Milling is a mechanical process which consist of the relative movement between feeding the work-piece and rotating the multitooth cutter, to remove material from the work-piece.
De la Sen, Manuel +2 more
core +8 more sources
Optimisation of variable helix end milling tools [PDF]
, 2010 High productivity, low cost and high profits are important issues in aerospace, automotive and tool/die metal manufacturing industries. Machining processes are widely used in manufacturing operations for metal manufacturing rather than casting and ...
Yusoff, Ahmad
core +7 more sources
Proposal of novel chatter stability indices of spindle speed variation based on its chatter growth characteristics [PDF]
, 2020 Chatter is one of the most critical problems that causes poor surface quality and restriction of machining efficiency. Spindle speed variation (SSV) is a well-known technique for suppression of regenerative chatter. However, in the authors’ understanding,
Jung, Hongjin +3 more
core +1 more source
Chatter Control by Spindle Speed Variation in High-Speed Milling [PDF]
, 2009 High-speed milling operations are often limited by regenerative vibrations. The aim of this paper is to analyze the effect of spindle speed variation on machine tool chatter in high-speed milling. The stability analysis of triangular and sinusoidal shape
Arnaud, Lionel +3 more
core +1 more source
Proposal of novel spindle speed variation profile with constant acceleration rate for improvement of chatter stability [PDF]
, 2021 Spindle speed variation (SSV) is one of the effective methods which suppresses regenerative chatter. However, regenerative chatter can grow even if SSV is applied. In the previous work, the chatter growth characteristics in SSV were clarified.
Jung, Hongjin +3 more
core +1 more source
MN•CS•IO System: Cross‐Species Study for HBB Function in High‐Altitude Hypoxia Adaptation
Advanced Science, EarlyView.We developed an integrative mesh‐nanorod sorting, chitosan nanoparticle delivery, and intraosseous injection (MN•CS•IO) system to investigate HBB in high‐altitude hypoxia adaptation. Transplanting Tibetan animals' HBB‐modified Lin‐ cells into mice achieved 95.59% transfection efficiency and 8.15% HBB expression. High‐altitude HBB recipients upregulated
Wenqiao Hui +18 more
wiley +1 more source
3D Closed‐Loop Navigation of Magnetic Microswimmers Using Vision‐Derived Depth Feedback
Advanced Intelligent Systems, EarlyView.A planar magnetic microswimmer is navigated in three dimensions under a standard microscope. Image defocus supplies a real‐time depth cue, and model‐predictive control with A* planning steers the body on surfaces and in free swimming. Axial position is regulated by propulsion alone, without magnetic field gradients or extra cameras.
Yasin Cagatay Duygu +2 more
wiley +1 more source
Animal Research and One Health, EarlyView.Dietary glutamine (Gln) supplementation increased the ATP levels and promoted cell proliferation in the rumen epithelium of feed‐restricted yaks. Besides, Gln inhibited ROS accumulation and reduced oxidative damage and apoptosis in the rumen epithelium of feed‐restricted yaks.
Ziqi Yue +10 more
wiley +1 more source
Genetic Diversity, Adaptation, Wild Introgression, and Coat Color Mutation of Golden Yak
Animal Research and One Health, EarlyView.Genetic diversity, adaptation, wild introgression, and coat color mutation of golden yak from two populations on the Qinghai‐Xizang Plateau. ABSTRACT The golden yak lives on the Qinghai‐Xizang Plateau with a golden coat and adapts to high altitudes and strong ultraviolet environment. The golden coat is a prominent phenotype in many domesticated species,
Huixuan Yan +15 more
wiley +1 more source