Results 111 to 120 of about 13,938 (211)
First-place finish : imparting fine surface finishes when micromilling [PDF]
There are several key milling practices that help impart fine surface finishes in micromilling. They include running at ultrahigh spindle speeds, carefully monitoring chip load, employing climb milling when possible and using CAM software to develop ...
DeVor, R., Kennedy, B., Rosochowski, A.
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Background In connection with the war in Ukraine and the use of modern high-energy weapons by the enemy, the nature of injuries have changed. These changes require improvement of approaches to the treatment of patients with gunshot and mine-explosive ...
Oleksandr Buryanov +7 more
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Complex stamp forming of advanced thermoplastic composites [PDF]
The inherent advantages of thermoplastics over the traditional thermoset composite systems are well recognized in the aeronautics community. The main advantages are the much faster processing and the higher toughness.
Akkerman, R. +3 more
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The long-term mechanical integrity of non-reinforced PEEK-OPTIMA polymer for demanding spinal applications: experimental and finite-element analysis [PDF]
Polyetheretherketone (PEEK) is a novel polymer with potential advantages for its use in demanding orthopaedic applications (e.g. intervertebral cages). However, the influence of a physiological environment on the mechanical stability of PEEK has not been
Ferguson, Stephen +2 more
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Zhan Su,* Jie Zhang,* Peijie Tan, Songsong Zhu,* Nan Jiang* State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Oral & Maxillofacial Surgery, West China Hospital of Stomatology ...
Su Z, Zhang J, Tan P, Zhu S, Jiang N
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Microwave Photoelasticity: A Resonant Wavelength Approach Applied to PEEK Polymer [PDF]
Every nondestructive testing (NDT) technique has its unique set of advantages and limitations. Currently, the only existing noncontact NDT method capable of measuring sub-surface stresses, in optically opaque materials, at near-real-time speeds and over ...
Schemmel, Peter J., Waldstein, Seth W.
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Micromechanics of composite laminate compression failure [PDF]
The Dugdale analysis for metals loaded in tension was adapted to model the failure of notched composite laminates loaded in compression. Compression testing details, MTS alignment verification, and equipment needs were resolved.
Bradley, Walter L., Guynn, E. Gail
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Research Progress of 3D-Printed Polyetheretherketone in Implantable Medical Devices
Polyetheretherketone (PEEK) has emerged as a thermoplastic material of choice in the realm of implantable medical devices, owing to its high biocompatibility and exceptional mechanical strength.
Shangda ZHANG
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Towards a process simulation tool for the laseer assisted tape placement process [PDF]
A combined optical and thermal model for the laser assisted tape placement process is presented. The optical model adopts a ray tracing procedure, based on the Fresnel equations, to predict the incident heat flux on the tape and substrate near the nip ...
Akkerman, R. +2 more
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Experimental Evaluation of Wear Resistance of Polymer Materials Used in Piston Compressor Equipment
A new method is proposed for assessing the wear resistance of polymer materials according to the “finger — disk” friction scheme. It involves changing the geometry of the friction zone of polymer samples — the “finger” sphere is replaced by a truncated ...
Aleksey S. Brundukov +1 more
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