Results 1 to 10 of about 6,421,048 (404)

Influence of the radius of the generatrix of flank surface on the geometric parameters of the cutting wedge of the twist drill [PDF]

E3S Web of Conferences, 2023
Drills with various flank surface shapes are widely used to machine holes. Drill teeth have flank surfaces of various shapes, flat, conical and helical.
Pivkin Petr, Grechishnikov Vladimir, Ershov Artem, Mironov Nikita   +3 more
doaj   +1 more source

Determining the force formulas while orthogonal shaped turning by tools with convex radial cutting edge [PDF]

E3S Web of Conferences, 2023
Orthogonal shaped turning is a non-free cutting process, because the main geometric and force parameters are variable while radial infeed of a tool: side cutting edge angle (SCEA), width and thickness of cut, rake angle and flank angle etc..
Moiseev Denis, Fominov Evgeny
doaj   +1 more source

Steel quality of rolling contact bearings produced by different manufacturers, used for mining equipment instrumentation [PDF]

E3S Web of Conferences, 2021
Severe operating conditions of mining equipment have a negative impact on the operating life of the rolling contact bearings used in such equipment.
Korotkov Aleksandr, Korotkova Lidiya, Voeth Stefan, Solentsov Roman   +3 more
doaj   +1 more source

Influence of the Support Structure on the Bandsawing Process when Separating LPBF Components from the Building Platform

Journal of Machine Engineering, 2022
The method of laser powder bed fusion (LPBF) is an additive manufacturing process and allows great freedom of component geometry due to the layer-by-layer structure.
Hans-Christian Moehring, Dina Becker, Clemens Maucher, Rocco Eisseler, Jonas Ringger   +4 more
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Solvent debinding and critical thickness of ultrafine cemented carbides by prepared injection molding

Fenmo yejin jishu, 2023
Ultrafine cemented carbides with the different thickness were prepared by metal powder injection molding, using WC–10Co with the particle sizes of 0.71 μm and 0.53 μm as the raw materials and the wax-based binder system as the binders.
LUO Xuequan, LIU Sunhe, WEN Guanghua
doaj   +1 more source

FEA Modelling of the Combined Hard TurningRolling Process Used at Bearing Rings [PDF]

MATEC Web of Conferences, 2021
In general, the production of bearings is a very large series production, which is why in production the technological lines are designed to process a single size of bearings.
Dogan Gures, Mehmet Ilhan, Chitariu Dragoş Florin, Dumitraş Cătălin Gabriel, Crîşmaru Vasile Ionuţ   +4 more
doaj   +1 more source

Charge Redistribution of Co₉S₈/MoS₂ Heterojunction Microsphere Enhances Electrocatalytic Hydrogen Evolution

Biomimetics, 2023
The electrocatalytic hydrogen evolution activity of transition metal sulfide heterojunctions are significantly increased when compared with that of a single component, but the mechanism behind the performance enhancement and the preparation of catalysts ...
Lili Zhang, Jitang Zhang, Aijiao Xu, Zhiping Lin, Zongpeng Wang, Wenwu Zhong, Shijie Shen, Guangfeng Wu   +7 more
doaj   +1 more source

Pre-Aging Effect on the Formation of Ω Phase and Mechanical Properties of the Al-Cu-Mg-Ag Alloy

Metals, 2022
In the present work, different aging treatments were performed to investigate the pre-aging effect on the formation of Ω phase and mechanical properties in Al-Cu-Mg-Ag alloy.
Puyou Ying, Changhong Lin, Zhiyi Liu, Song Bai, Vladimir Levchenko, Ping Zhang, Jianbo Wu, Tao Yang, Min Huang, Gang Yang, Meng Liu, Mengjia Li   +11 more
doaj   +1 more source

Why do cracks occur in the weld joint of Ti-22Al-25Nb alloy during post-weld heat treatment?

Frontiers in Materials, 2023
Ultrasonic pulse frequency tungsten inert gas welding technology was adopted to join Ti-22Al-25Nb alloy. There were some cracks in the Ti-22Al-25Nb alloy weld joint after post-weld heat treatment.
Ling Shao, Ling Shao, Ling Shao, Xinyu Zhang, Yingwei Chen, Liu Zhu, Liu Zhu, Sujun Wu, Qijie Liu, Weiwei Li, Weiwei Li, Na Xue, Na Xue, Zhibiao Tu, Zhibiao Tu, Tianle Wang, Jitang Zhang, Jitang Zhang, Sheng Dai, Sheng Dai, Xinxing Shi, Mengliang Chen   +21 more
doaj   +1 more source

Effect of applied load on the tribological properties of MoS2–TiL/MoS2–TiH nano-multilayer coating

AIP Advances, 2020
MoS2–TiL/MoS2–TiH coating (L and H are low and high power of the sputtered Ti target) possesses excellent tribological properties owing to its nano-multilayer structure.
Puyou Ying, Ping Zhang, Jianbo Wu, Min Huang, Changhong Lin, Tianle Wang, Yihang Fang, Vladimir Levchenko   +7 more
doaj   +1 more source