Research on Tooth Positioning and Mechanical Properties of Flexspline Tooth Rings with Harmonic Gear Clearance Assembly by Xing Jingzhong, Yang Ziyu, Chen Xiaoxia, Yao Yunpeng

“…To reveal the mechanical properties and the tooth positioning on deformed flexspline tooth rings with fit clearance, taking elliptical cam wave generator as an example and considering the fit clearance caused by the clearance between the inner wall of flexsplines, the outer surface of wave generators, the clearance of flexible bearings and the elongation of neutral lines, a contact mechanical model of tooth rings is established. …”
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Practical Implications in Contemporary Dental Aesthetics—Shade Selection Assessment Using Intraoral Scanners by Alice Arina Ciocan Pendefunda, Cristina Gena Dascalu, Sebastian Bahrim, Cristina Iordache, Odette Luca, Magda-Ecaterina Antohe

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Research of Fractal Model of Tangential Stiffness for Contact Surface of Cylindrical Gear with Variable Hyperbolic Circular-arc-tooth-trace by Bai Qingsong, Hou Li, Wu Yang, Luo Lan, Wei Yongqiao

“…Based on the fractal theory and Hertz contact theory,the establishment of fractal model for tangential stiffness for contact surface of cylindrical gear with variable hyperbolic circular-arc-tooth-trace（ VH-CATT） is presented. …”
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New Perspectives on Tooth Wear by Peter W. Lucas, Ridwaan Omar

“…The most important aspects of the interaction between the tooth surface and wear particles would appear to be particle size, particle shape, their mechanical properties with respect to those of tooth tissues, and the influence of saliva.…”
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Effect of different restorative design and materials on stress distribution in cracked teeth: a finite element analysis study by Ting Liu, Yinghao Huang, Yue Li, Jiali Meng, Yajing Liu, Yuan Wei, Yequan Huang, Qian Zhou, Weidong Yang, Fuhua Yan, Xiang Wang, Yanan Zhu

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Saliva-acquired pellicle inspired multifunctional gargle with wet adhesion, photodynamic antimicrobial, and In situ remineralization properties for dental caries prevention by Jiayi Shi, Xuekai Qi, Ying Ran, Qiang Zhou, Yiqin Ding, Lujian Li, Youyun Zeng, Dongchao Qiu, Zhibin Cai, Xiaojun Cai, Yihuai Pan

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Development of Concave-convex Tooth Chainless Traction Walking System of Shearer by Guang Wang

“…The analysis results show that the gear-rail system has good mechanical properties and strong adaptability. Through analysis and selection of the processing equipment of the complex tooth surface walking wheel， the problem of production and processing is solved. …”
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Contact Characteristics Analysis of the Internal Meshing Gear Transmission Pair with Double Contact Points by Liang Dong, Li Ming, Jiang Peng, Xu Xiangyang, He Zeyin

“…The contact ellipse area of tooth surfaces of the gear pair with double contact points is solved by the numerical analysis method, and the influences of the design and tooth profiles parameters on the contact ellipse are discussed. …”
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Do Different Tooth Bleaching–Remineralizing Regimens Affect the Bleaching Effectiveness and Enamel Microhardness In Vitro? by Hamideh Sadat Mohammadipour, Parnian Shokrollahi, Sima Gholami, Hosein Bagheri, Fatemeh Namdar, Salehe Sekandari

“…Objective. Tooth bleaching may negatively affect the enamel surface properties, such as reduction in hardness values, and remineralizing agents can reverse these effects. …”
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Calculation of Tooth Root Bending Fatigue Life with Considering the Influence of Roughness Parameter R_a by He Di, Tang Jinyuan, Li Guowen, Zhou Wei

“…The stress concentration effect of surface topography plays an important role in the fatigue properties of gears. …”
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A Summary of the Research on the Effect of Gear Tooth Root Strengthening on Bending Fatigue Strength based on Residual Stress by Wang Zhen, Chen Long, Zheng Nan, Meng Xiangzhi, Yu Luosheng

“…With the continuous development of engineering technology, bending fatiguestrength has become an important limiting factor for the further development of gears, and bending fatigue failure is more dangerous than tooth surface failure. Based on the mechanism of gear bending fatigue fracture and the process of crack propagation, the influence factors of tooth root crack initiation, including tooth root transition fillet, grinding step and residual stress field, on tooth root bending fatigue properties are described. …”
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Research on Manufacturing Technology of Super-large Module Climbing Pinions by Ren Ning, Zhou Feng

“…The improved oxygen-gas NC flame cutting technology is used for rough teeth, which can make the tooth flank and tooth root after quenching and tempering treatment obtain surface hardness above 330 HB. …”
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Research of the Dynamic Mechanical Property of the Crown Gear Coupling by Li Feng, Lin Luping, Qi Xiaoli, Wang Min, Pan Ziwei, Zhang Xingquan, Tong Jinyu, Feng Jianyou

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Research of the Laser Cladding and Wear-resistance of Worn Surface of Heavy Load Gear of Mining Machine by Zhao Ning, Tao Li, Guo Hui, Zhang Mengqi

“…Finally a conclusion can be drawn,the re-manufacturing tooth surface produced by rectangular spot laser cladding has excellent wear resistance property,there is a high quality metallurgical bonding formed between laser cladding layer and the substrate gear,thus the work surface of gear has reached and surpassed the new product and properly matched the green re-manufacturing standard.…”
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The influence of lubricating coolant and processing modes on surface roughness during face milling of workpieces made of aluminum alloys by A. G. Kisel, D. S. Makashin

“…As a result of the research, it is found that coolants affect the quality of the resulting surface in different ways. The best surface quality is obtained at a cutting speed of V=283 m/min and a feed of S=0,02 mm/tooth using a BIOSIL-S coolant, which is due to rational cutting conditions and the physical properties of the coolant. …”
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Simulation of Wear in Involute Micro Gear by Shi Wankai, Wang Xu, Han Zhenhua, Liu Yin

“…In order to further study the microscopic wear mechanisms of micro gear,by using the classical Archard wear equation,combining with JKR（Johnson K L,Kendall K,Roberts A D） theory and GW（Greenwood and Williamson） rough surface model,a simulation model of the wear in micro gear is firstly established and the measures to reduce tooth wear are proposed.The simulation with considering the influence of single factor and multiple factor of surface attractive forces,surface roughness,the radius of curvature in asperity apex,material property etc.on tooth surface wear is carried out.The results show that an appropriate increasing in the surface roughness,reducing the radius of curvature in asperity apex,selecting the gear with larger parameter product value ηβσ which describing the rough surface,choosing the material which has a larger elastic modulus can alleviate wear and extend wear life.…”
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Alumina-enriched sunflower bio-oil in machining of Hastelloy C-276: a fuzzy Mamdani model-aided sustainable manufacturing paradigm by Binayak Sen, Abhijit Bhowmik, Gurbhej Singh, Vishwesh Mishra, Shantanu Debnath, Rustem Zairov, Muhammad Imam Ammarullah

“…Different volume fractions of Alumina nanoparticles (varying from 0 to 1 vol%) were mixed with sunflower bio-oil, and the physical properties, for instance, contact angle and dynamic viscosity, were analyzed to determine the optimal concentration of Alumina. …”
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Geometrical Error Modeling of Large Modulus Modified Wind Power Gear based on Form Grinding by Jiong Wang, Shihang Yu, Yuwen Sun

“…Due to properties of reducing impact，improving uneven load，and lowering noise in the meshing process，the technology of tooth surface modified are very common in the wind power gear. …”
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Examining the Abrasion Behaviour of PA 66 Gears in Different Cycles by Rifat Yakut, Hayrettin Düzcükoglu

“…The load capacity damage formation of the material was also analysed. The tooth surface temperature, corrosion depth of the tooth profile, tooth damage, and the tooth surface were examined with an scanning electron microscopy (SEM) and the corrosive behaviour of gears was analysed.…”
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A Forming Method and Theoretical Verification of Curvilinear Cylindrical Gears for Adjustable Contact Area by Xuegang Zhang, Yongchun Xie, Pengfei Wang

“…Adjusting the curvature radius of the cutter can form gear pairs with any length of contact area. A larger tooth surface contact area can improve the mechanical properties of the gear. …”
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