MODELING OF ROUGH ROTARY MILLING OF CRANKSHAFT PINS by Kacper CIEŚLAR, Stanisław PŁONKA

“…Next, the spline curves were brought to a common coordinate system, rotating them at an angle resulting from the positioning of the cassettes with cutting inserts in the body of the disc milling cutter. …”
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Prediction of the Reaming Torque Using Artificial Neural Network and Random Forest Algorithm: Comparative Performance Analysis by M. C. Rakshith, Raghavendra C. Kamath, G. S. Vijay

“…The present study compares the use of ANN and Random Forest to analyze the data from reaming operations to predict the torque and compares it with those of the Random Forest method and the polynomial regression model. The model is trained and tested using a well-structured dataset that includes multiple input parameters (e.g., material, tool radius, and rotation angle) and the related reaming outputs (e.g., torque) in the suggested supervised learning method. …”
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СOMBINED LABORATORY ABRASION TEST OF WORKING TOOLS MATERIALS by S. A. Sidorov, S. N. Potkin, D. A. Mironov, I. V. Liskin

“…The authors developed the method of a research of materials wear with use of two stands. …”
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Distribution Characteristics of Machining Error in Turning Large Pitch External Thread by ZHANG Wei, ZHENG Min-li, JIANG Bin, LI Zhe, DING Yan

“…When we turn large pitch external threads with axial layered cutting method, the formation process of thread surface is unstable due to the influence of spindle rotation error, tool wear and vibration, and the distribution of processing errors along the axis is diverse. …”
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Reducing critical effects of torsional vibrations induced by PDC bits during rock destruction by B. A. Ovezov, K. O. Shcherbakova, L. R. Kalendarova, P. A. Romanov, D. A. Kuznetsova

“…If torsional vibration occurs due to the cutting action of the bit, then the fight against this process is focused on the design of the bit and operational parameters, the load on the bit and the speed of rotation of the bit. …”
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Simulation-Based Analysis of Pressure Distribution on Rotary Soil Loosener Blades by V. I. Myalenko

“…These measurements facilitated the development of a regression equation that defines the external loading characteristics of the loosener blades. (Conclusions) Soil cutting during loosening with a rotary soil loosener occurs through three cutting edges: the lower blade edge and the two side edges of the blade. …”
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Indoor Air Pollution Source Localization Based on Small-Sample Training Convolutional Neural Networks by Tiancheng Ye, Mengtao Han

“…By using the optimal cutting ratio (α = 0.25) and a rotation-enhanced dataset (θ = 10°, n = 36), the model reduced the cross-space sample requirement to 1/5 of that of the benchmark scenario while ensuring the accuracy of spatial representation. …”
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Numerical Analysis of the Mechanical Behavior and Failure Mode of Jointed Rock under Uniaxial Tensile Loading by Yang Zhao, Yongning Wu, Qing Xu, Lishuai Jiang, Wanpeng Huang, Peipeng Zhang, Zhongtao Niu

“…The effects of different joint angles (the inclination angle α, rotation angle β, and superimposed angle γ of α and β, where γ is the angle between the joint and horizontal plane), the density (n), and the rate of cutting area (RCA) of the specimen loading surface (LSS) on the tensile strength (σt), elastic modulus in tension (Et), and failure mode of the specimens were analyzed. …”
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Effect of toe box size on basketball-specific movement performance by Jialu Zhang, Jialu Zhang, Zhaowei Chu, Taoping Bai, Taoping Bai, Ming Zhang, Ming Zhang, Weiyan Ren, Zhongyou Li, Zhongyou Li, Zhongyou Li, Zhongyou Li, Wentao Jiang, Wentao Jiang, Wentao Jiang

“…Thirty basketball players (25 males, five females; aged 18–20 years) performed standardized 5-m sprints, 180° lateral shuffling, and 45° sidestep cutting in six shoe versions. These versions systematically altered the toe allowance dividing line (TADL) (0, 1.5, 3 mm) and the sole center line (SCL) rotation (0°, 2°). …”
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Characteristics determination for milling working equipment of excavator by I. S. Kuznetsov, S. V. Saveliev

“…A general view of the working equipment with the designation of the positions necessary for the study is given. Methods and materials. The concept of specific values of torque and power per one cutter of working equipment has been introduced. …”
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Automated combined unit with universal tillage adapter by B. Kh. Akhalaya, Yu. S. Tsench, A. V. Mironova

“…(Research purpose) The study aims to develop an automated combined unit equipped with a universal adapter designed to improve soil quality and increase the stability of the unit’s movement. (Materials and methods) The tillage adapter consists of two arc-shaped segments mounted at the front on a common axis that allows rotation. …”
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Flexible intramedullary nail fixation for paediatric tibial diaphysis fractures by Rojgar Anwar Tawfeeq, Omer Ameen Saeed

“…Nail protrusion and skin irritation were the most common complications, found in 10 patients (20%), and reoperation was done in three of them by cutting tip of the nail. Conclusion:Flexible intramedullary nails are effective and minimally invasive method for treatment of paediatric tibial diaphysis fractures; they control the length, angulations and rotation, as they provide stability through three points of fixations for each nail. …”
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A Normative Observational Study of the Relationship of the Philtral Ridges to the Columellar Base in South-Indian Population and its Significance on Cleft Lip Repair by Deyonna Deepthi Fernandes, Syed Altaf Hussain

“…Conclusion These finding assume a significance since, in a substantial proportion of the studied population, techniques of cleft lip repair such as the rotation advancement method, place a scar that crosses the upper third of the philtral ridge which may be undesirable.…”
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基于摆线旋分原理的飞刀加工及其刀具的结构设计 by 闫波, 李佳

“…The slide block slot and back taper are the main parts of automotive synchronizer gear sleeve.Because of the gear sleeve is inner surface and the surface shape is complicated,it is difficult to process.Firstly,the machining technology current situation of the slide block slot in the world is introduced.Secondly,the machining method based on the principle of cycloid rotational indexing is introduced and the theoretical machining error is analyzed from the mathematical model.Then,the mathematical model of flying cutter for cutting slide block slot is established.With the independent intellectual property rights of rotational indexing on NC machine tool,on the basis of general indexable cutter in market,the special cutting tool of the gear sleeve slide block slot is designed.Through practice test,it is proved that the cutting tool is suitable.…”
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Part distortion monitoring in additive manufacturing using machining by Jaydeep Karandikar, Akash Tiwari, Josh Harbin, Christopher Tyler, Scott Smith, Derril Vezina, Rob Caron

“…The workpiece geometry and distorted configuration was subsequently predicted for positional and rotational deviations to within 2 mm accuracy using synchronized tool position data with cutting power. …”
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Structural layout and operating parameters for a large rotor of a direct-flow bucket wheel type aggregator by V. A. Nikolayev

“…The direction of rotation of the small rotor shall be opposite to the direction of rotation of the large rotor in order to partially compensate for the reactive moment produced by the large rotor.…”
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Research on Failure Characteristics and Zoning Control Technology of Thick-Soft Surrounding Rock for Deep Gob-Side Entry Retaining by Jingke Wu, Wenbin Zhou, Hong Tao, Haowen Bai, Wei Yin, Wenhu Gu, Peng Zhang, Zejun Liu, Jiao Zhang

“…Systematic research is conducted on the lithologic characteristics, failure characteristics, and control methods of the surrounding rock. The research findings are as follows: (1) The low strength, softening, and water swelling of thick mudstone, as well as its cataclasis, dilatancy, and long-term creep under strong mining and high stress are the objective reasons for large deformation of the surrounding rock. (2) Due to the weak stability of the surrounding rock-support structure and low collaborative roof side bearing capacity, no complete supporting structure is formed with the supporting system, causing the support body in each area to be crushed one by one, which is the subjective reason for the deformation and failure of the surrounding rock. (3) The deformation and failure characteristics of thick and soft surrounding rock in gob-side entry retaining are primarily divided into eight types: roof bending and sinking type, roof cutting along filling body, rib spalling type, roof fall type, filling body rotation type, filling body crushing type, roof step type, and roof cutting along the coal side. …”
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Comparison of mechanical properties and shaping performance of ProGlider and ProTaper ultimate slider by Jeyi Song, Ji-Hyun Jang, Seok Woo Chang, Shin Hye Chung, Soram Oh

“…Abstract Background This study aims to compare design, phase transformation behavior, and torsional resistance of the ProGlider (PG) and ProTaper ultimate slider (PUS) and to compare the performance of two files in the glide-path preparation of a double-curved artificial canal. Methods Scanning electron microscopy, micro-computed tomography, and differential scanning calorimetry were used to characterize the samples. …”
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Sensorless Design and Analysis of a Brushed DC Motor Speed Regulation System for Branches Sawing by Shangshang Cheng, Huijun Zeng, Zhen Li, Qingting Jin, Shilei Lv, Jingyuan Zeng, Zhou Yang

“…Saw rotational speed critically influences cutting force and surface quality yet is often destabilized by variable cutting resistance. …”
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Design and test on vibration reduction for knife driving device of combine harvester by Wang Zhiming, Ma Guang, Lü Pengmin, Chen Ni

“…The angular velocity was equivalent to the rotation number of the crank wheel and was around 73 rad/s (700 r/min) in the clockwise direction. …”
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