Study on Effect of Ultrasonic Vibration on Grinding Force and Surface Quality in Ultrasonic Assisted Micro End Grinding of Silica Glass by Zhang Jianhua, Zhao Yan, Zhang Shuo, Tian Fuqiang, Guo Lanshen, Dai Ruizhen

“…The experiment results demonstrate that grinding forces are significantly reduced by introducing ultrasonic vibration into conventional micro end grinding (CMEG) of silica glass; ultrasonic assistance causes inhibiting effect on variation percentages of tangential grinding force with grinding parameters; ductile machining is easier to be achieved and surface quality is obviously improved due to ultrasonic assistance in UAMEG. …”
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Using a Region-Based Convolutional Neural Network (R-CNN) for Potato Segmentation in a Sorting Process by Jaka Verk, Jernej Hernavs, Simon Klančnik

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新型机加工弹簧静压状态下的应力集中研究 by 王立超, 周燕飞

“…The stress concentration at the end of spiral groove is very serious during the static tension and compression of the new machined spring,which has a great influence on the strength and fatigue life of the spring.The influence of spring basic parameters on the stress concentration coefficient was analyzed by ANSYS software,and the theoretical criterion for the existence of stress concentration in machined springs is determined.The effects of tangential stress release hole on compression deformation and stress concentration coefficient were investigated; Based on the strength theory and bending theory of curved beam,the formula of maximum equivalent stress without stress concentration was deduced.The results show that when the ratio of the width of the spiral groove to the pitch is less than 0.5,stress concentration occurs in machined springs with the middle diameter between 15 mm ～ 35 mm.The stress concentration can be basically eliminated by cutting stress release hole at the end of spiral groove and controlling its size to be close to the height of rectangular section.The error between the equivalent stress value of the inner ring and the simulation value is less than 3%.It provides an important reference for the subsequent engineering design and application of the new spring.…”
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Mathematical modeling of hydrodynamic processes in the liquid nucleus of an ingot by Yu. A. Samojlovich, V. I. Timoshpolsky, I. A. Trusova, Yu. V. Djachenko, I. L. Numeranova

“…These models can be used while choosing rational parameters of CMEM machines and for development of continuous filling process control algorithms.…”
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THEORETICAL INVESTIGATION OF INTERMEDIATE ELEMENT MOTION DYNAMICS OF ACOUSTIC OSCILLATING SYSTEM AT ITS VIBRO-IMPACT OPERATION MODE by M. G. Kiselev, A. A. Novikov

“…The dependences reflecting the influence of acoustic and technological parameters on time and force characteristics of interaction between the intermediate element and the surface to be machined have been established and investigated.…”
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MODELING OF A DUPLEX MILLER AND CONDITIONS OF FORMATION OF TREATMENT OF WHEEL PAIRS OF MAIN ELECTRIC CARDS, DUAL CARS, ELECTRO SECTIONS by Victor Shapovalov, Alexandr Permyakov, Alexander Klochko

“…The article solves the following  tasks: substantiation of the importance of upgrading the most promising designs of "duplex" mills, taking into account the reduction of vibrations due to chip crushing, to increase tool wear resistance, machining accuracy, reduce tool readjustment time and, accordingly, reduce equipment downtime, increase processing productivity, determine the mathematical apparatus for calculating model parameters; development of a method for modeling and optimization of shaping processes in the processing of locomotive wheel sets. …”
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Heuristic modeling of the process of milling aviation parts with opposed end mills by synthesis of a predictive model by E. A. Shestakova, V. O. Ievlev, R. M. Yanbaev

“…The influence of the main negative factors affecting the quality of machined surfaces is revealed. Optimal schemes for machining with opposed cutters are proposed. …”
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Optimization of Hydrogen Supercritical Oxy-Combustion in Gas Turbines by Sylwia Oleś, Jakub Mularski, Dariusz Pyka, Halina Pawlak-Kruczek, Artur Pozarlik

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STUDY ON THE INFLUENCE OF WEDM PROCESSING REGIMES ON THE QUALITY OF ARMOR STEEL by OANA-GEORGETA GHIORGHE, CAROL SCHNAKOVSZKY, EUGEN HERGHELEGIU, CATALIN TAMPU

“… The aim of the current paper is to analyze the influence of process parameters on the dimensional accuracy of parts manufactured by Ramor 550 and Ramor 400 armored steel, using the wire electrical discharge machining (WEDM). …”
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Study on surface quality of GH4169 superalloy milling with ultrasonic synergistic nanofluid minimal quantity lubrication by Xuezhi Wang, Zixiang Mei, Xingchao Wang, Ning Hou, Minghai Wang

“…However, its high hardness presents significant machining challenges, including rapid tool wear and poor surface quality. …”
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Cavity Design for Surface Textured Sheets in Metal Forming by Schumann Philipp, Martin Daniel, Serra Otavio Moro, Groche Peter

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Ways to improve the safety of operators of self-propelled vehicles by Belova T.I., Sukhov S.S., Konchits S.V., Filippov A.A.

“…In order to manage the safety of work of operators of self-propelled transport machines (STM) proposed a security model of STM in the form of a two-unit probabilistic model, which allows for semi-optimum parameters of the speed limit and to increase the reliability of protection of workers through the use of the proposed technical device.…”
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Residual Vibration Reduction in Flexible Systems Based on Trapezoidal Velocity Profiles by Xining Cui, Yi Fang, Chaochen Gu

“…Then, the relationship between the trajectory parameters and the vibration response is investigated. …”
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Surface Performance of Titanium Alloy Brake Shell Polished by Industrial Robot Based on Digital Twin by Haijun Zhang, Shengwei Chen, Hui Wang, Yan Qin

“…On this basis, the influence law of polishing parameters on surface roughness is analyzed through physical tests, and orthogonal experiments are used to optimize the polishing parameters. …”
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THE ANALYSIS OF THE EVOLUTION OF THE FUNCTIONAL GEOMETRY OF THE TOOL AT THE LATHING WITH A TRANSVERSE ADVANCE by Dan DOBROTĂ, Mădălin TOMESCU

“…The role of processing by machining is to generate surfaces that have to meet the requirements imposed by the designer through the execution drawing of the piece. …”
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Meta-heuristic algorithm based optimization studies in cryogenic and conventional milling of magnesium alloy AZ91 by Vikas Marakini, Srinivasa Pai P, Grynal D’Mello, Udaya K Bhat, DineshSingh Thakur, Bhaskara P Achar

“…The surface finish of a machined product is essential for assessing its quality and other attributes. …”
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Method planning for deep drawing in the production of workpieces with variable shapes by Krimm Richard, Hübner Sven, Schmiele Dennis, Hinz Lennart, Nagel Malte, Gellermann Jan-Ulrich

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Design of a New Catheter Operating System for the Surgical Robot by Xu Ma, Jinpeng Zhou, Xu Zhang, Yang Qi, Xiaochen Huang

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Analysis of Entry and Exit Hole Delaminations During Drilling of Jute/Palm Fiber Reinforced Hybrid Composites Using HSS Drill Bits by Mohamed Slamani, Abdelmalek Elhadi, Salah Amroune, Mustapha Arslane, Othman Y. Alothman, Omar Awayssa, Jean-François Chatelain, Mohammad Jawaid

“…These findings emphasize the critical role of machining parameters in controlling drilling defects and improving the integrity of hybrid composite materials. …”
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Mathematical modelling and optimization of cutting conditions in turning operation on MDN 350 steel with carbide inserts by Syed Adil, A. Krishnaiah, D. Srinivas Rao

“…But due to their high hardness, they pose machining problems. Therefore, the current work is intended to identify suitable cutting conditions for machining of hard metal components by carrying out turning experiments.MDN 350 steel is considered as the subject hard metal in the present work, as the literature on machining experiments on the aforementioned metal is limited and there is a wide scope of research for improving its machining performance. …”
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