Simulation of Double Circular Arc Profile Spiral Bevel Gear Form Grinding Machining based on VERICUT by He Zhiwei, Duan Jianzhong, Li Youzhi

“…The feasibility of machining double circular arc profile spiral bevel gear by numerical control forming grinding method is verified by VERICUT machining simulation.The tool path of the bevel gear and the tooth surface equation of the circular arc profile spiral bevel gear are studied，the axial cutting shape of the forming grinding wheel is obtained by the contact condition formula of the grinding surface and the tooth surface of the grinding wheel.Then，the selection criteria of the number of axes of the CNC forming gear grinding machine are proposed，and the models of the machine tool，forming grinding wheel and blank are established in VERICUT.Finally，the machining simulation of the double circular arc profile spiral bevel gear proves that the CNC forming grinding method can be used to process such gears，technical support for the application of CNC forming grinding on bevel gears.…”
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Simulation of Quadruple-arc Gear Form Grinding Machining based on VERICUT by Ren Zhongyi, Zhao Yi, Duan Jianzhong

“…The analysis results show that the simulation process can meet the design requirements,and the numerical control program is correct.…”
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Simulation Analysis of the Forming Process of Tapered Multi-blade Scraper Tool by Guo Erkuo, Ren Naifei, Wang Jie, Zhou Changlu

“…Numerical control power skiving is a modern and productive method in the manufacturing of cylindrical gears. …”
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Study of the Gear Shaping Processing Method for High Precision Herringbone Gear based on Symmetry Error Compensation by Zhao Chunhua, Liang Zhipeng, Deng Yingcheng, Pan Pengcheng, Zheng Siyu, Wang Chengkang, Zhong Xianyou

“…On the basis of that,the numerical control（ NC） programs for automatic checking the symmetry error is developed. …”
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Resources Scheduling Algorithm in Power Wireless Private Network Based on SDON by Ningzhe Xing

“…According to the characteristics of OFDM resource allocation and the numerical control separation and programmable feature of SDON, different scheduling methods are designed for different services. …”
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STUDY ON DESIGN AND TEST OF FULL LOADING DEVICE WITH AUTOMATIC DISPLACEMENT FOR TURNING CENTERS by HUI Ye, HUANG YuMei, LI Yan

“…In order to simulate the actual cutting situation accurately in measuring stiffness of Numerical Control（ NC）machine tool,a novel full loading method is presented.It is based on the changing of the cutting position as the cutting tool is subject to the action of full load of force and torque under machining process.According to distributing principle of cutting force,a full loading device has been developed through the coordinate transformation of force-bearing point and its direction.The ratio between several forces in various directions is verified by loading tests.Moreover,the device has been applied to stiffness distribution test of NC turning centers,and the displacement of every measured point is obtained when the cutting tool is at different positions.The text results provide referencing data for evaluating and improving construction of machine tool and find application in the prediction and modification of design scheme.…”
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Study on Lapping Position Control of Real Tooth Surface of Hypoid Gear by Yang Jianjun, Liu Linnan, Zhu Derong, Zhang Hua

“…The tooth contact analysis（ TCA） for the real measured tooth surface is applied to analyze the mathematic relationship between the adjusting parameters（ V/H/J） of lapping movement and the meshing position.The model of lapping point control over position and movement direction is established. Finally,a numerical control rolling test is carried out. The experimental results show that the whole tooth surface lapping of hypoid gears can be exactly realized.…”
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DESIGN AND FINITE ELEMENT ANALYSIS FOR MOVING SYSTEM STRUCTURE OF NC FORMING MACHINE by LIU LiMin, LIU BoQing, LIU Feng, DONG XiaoLi

“…The moving system is the most critical part of numerical control（ NC for short） forming machine to achieve its fundamental function,but also the most importent part that affect the processing accuracy. …”
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Accurate Design Method of the Skiving Tool for the Orthogonal Spur Face Gear by Tan Yongxu, Peng Xianlong

“…Solve the meshing condition of the cutting edge and the face gear, deduce the numerical control machining law, and carry out theoretical calculation and simulation machining of the face gear's tooth surface. …”
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THE DESIGN AND IMPLEMENTATION OF AN AUTOMATED CNC TYPEWRITER by George-Cristian Ene, Gabriela Bucur

“…The paper presents the essential theoretical elements related to the construction and operation of numerical control machines, starting from a study of the theoretical aspects related to the design of a CNC typewriter. …”
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The increase in efficiency of milling of small-sized grooves of shaped form in hard-to-reach places of molds for rubber-technical products by I. N. Drozdov, A. Yu. Popov

“…The purpose of this work is to improve the efficiency of processing gas-venting grooves of angular shape on molds for rubber technical products on curved surfaces by using the planning method on machines with computer numerical control.…”
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Study on the Influence Mechanism of Servo Gain Parameter on the Pitch Deviation Error of Tool Retracting Position by Zhao Chunhua, Liang Zhipeng

“…The pitch deviation error of tool retracting position is a critical problem during the machining process of gears with numerical control（NC） shaping machine.After analyzing the influence factors of gear machining accuracy,generating motion out-of-sync is identified as the primary cause of the pitch deviation error in the case of well controlling of geometric accuracy,motion error and positioning precision.In order to reduce the influence of gear installation error and measurement error on gear pitch deviation measurement precision,an online gear precision detection device is designed.According to the influence law of servo gain parameter on the control shaft of servo motor,several orthogonal gear shaping tests are carried out by changing the servo gain parameter.The test results prove that the generating motion out-of-sync of tool retracting position is the primary cause of the pitch deviation error of tool retracting position.Simultaneously,the influence law of servo gain parameter on the pitch deviation error of tool retracting position is analyzed and the corresponding parameter adjustment strategies are proposed.The study provides a new approach to solve the pitch deviation error problem of tool retracting position with NC shaping machine.…”
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Methods of processing of gas venting grooves of angular shape in matrices for rubber technical products by A. Yu. Shevchenko, A. Yu. Popov

“…The purpose of this work is to improve the efficiency of processing gas-venting grooves of angular shape on molds for rubber technical products on curved surfaces by using the planning method on machines with computer numerical control.…”
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Optimization of Forging Process Parameters and Prediction Model of Residual Stress of Ti-6Al-4V Alloy by Xiurong Fang, Liu Liu, Jia Lu, Yang Gao

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Terahertz Circular Dichroism Spectroscopy of 3D Chiral Metallic Microstructures Fabricated Using High Precision CNC Machining by Atsushi Ouchi, Saroj R. Tripathi

“…In this study, terahertz circular dichroism spectroscopic measurements of micrometer-sized metallic chiral helix arrays, fabricated using computer numerical control (CNC) machining, are presented. Experimental results demonstrate a giant circular dichroism of ±0.6 in an axial mode of operation for left- and right-handed arrays within a sub-terahertz frequency range. …”
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Modeling and Prediction Method for CNC Machine Tools’ Errors Based on Spatial Feature Points by Guohua Chen, Lin Zhang, Hua Xiang, Yong Chen

“…The method has the advantages of small interpolation operation, easy integration in the numerical control system, and high compensation precision. …”
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DESIGN OF BED SADDLE OF HIGH-SPEED PRECISION CNC LATHE BASED ON TOPOLOGY OPTIMIZATION by DUAN MingDe, LI Yan, GU JiaJia, ZHANG ZhuangYa

“…In order to meet the condition of high precision,efficiency and speed of modern NC machine tools and to improve the static,dynamic performance as well as lightweight design of their basic components,the design of bed saddle which is the key components of ADGM numerical control machine tool was optimized based on topology optimization method. …”
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RESEARCH OF QUALITY AND INFLUENCE FACTORS IN BLANKING LAMINATED COPPER SHEET by LIANG Yong, FAN YuJin, ZHENG HaiTao, LI ZheKun, HE Wei, TANG Jun

“…The application of laminated metal sheet in the numerical control busbar blanking process is increasingly wide. …”
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TOOL WEAR STATE MONITORING BASED ON WAVELET PACKET BP＿ADABOOST ALGORITHM by ZHU Xiang, XIE Feng

“…Aiming at the problems of less tool wear state data,low diagnostic efficiency,high maintenance cost and lack of effective diagnostic methods during CNC machine tool processing,A method of extracting features by wavelet packet analysis and kernel principal component analysis,and using BPAda Boost algorithm to diagnose tool wear state is proposed.The tool vibration signal and the cutting force signal are collected by installing an acceleration sensor on the machined workpiece of the numerical control machine tool and a force gauge on the workbench; Then the wavelet packet decomposition is performed on the signal to pass the signal through the low-pass filter and the high-pass filter of different dimensions,so that the conditional selection can be performed to form the energy value corresponding to the different frequency bands. …”
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A WR-2.8 band pseudoelliptic waveguide filter using TM110 and TE101 Dual-Mode cavities by Yao Chen, Yinian Feng

“…For verification, the proposed pseudoelliptic filter is fabricated by high-precision computer numerical control (CNC) milling technology which the measured machining tolerance is less than ± 5 μm. …”
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