Prediction and reduction of cycle time for five-axis CNC machine tools
The growing demand for high speed machining in aerospace, automotive and die and mold industry has directed the interest of research community towards prediction and reduction of machining cycle time. In this thesis, a cycle time prediction scheme is proposed for milling operations based on identified CNC machine dynamics in exact-stop and continuous ...
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A Study of Tool Wear Prediction Based on Digital Twins
In the context of the global intelligent transformation of manufacturing, digital twin technology, through the deep integration of physical entities and virtual models, provides an innovative path for the implementation of smart manufacturing. Taking the
LIU Minghao +4 more
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A method to manufacture spiral bevel gears by equivalent completing
As a transmission part for industrial application the manufacture of spiral bevel gear is particularly important. The present machining methods for manufacturing spiral bevel gears, including the so called five-cut method and completing method, have ...
Geng Longlong, Nie Shaowu, Jiang Chuang
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In the present study, an approach for determining the different states of ball burnishing (BB) operations aimed at forming regular reliefs’ patterns on planar surfaces is introduced.
Stoyan Dimitrov Slavov +1 more
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Design And Research on Machining Orientation Control Based on Five Axis CNC Machine Tools
This article establishes a model for machining orientation control of a five axis CNC machine tool based on methods such as constructing translation matrix, rotation matrix, and composite matrix. Using the optimal path and rotation angle search algorithm based on rotation transformation and composite transformation, the displacement of the machining ...
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Research on a gingival line extraction method to automatically process invisible braces
Gingival line cutting is the core process of invisible brace fabrication. It mainly relies on manual or semi-automatic cutting, which results in low efficiency and a lack of precision.
Wang Qin +4 more
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MOTION PRECISION ANALYSIS OF PERMANENT MAGNET SYBCHRONOUS GRINDING MOTORIZED SPINDLE
With the increasing requirements of the high-speed CNC machine tools for the motion accuracy of the spindle,it is necessary to study the accuracy of the permanent magnet synchronous( PMS) grinding motorized spindle.
GAO Feng +4 more
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A New Synthesis Error Modeling and Compensating Algorithm of the Five-axis Machine Tools
:In order to construct the high precision error compersation model,the topological relationship of machine kinematics was simplified and 59 independent error components were analyzed.Based on the rigid body kinematics with small error assumption,a new ...
要小鹏, 殷国富, 方辉
doaj
Calculation and Compensation Method for Fixture Errors in Five-Axis CNC Machine Tools [PDF]
Ren-Jyue Hong, Syh-Shiuh Yeh
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Comparative evaluation of marginal and internal fit of multi-unit fixed dental prostheses: A systematic review and meta-analysis of conventional versus digital impressions. [PDF]
Sinha A +5 more
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