Results 61 to 70 of about 1,334 (173)

Prediction and reduction of cycle time for five-axis CNC machine tools

open access: yes, 2014
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 ...
openaire   +1 more source

A Study of Tool Wear Prediction Based on Digital Twins

open access: yesJournal of Harbin University of Science and Technology
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
doaj   +1 more source

A method to manufacture spiral bevel gears by equivalent completing

open access: yesMechanics & Industry
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
doaj   +1 more source

A Methodology for Acceleration Signals Segmentation During Forming Regular Reliefs Patterns on Planar Surfaces by Ball Burnishing Operation

open access: yesJournal of Manufacturing and Materials Processing
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
doaj   +1 more source

Design And Research on Machining Orientation Control Based on Five Axis CNC Machine Tools

open access: yesHighlights in Science, Engineering and Technology
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 ...
openaire   +1 more source

Research on a gingival line extraction method to automatically process invisible braces

open access: yesAlexandria Engineering Journal
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
doaj   +1 more source

MOTION PRECISION ANALYSIS OF PERMANENT MAGNET SYBCHRONOUS GRINDING MOTORIZED SPINDLE

open access: yesJixie qiangdu, 2020
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
doaj  

A New Synthesis Error Modeling and Compensating Algorithm of the Five-axis Machine Tools

open access: yes工程科学与技术, 2013
: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]

open access: yesComputer-Aided Design and Applications, 2019
Ren-Jyue Hong, Syh-Shiuh Yeh
openaire   +1 more source

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