Results 11 to 20 of about 3,343 (256)

Research on a Five-Axis Machining Center Worktable with Bionic Honeycomb Lightweight Structure [PDF]

Materials, 2020
The processing of high-precision aerospace parts requires not only ultra-precision machine tools, but also high-efficiency processing. However, in order to realize high-efficiency processing, besides optimizing the system and process parameters, some subversive research can also be done on the machine tool structure.
Lai Hu, Jun Zha, Fan Kan, Hao Long, Yaolong Chen   +4 more
openaire   +3 more sources

A cutter contacting point trajectory prediction method combining harmonic functions and dimensionality reduction for improving machining precision in flat-end milling [PDF]

Scientific Reports
In five-axis machining, deviations between actual and theoretical cutter contacting (CC) point trajectories lead to nonlinear errors, adversely affecting machining precision.
Liangji Chen, Haohao Xu, Huiying Li, Hansong Gao, Haixiong Wang   +4 more
doaj   +2 more sources

Intelligent machining error prediction and compensation system based on convolutional neural networks and improved genetic algorithm [PDF]

Scientific Reports
Machining errors continue to hinder dimensional accuracy in precision manufacturing. These errors arise from complex, nonlinear couplings among thermal deformation, tool wear, and fixture deviations—phenomena that traditional empirical models and ...
Wenfeng Bai
doaj   +2 more sources

Research on CNC machining technology of straight bevel gears based on hypocycloids [PDF]

Scientific Reports
Bevel gear transmission is characterized by strong load capacity, stable transmission, and compact structure. It is a key component in power transmission systems for vehicles, ships, machine tools, oil drilling equipment, aerospace, and other industries.
Chong Tian, Taiyong Wang, Ying Tian, Xinyu Zhang   +3 more
doaj   +2 more sources

Optimization method for complex surface partitioning and cutting parameters in 5-axis machining [PDF]

MATEC Web of Conferences, 2022
For complex surfaces with variable geometric features and high processing requirements, the current stage still uses more conservative machining cutting parameters to generate five-axis machining tool positions, which inevitably leads to some parts not ...
Chen Liangji, Li Zhiguang, Liu Zhi, Wei Zisen   +3 more
doaj   +1 more source

Nonlinear error control of five-axis machining singular region [PDF]

MATEC Web of Conferences, 2022
Aiming at the singular problem of large nonlinear error caused by the extreme change of rotation in five axis NC machining of complex surface. An optimization algorithm of tool path in singular region is proposed.
Chen Liangji, Liu Zhi, Li Zhiguang, Wei Zisen   +3 more
doaj   +1 more source

Feasibility of 8-Shaped Motion Test for Five-Axis Machining Center

International Journal of Automation Technology, 2023
ISO 10791-7, which specifies the machining accuracy test standard for machining centers, and ISO 10791-6, which specifies the interpolation motion test standard, were revised in 2014 to include five-axis machining centers (5-axis MCs). In addition, cone frustum test, which has been used as the National Aerospace Standard (NAS), was revised and ...
Yukitoshi Ihara, Souma Kajino, Yuto Inoue   +2 more
openaire   +2 more sources

Parametric Model Analysis, Geometrical Characteristics and Tool Trajectories to Surface Roughness when Machining the Cycloid Screw by a Five-Axis Milling Machine

Journal of Machine Engineering, 2022
To improve the screw machining accuracy in modern air compressors. This paper investigates three main issues during the development process for cycloid screw machining methods on five-axis CNC machine tools with high precision and efficiency.
Van Bong Pham, Nguyen Van Thien, Van Que Nguyen, Trinh Nguyen Duy, Duy Khanh Nguyen, Dung Hoang Tien   +5 more
doaj   +1 more source

Investigation on Finished Surface Machined by Five-axis Machining Center

Journal of the Japan Society for Precision Engineering, 2009
This study describes the machining of the fine surfaces with a ball nose end-mill tool by a five-axis controlled machining center. In the present paper, we demonstrate that it is effective to maintain a constant contact angle between an end-mill ball nose and a work surface in machining in order to obtain the fine machined surface because this makes it
HIROGAKI, Toshiki, AOYAMA, Eiichi, OGAWA, Keiji, KAWAGUCHI, Tsugutoshi, SUEDA, Hidenori, SHUUCHI, Ryou   +5 more
openaire   +3 more sources

Improvement of machining accuracy under constant feed speed at milling point with a five axis controlled machining center based on Advanced control Method

Nihon Kikai Gakkai ronbunshu, 2017
Recently, a novel manufacturing technology has spread out with a five-axis machining center, which is controlled by three linear axes and two rotary axes, because the synchronous control technologies make it feasible agilely to create a three-dimensional
Takamaru SUZUKI, Yuma MARUYAMA, Toshiki HIROGAKI, Eiichi AOYAMA   +3 more
doaj   +1 more source