Results 31 to 40 of about 9,250,019 (280)

Precision testing method of five-axis NC machine tool based on ‘S’ specimen cutting

The Journal of Engineering, 2019
‘S’ specimen through its unique profile features makes it possible to fully mobilise the five-axis linkage function in the five-axis finishing stage. The continuous rotation direction of the rotating axis not only reflects the static error of the machine
Mengying Xu, Hongjun Wang
doaj   +1 more source

Inverse Kinematics of a Postprocessor for Five-Axis Machine Tools [PDF]

Advances in Intelligent Systems Research, 2015
Yuan-Lung Lai, Chien-Chih Liao, Hsiao-Ying Chan and Ching-Kuei Su 1 Department of Industrial Education and Technology, National Changhua University of Education, Changhua, Taiwan, R.O.C. 2 Intelligent Machine Tool Technology Center, Industrial Technology Research Institute, Taichung, Taiwan, R.O.C.
Ching-Kuei Su, Hsiao-Ying Chan, Chien-Chih Liao, Yuan-Lung Lai   +3 more
openaire   +1 more source

Spatial Expression of Assembly Geometric Errors for Multi-axis Machine Tool Based on Kinematic Jacobian-Torsor Model

Chinese Journal of Mechanical Engineering, 2023
Assembly geometric error as a part of the machine tool system errors has a significant influence on the machining accuracy of the multi-axis machine tool.
Ang Tian, Shun Liu, Kun Chen, Wei Mo, Sun Jin   +4 more
doaj   +1 more source

Influence of Tool Length and Profile Errors on the Inaccuracy of Cubic-Machining Test Results

Journal of Manufacturing and Materials Processing, 2021
A cubic-machining test has been proposed to evaluate the geometric errors of rotary axes in five-axis machine tools using a 3 × 3 zone area in the same plane with different tool postures. However, as only the height deviation among the machining zones is
Zongze Li, Hiroki Ogata, Ryuta Sato, Keiichi Shirase, Shigehiko Sakamoto   +4 more
doaj   +1 more source

R-Test Analysis Software for Error Calibration of Five-Axis Machine Tools – Application to a Five-Axis Machine Tool with Two Rotary Axes on the Tool Side –

International Journal of Automation Technology, 2015
The R-test measures the three-dimensional displacement of a precision sphere, attached to a machine spindle, by using three displacement sensors fixed to the machine’s table. Its application to error calibration for five-axis machine tools has long been studied.
Soichi Ibaraki, Yu Nagai, Hisashi Otsubo, Yasutaka Sakai, Shigeki Morimoto, Yosuke Miyazaki   +5 more
openaire   +2 more sources

A Ball Bar Measurement Scheme with Single-Axis Rotation Modes for Position-Independent Geometric Error Identification in Dual Rotary Table Five-Axis Machine Tools

Sensors
Position-independent geometric errors (PIGEs) of rotary axes are critical factors limiting the machining accuracy of five-axis machine tools. Aiming at the accurate identification of rotary-axis PIGEs for dual rotary table five-axis machine tools, this ...
Jinlong Zhang, Hongtao Yang, Zhaoyao Shi
doaj   +1 more source

Automatic planning for machine tool calibration: A case study [PDF]

, 2012
Machine tool owners require knowledge of their machine’s capabilities, and the emphasis increases with areas of high accuracy manufacturing. An aspect of a machine’s capability is its geometric accuracy. International Standards and best-practice guides
P. Gregory, Parkinson, Simon, Fletcher, Simon, S. Fletcher, Crampton, Andrew, Fletcher, S., A. Crampton, Longstaff, Andrew P., S. Parkinson, Gregory, Peter, A.P. Longstaff, Crampton, A.; id_orcid, Longstaff, A. P.; id_orcid, Parkinson, S.   +13 more
core   +1 more source

Study on the Digital Intelligent Diagnosis of Miniature Machine Tools

Applied Sciences, 2021
Several industries are currently focusing on smart technologies, high customization, and the integration of solutions. This study focuses on the intelligent diagnosis of digital small machine tools.
Tzu-Chi Chan, Ze-Kai Jian, Yu-Chuan Wang
doaj   +1 more source

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

FEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri, Ayaka Nagasato‐Ichikawa, Keita Iida, Shuhei Kimura, Akira Imamoto, Mariko Okada   +5 more
wiley   +1 more source

A Multidimensional Performance Evaluation Method for Blade‑Specialized Five‑Axis Machining Centers

Nanjing Hangkong Hangtian Daxue Xuebao
Machining of aero‑engine blade‑type complex curved‑surface parts places stringent requirements for high accuracy， stability， and efficiency on five‑axis CNC machine tools. To assess the suitability of domestic five‑axis CNC equipment for this application，
LIN Zhiqiang, LU Chengbin, LI Jia, ZHANG Jiacheng, WU Qixun, ZHAO Guolong   +5 more
doaj   +1 more source