Results 31 to 40 of about 6,815,752 (285)

Investigation on Structural Mapping Laws of Sensitive Geometric Errors Oriented to Remanufacturing of Three-Axis Milling Machine Tools

Machines, 2022
Three-axis milling machine tools are widely used in manufacturing enterprises, and they have enormous potential demands for remanufacturing to improve their performance.
Wenzheng Ding, Zhanqun Song, Shuang Ding
doaj   +1 more source

Error estimation of machined surfaces in multi-axis machining with machine tool errors including tool self-intersecting motion based on high-accuracy tool swept volumes

Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21, 2017
A novel method is proposed for estimating the machining errors on machined surfaces caused by errors of multi-axis machine tools, such as geometric errors, based on a new generating method of tool swept volumes. In the proposed tool swept volume generation method, the boundary surfaces of the tool swept volumes are derived as triangular mesh models ...
ARAI, Wataru, TANAKA, Fumiki, ONOSATO, Masahiko   +2 more
openaire   +2 more sources

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

Research progress of machine tool thermal error modeling technology

Journal of Hebei University of Science and Technology, 2015
During cutting, machine tools are influenced by different heat sources, which induces machine thermal deformation, deviation and thermal error. In different machine errors, thermal error accounts for 40%~70% of total machine errors, which is the main ...
Qianjian GUO, Hongmei WANG, Aijun LI
doaj   +1 more source

A Method to Optimize Geometric Errors of Machine Tool based on SNR Quality Loss Function and Correlation Analysis

MATEC Web of Conferences, 2017
Instead improving the accuracy of machine tool by increasing the precision of key components level blindly in the production process, the method of combination of SNR quality loss function and machine tool geometric error correlation analysis to optimize
Cai Ligang, Li Jiaying, Cheng Qiang, Sun Bingwei, Wang Yan   +4 more
doaj   +1 more source

Error compensation for thermally induced errors on a machine tool [PDF]

, 1996
Heat flow from internal and external sources and the environment create machine deformations, resulting in positioning errors between the tool and workpiece. There is no industrially accepted method for thermal error compensation. A simple model has been selected that linearly relates discrete temperature measurements to the deflection.
openaire   +2 more sources

A particle swarm optimisation-based Grey prediction model for thermal error compensation on CNC machine tools [PDF]

, 2015
Thermal errors can have a significant effect on CNC machine tool accuracy. The thermal error compensation system has become a cost-effective method of improving machine tool accuracy in recent years.
Longstaff, Andrew P., Fletcher, Simon, Abdulshahed, Ali, Abdulshahed, Ali M., Longstaff, Andrew P.; id_orcid   +4 more
core   +2 more sources

Investigation of Tool Cooling and Heat Transfer Using Computational Fluid Dynamics Simulations

Journal of Machine Engineering
Thermal errors remain one of the biggest challenges for the precision of cutting machine tools. Aside from optimizations in the machine tool design and behaviour, optimal cutting process parameters and targeted usage of cutting fluid or alternative ...
Christian Naumann, Claus-Dieter Schmidt, Alexander Geist, Steffen Brier, Janine Glanzel, Philipp Klimant, Steffen Ihlenfeldt, Martin Dix   +7 more
doaj   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Kinematics Error Compensation for a Surface Measurement Probe on an Ultra-Precision Turning Machine

Micromachines, 2018
In order to enhance the measurement availability for manufacturing applications, on-machine surface measurement (OMSM) is integrated onto the machine tools, which avoids the errors caused by re-positioning workpieces and utilizes the machine axes to ...
Duo Li, Xiangqian Jiang, Zhen Tong, Liam Blunt   +3 more
doaj   +1 more source