Results 91 to 100 of about 258,969 (302)

STRATEGY OF MILLING CENTER THERMAL ERROR COMPENSATION USING A TRANSFER FUNCTION MODEL AND ITS VALIDATION OUTSIDE OF CALIBRATION RANGE [PDF]

, 2019
Achieving high workpiece accuracy is a long-term goal of machine tool designers. There are many causes of workpiece inaccuracy, with thermal errors being the most dominant. Indirect compensation (using predictive models) is a promising strategy to reduce
Lee C., Horejš O., Kim K.H., Mareš M., Jeong S.M., Fiala Š.   +5 more
core   +1 more source

Electrochemical Evaluation of Compressed Selective Laser Melted AlSi7Mg and AlSi10Mg Alloys in Chloride Environment

Advanced Engineering Materials, EarlyView.
The corrosion performance of AlSi7Mg and AlSi10Mg alloys produced through selective laser melting (SLM) was examined under compressive stress in a chloride environment. Electrochemical analyses, including open‐circuit potential (OCP), potentiodynamic polarization (CPP), and electrochemical impedance spectroscopy (EIS), were complemented by scanning ...
Femi John Akinfolarin, Samson Dare Oguntuyi, Peter Apata Olubambi   +2 more
wiley   +1 more source

Correction of Thermal Gradient Errors in Stem Thermocouple Hygrometers [PDF]

Plant Physiology, 1979
Stem thermocouple hygrometers were subjected to transient and stable thermal gradients while in contact with reference solutions of NaCl. Both dew point and psychrometric voltages were directly related to zero offset voltages, the latter reflecting the size of the thermal gradient.
openaire   +2 more sources

Error Analysis on the Thermal Emissive Band Calibration for the MERSI

, 2023
The remote sensor mounted on the Fengyun-3C (FY-3C) will decay naturally during the operation, causing a decrease in the accuracy of the satellite data. Therefore, an effective monitoring method must be adopted to study the performance changes of the instrument. The theoretical expressions of the absolute and relative errors for the earth field of view
Yue Huang, Peng Gao, Zhenlin Yang
openaire   +1 more source

Efficient Offline Thermal Modelling for Accurate Assessment of Machine Tool Thermal Behaviour

, 2009
Thermal gradients from internal and external heat sources cause instabilities which affect the machine tool positional accuracy. Positioning error results from deformation of the machine structure due to linear thermal expansions of some machine parts ...
Longstaff, Andrew P., Myers, A., Pislaru, Crinela, Longstaff, A. P., Mian, Naeem S., Fletcher, Simon, Mian, N. S., Fletcher, S., Myers, Alan, Pislaru, C.   +9 more
core  

Prediction of Surface Topography Parameters in Direct Laser Interference Patterning of Stainless Steel Using Infrared Monitoring and Convolutional Neural Networks

Advanced Engineering Materials, EarlyView.
This study presents an infrared monitoring approach for direct laser interference patterning (DLIP) combined with a convolutional neural network (CNN). Thermal emission data captured during structuring are used to predict surface topography parameters.
Lukas Olawsky, Marcelo Sallese, Leander Kläber, Clemens Kuhn, Keming Du, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Application of GNNMCI(1, N) to environmental thermal error modelling of CNC machine tools

, 2013
Thermal errors are often quoted as being the largest contributor to inaccuracy of CNC machine tools, but they can be effectively reduced using error compensation.
Longstaff, Andrew P., Fletcher, Simon, Abdulshahed, Ali, Myers, Alan   +3 more
core  

Thermal conductivity measurement of liquids in a microfluidic device

, 2010
A new microfluidic-based approach to measuring liquid thermal conductivity is developed to address the requirement in many practical applications for measurements using small (microlitre) sample size and integration into a compact device.
M. R. Bown, Newton, M.I., Allen, RWK, Allen, R. W.K., Ge, Rile, Ge, R., Kuvshinov, Dmitriy, Newton, MI, Bown, MR, MacInnes, J. M., Hardacre, C., Hardacre, C.; id_orcid, Doy, N., McHale, G., Allen, R. W K, Newton, Michael, Bown, Mark, Aldous, L., Allen, R.W.K., Newton, M. I., Hardacre, C, R. Ge, McHale, G, Hardacre, Christopher, N. Doy, D. Kuvshinov, Allen, Ray, Doy, Nicola, Kuvshinov, D., Bown, M.R., L. Aldous, MacInnes, Jordan, R. W. K. Allen, Allen, R. W. K., MacInnes, JM, McHale, Glen, J. M. MacInnes, Doy, N, G. McHale, Aldous, Leigh, C. Hardacre, Ge, R, MacInnes, J.M., M. I. Newton, Aldous, L, Kuvshinov, D, Bown, M. R.   +46 more
core   +1 more source

Enhancing Strength and Electrical Conductivity in Al–Zr–Sc Conductor Alloys Through Sn and Sr Microalloying and Two‐Step Aging Treatment

Advanced Engineering Materials, EarlyView.
Trace additions of Sn and Sr combined with a two‐step aging treatment are shown to enhance the microstructure and performance of Al–Zr–Sc conductor alloys. Strength and electrical conductivity increase concurrently through accelerated precipitation of fine Al3(Sc, Zr) precipitates and improved dislocation resistance, offering a cost‐effective pathway ...
Quan Shao, Emad M. Elgallad, Alexandre Maltais, X.‐Grant Chen   +3 more
wiley   +1 more source

The significance of air pockets for modelling thermal errors of machine tools

, 2013
It is well known, especially with the prevalence of compensation for geometric errors, that thermal error represents the most significant proportion of the total volumetric error of the machine tool. Thermal error in machine tools originates from changes
Longstaff, Andrew P., Mian, Naeem, Mian, Naeem S., Fletcher, Simon, Longstaff, Andrew, Myers, Alan   +5 more
core