Zhifeng Liu

TL;DR: In this article, a new wear prediction model of BSM is introduced considering complex working conditions, and a loading model is established to describe the dynamic contact force between the ball and the raceway.

TL;DR: A geometric error budget method that simultaneously considers geometric errors, thermal errors and tool wear to improve the machining accuracy reliability of machine tools is proposed.

TL;DR: In this article, a thermal resistance network model of spindle-bearing-bearing pedestal based on the fractal and Hertz contact theory is proposed for thermal resistance problem of the motorized spindle system, and the heat balance equations for thermal nodes are established and solved with Gauss-Seidel iterative method to gain temperature values.

TL;DR: It was found that customized manufacturing tasks could be finished more reliably and efficiently if all participants exchanged the data through cloud platform in real time.

TL;DR: A method based on the product of exponential (POE) screw theory and Morris approach for volumetric machining accuracy global sensitivity analysis of a machine tool is proposed and suggestions, suggestions, and guidelines are provided to adjust and modify the machine tool components to improve the machined accuracy economically.