An optimized algorithm and the verification methods for improving the volumetric error modeling accuracy of precision machine tools

2021 ◽  
Author(s):  
Hui Liu ◽  
Si-ying Ling ◽  
Li-ding Wang ◽  
Zhen-jiang Yu ◽  
Xiao-dong Wang
Keyword(s):  
Machine Tools ◽  
Error Modeling ◽  
Volumetric Error ◽  
Precision Machine ◽  
Verification Methods ◽  
Modeling Accuracy ◽  
Precision Machine Tools

Volumetric error modeling and compensation considering thermal effect on five-axis machine tools

2012 ◽  
Vol 227 (5) ◽  
pp. 1102-1115 ◽  
Author(s):  
Yi Zhang ◽  
Jianguo Yang ◽  
Sitong Xiang ◽  
Huixiao Xiao
Keyword(s):  
Error Compensation ◽  
Machine Tools ◽  
Data Communication ◽  
Zero Point ◽  
Compensation System ◽  
Error Modeling ◽  
Volumetric Error ◽  
Position Errors ◽  
Homogeneous Transformation Matrix ◽  
Five Axis

This article intends to provide an error compensation system for five-axis machine tools. A volumetric error model is established with homogeneous transformation matrix method, from which compensation values of both orientation and position errors can be obtained. Thirty-seven errors on a five-axis machine tool are classified into three categories – functional, random, and negligible errors, among which the effect of the first one on volumetric accuracy is considered as great enough to be included in this model. Some typical modeling methods are discussed on positioning and straightness errors, considering both geometric and thermal effects. Then, we propose a compensation implementation technique based on the function of external machine zero point shift and Ethernet data communication protocol for machine tools. Finally, laser diagonal measurements have been conducted to validate the effectiveness of the proposed volumetric error compensation system.

scholarly journals Ultra-precision: enabling our future

2012 ◽  
Vol 370 (1973) ◽  
pp. 3993-4014 ◽  
Author(s):  
Paul Shore ◽  
Paul Morantz
Keyword(s):  
Mass Production ◽  
Machine Tools ◽  
Well Being ◽  
First Century ◽  
Precision Engineering ◽  
Precision Machine ◽  
Ultra Precision ◽  
Manufacturing Accuracy ◽  
Precision Machine Tools ◽  
Wealth Generation

This paper provides a perspective on the development of ultra-precision technologies: What drove their evolution and what do they now promise for the future as we face the consequences of consumption of the Earth’s finite resources? Improved application of measurement is introduced as a major enabler of mass production, and its resultant impact on wealth generation is considered. This paper identifies the ambitions of the defence, automotive and microelectronics sectors as important drivers of improved manufacturing accuracy capability and ever smaller feature creation. It then describes how science fields such as astronomy have presented significant precision engineering challenges, illustrating how these fields of science have achieved unprecedented levels of accuracy, sensitivity and sheer scale. Notwithstanding their importance to science understanding, many science-driven ultra-precision technologies became key enablers for wealth generation and other well-being issues. Specific ultra-precision machine tools important to major astronomy programmes are discussed, as well as the way in which subsequently evolved machine tools made at the beginning of the twenty-first century, now provide much wider benefits.

scholarly journals Influence of external heat sources on volumetric thermal errors of precision machine tools

2018 ◽  
Vol 99 (1-4) ◽  
pp. 475-495 ◽  
Author(s):  
Lingtao Weng ◽  
Weiguo Gao ◽  
Zhanshan Lv ◽  
Dawei Zhang ◽  
Teng Liu ◽  
...  
Keyword(s):  
Machine Tools ◽  
External Heat ◽  
Heat Sources ◽  
Thermal Errors ◽  
Precision Machine ◽  
Precision Machine Tools

Effect of fly ash on the overall performance of particulate-filled polymer composite for precision machine tools

2017 ◽  
Vol 39 (11) ◽  
pp. 3986-3993 ◽  
Author(s):  
Jicai Yin ◽  
Bingchuan Bian ◽  
Yuanyuan Ge ◽  
Qian Ma
Keyword(s):  
Fly Ash ◽  
Polymer Composite ◽  
Machine Tools ◽  
Filled Polymer ◽  
Precision Machine ◽  
Overall Performance ◽  
Precision Machine Tools
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