Editorial for the Special Issue on “Frontiers of Ultra-Precision Machining”

Guo, Jiang; Wang, Chunjin; Kang, Chenwei

doi:10.3390/mi13020220

Cited by 2 publications

(2 citation statements)

References 17 publications

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“…To meet the application requirements of advanced technologies such as large-scale integrated circuits, and lasers, the precision machining technology has been developed rapidly in recent years and it has improved the machining precision of conventional machining method by more than one order of magnitude [1][2][3][4]. Precision machining has high requirements for raw materials, equipment, tools, environment, quality supervision, and other aspects.…”

Section: Introductionmentioning

confidence: 99%

Thermal Property Analysis of Precision Machinery and Its Thermal Error Compensation

Li¹

2022

IJHT

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The machining error caused by the thermal deformation of machines or tools accounts for half or even more in the total error, and the machining precision could be improved by stabilizing the heat balance of the process system. However, few of the existing studies have concerned about the thermal deformation law caused by the high-speed self-feed spindle system that could meet the performance requirements of high-speed cutting in precision machining, therefore, it’s of great necessity to study the thermal properties of precision machinery. For this reason, this paper took the precision machinery with a high-speed self-feed spindle system as the subject to study its thermal properties and thermal error compensation. At first, this paper introduced the composition of the precision machining control system and analyzed the thermal properties of the subject. Then, the heat source and heat exchange forms of the precision machinery were analyzed, the thermal intensity of the internal and external heat sources during the machining process was calculated, and the corresponding thermal boundary conditions were given. After that, this paper divided the heat sources of the subject during high-speed cutting into two types: internal heat source and external environment heat source, and carried out analysis. Moreover, this paper gave the structure of a thermal error and temperature synchronous measurement system for precision machinery, integrated the features of the thermal error data of two groups of high-speed cutting process, and built a thermal error compensation model based on the Bayesian network. At last, experimental results verified the effectiveness of the model.

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Section: Introductionmentioning

confidence: 99%

Thermal Property Analysis of Precision Machinery and Its Thermal Error Compensation

Li¹

2022

IJHT

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“…CNC machine is one of the most important components in modern manufacturing area. The vigorous development of science and technology and electronic information technology requires it to have higher performance [1,2].…”

Section: Introductionmentioning

confidence: 99%

Modeling of CNC machine tools’ spatial geometric error based on two-dimensional angle error

et al. 2022

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A modeling method of CNC machine tools’ spatial geometric error is proposed based on two-dimensional angle error in this paper. Different from traditional modeling method, this method takes into account the effect of additional angle errors because the machine tool’s angle errors in the system of the lower guide rail will be passed on to slip board structure to the upper guide rail system. Firstly, after analyzing the principle of two-dimensional angle error, an optimized error compensation model of CNC machine tools’ spatial geometric error contains two-dimensional angle error is established through the traditional homogeneous coordinate transformation matrix method (HTM). Further, by applying the experiment, the compensation effect of the model is verified through comparing the body diagonal errors of CNC machine tools before and after compensation. Experiment results show that the body-diagonal accuracy after compensation based on the optimized model is 87.73% higher than that before compensation, and 54.82% higher than that of the traditional model after compensation. Article Highlights The highlight of the study reported here is threefold: Firstly, the principle of two-dimensional angle error is analyzed. Secondly, an optimized spatial geometric error compensation model of CNC machine tool is established based on the principle of two-dimensional angle error. Thirdly, the compensation effect of the optimized compensation model is verified by comparing the bodies diagonal precision of the machine tool.

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Editorial for the Special Issue on “Frontiers of Ultra-Precision Machining”

Abstract: Ultra-precision machining is a multi-disciplinary research area that is an important branch of manufacturing technology [...]

Cited by 2 publications

References 17 publications

Thermal Property Analysis of Precision Machinery and Its Thermal Error Compensation

Thermal Property Analysis of Precision Machinery and Its Thermal Error Compensation

Modeling of CNC machine tools’ spatial geometric error based on two-dimensional angle error

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