Error budget and stiffness chain assessment in a micromilling machine equipped with tools less than 0.3mm in diameter

Uriarte, L.; Herrero, A.; Zatarain, Mikel; Santiso, G.; Lacalle, Luis Norberto López de; Lamíkiz, Aitzol; Albizuri, Joseba

doi:10.1016/j.precisioneng.2005.11.010

Cited by 86 publications

(39 citation statements)

References 27 publications

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“…During machining process, once force F acts on the tool tip, small deflection will take place at the tool tip due to the elastic deflection of the machine joints [5], the flexible machine axes and tool-spindle. With the assumption of small deflections, the deflection at the tool tip can be expressed as:…”

Section: General Stiffness Model Of Multi-axis Machine Toolsmentioning

confidence: 99%

A Method of General Stiffness Modeling for Multi-axis Machine Tool

Yan¹,

Peng²,

Li³

2008

Intelligent Robotics and Applications

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Abstract. In this paper, a new method for computing general stiffness model at tool tip for multi-axis machine tool is presented. The formula of general stiffness model at tool tip is derived from virtual-work principle and point transformation matrix method. Point transformation matrix method indicates the transformation relationship of elastic displacement on both ends of flexible axes as well as the transformation relationship of force. By multiplying the point transformation matrix, the final stiffness matrix at tool tip will be obtained efficiently. In this modeling method, the final stiffness matrix is composed of local compliance matrixes according to their contribution to the final stiffness matrix.

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Section: General Stiffness Model Of Multi-axis Machine Toolsmentioning

confidence: 99%

A Method of General Stiffness Modeling for Multi-axis Machine Tool

Yan¹,

Peng²,

Li³

2008

Intelligent Robotics and Applications

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show abstract

“…Brecher et al [7] used the error allocation in the compact design of machine tools for providing the possibility to avoid, separate and compensate the machine errors. Uriarte et al [8] made the overall error allocation for a micro-milling machine, mainly considering the collet angular deformation and tool deflection. Erkorkmaz et al [9] carried out the error budget for the X-Y stage of precision machine tool, where the geometrical error, dynamic error, servo error and thermal error were mainly regarded.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Accuracy Design Method of Ultra-precision Machine Tool

Guoda

Sun

Zhang

et al. 2018

Chin. J. Mech. Eng.

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Ultra-precision machine tool is the most important physical tool to machining the workpiece with the frequency domain error requirement, in the design process of which the dynamic accuracy design (DAD) is indispensable and the related research is rarely available. In light of above reasons, a DAD method of ultra-precision machine tool is proposed in this paper, which is based on the frequency domain error allocation. The basic procedure and enabling knowledge of the DAD method is introduced. The application case of DAD method in the ultra-precision flycutting machine tool for KDP crystal machining is described to show the procedure detailedly. In this case, the KDP workpiece surface has the requirements in four different spatial frequency bands, and the emphasis for this study is put on the middle-frequency band with the PSD specifications. The results of the application case basically show the feasibility of the proposed DAD method. The DAD method of ultra-precision machine tool can effectively minimize the technical risk and improve the machining reliability of the designed machine tool. This paper will play an important role in the design and manufacture of new ultra-precision machine tool.

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“…After this, many machine tool testing methods were adopted in many international standards such as American National Standards Institute (ANSI) and ISO, and ANSI especially drew up the standard for the test of the spindle [7]. Especially, radical deformation of the spindle is recognized as a significant source of error that affects the accuracy of the machine tools [8]. With the development of spindle researches, the thermal and mechanical behaviors of high-speed motorized spindles have become very difficult to predict for spindle designer and users [9].…”

Section: Introductionmentioning

confidence: 99%