Error analysis and in-process compensation on cup wheel grinding of hard sphere

Li, Dongdong; Xu, Mingming; Wei, Chenjun; Hu, De Jin; Xu, Liming

doi:10.1016/j.ijmachtools.2011.03.004

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…As a common strategy, the ground surface was measured, and then, the measured result was used as a reference to modify the NC tool path for subsequent compensation grinding cycle [18,[21][22][23][24]. The common drawback is that the wheel wear in the compensation grinding which would introduce new form error has not been considered.…”

Section: In-process Compensation Of Surface Form Errormentioning

confidence: 99%

High-performance grinding of a 2-m scale silicon carbide mirror blank for the space-based telescope

Zhang

Yang

Zheng

et al. 2016

Int J Adv Manuf Technol

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Silicon carbide (SiC) is a competitive candidate material for building the space-based reflecting mirrors. However, SiC is also a typical difficult-to-machine material due to its extreme hardness. When SiC workpiece is machined by grinding, the wheel wears rapidly which leads to a deterioration of surface form accuracy. Grinding efficiency also becomes extremely low due to the frequent truing and dressing of grinding wheels. To achieve high-performance grinding process capable of producing accurate surface at high grinding efficiency, an ultrasonic vibration-assisted fix-point grinding technology was developed in this study. Wheel wear observation indicated that the wheel needs not to be dressed during the whole grinding cycle. Moreover, a laser tracker was used to achieve an on-machine measurement of the surface form error. A CNC tool microset was adopted to evaluate the wheel wear amount. On the basis of the above two results, surface form error could be predicted before grinding, and thus, an inprocess compensation of surface form error was carried out. Using the above-mentioned grinding strategies, a SiC mirror blank with an aperture diameter of 2 m was successfully ground to a form accuracy of 18 μm in peak-to-valley (PV). Therefore, this work provides an efficient and economical solution for grinding the large-scale SiC aspherical surfaces.

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Section: In-process Compensation Of Surface Form Errormentioning

confidence: 99%

High-performance grinding of a 2-m scale silicon carbide mirror blank for the space-based telescope

Zhang

Yang

Zheng

et al. 2016

Int J Adv Manuf Technol

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show abstract

“…The existing methods of machining error analysis include mainly two types: (1) there is an explicit function relationship between pose error and machining error; therefore, mathematical derivations process can be executed to get the relationship [2,3,6,12,13]. (2) The others are based on multi-body system theory.…”

Section: Introductionmentioning

confidence: 99%

Error analysis and compensation of line contact spherical grinding with cup-shaped wheel

Peng

Dai

Song

et al. 2015

Int J Adv Manuf Technol

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According to forming principle of line contact spherical generating by cup-shaped wheel, the sources of grinding error were analyzed, and a new method for error analysis and compensation was proposed in this paper. In a certain grinding condition, the grinding error caused by the pose errors between wheel and workpiece was simulated, the corresponding curve fitting of grinding error was carried out, and an appropriate parametric model was established. If the actual grinding error is known, the model can identify the corresponding pose error as well as compensate the grinding error. The simulation and experiment processes of compensation validate the efficient and workability of parametric model, and improve the grinding precision.

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An equivalent-sphere-based grinding of large aspheric and spherical surfaces

Dong

et al. 2022

Int J Adv Manuf Technol

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Error analysis and in-process compensation on cup wheel grinding of hard sphere

Cited by 4 publications

References 13 publications

High-performance grinding of a 2-m scale silicon carbide mirror blank for the space-based telescope

High-performance grinding of a 2-m scale silicon carbide mirror blank for the space-based telescope

Error analysis and compensation of line contact spherical grinding with cup-shaped wheel

An equivalent-sphere-based grinding of large aspheric and spherical surfaces

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