The Grinding Force Measure and Analysis on the Abrasive Belt Grinding to Magnesium Alloy

Huang, Yun; Zhi, Huang; Xu, Qihao; Zhou, Wenbo

doi:10.4028/www.scientific.net/kem.353-358.726

Cited by 5 publications

(3 citation statements)

References 4 publications

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“…A large number of theoretical studies and experiments show that the grinding force has a direct relationship with the contact situation between the belt and blades, so it can reflect blade T Ã work to a large extent. 13,14 In addition, the grinding force has an important impact on the efficiency and quality of the grinding system which makes it a very important variable. 15 Therefore in this article, the grinding force is chosen as the parameter to characterize the system error.…”

Section: The Working Accuracy Of the Systemmentioning

confidence: 99%

Modeling of the working accuracy for robotic belt grinding system for turbine blades

Zhang

et al. 2017

Advances in Mechanical Engineering

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This article presents a calibration model for the whole grinding system to enhance its accuracy, because of the problem of low accuracy of the robotic belt grinding system which is due to the low absolute positioning accuracy of the robot as well as the deformations of the turbine blades and grinding tool under the grinding force. First, the transition matrix of system working accuracy was established and the corresponding evaluation criterion was put forward for the systemic features. Then the deformation of the turbine blades and grinding tool were analyzed and modeled, respectively, and the model of the absolute positioning accuracy of the robot was established based on the geometrical error as well as the compliance error. Finally, based on the models above, a method of error compensation was presented and the flowchart was given. The experiments show that the absolute positioning accuracy of the robot (the average value reduces from 1.186 to 0.154 mm) and the accuracy of the whole grinding system (the average grinding force is 20.4 N which is very close to the predetermined 20 N) have been effectively improved, which prove that the method can help to expand the application scope of the robotic system.

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Section: The Working Accuracy Of the Systemmentioning

confidence: 99%

Modeling of the working accuracy for robotic belt grinding system for turbine blades

Zhang

et al. 2017

Advances in Mechanical Engineering

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“…, it is subjected to a normal loading that is symmetric with respect to the axis of the wedge, and the tangential stress can be set to be zero on the faces of the wedge [6,7] . Thus the boundary conditions are listed as follows: π τ π τ also so.…”

Section: Analytical Solution Of Thermal Stress Around the Cornermentioning

confidence: 99%

Thermal Stress Distribution in the Corner of IC Package Structure

Shi

et al. 2007

KEM

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Passivation cracking is one of the main failures of Integrated circuits (ICs). A major cause for these failures is due to the mismatch of Coefficients of Thermal Expansion (CTE), Young’s modulus, Poisson’s ratios of package materials. In this paper, in order to analysis the stress distribution around the passivation layer corner, the finite element simulations and simplified analytical solutions are both applied. Then the comparison of stress values is made between the FEM result and simplified analytical solution, which shows that there is a good agreement. Based on these analyses, a conclusion can be drawn out that the simplified analytical model can be used to analyze the maximum stress around the passivation layer corner fast when design a chip preliminarily.

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“…The softened adhesive covers the fiber and adheres to the abrasive grits, filling the sanding gaps and resulting in a so-called "blocking" effect [23,24]. This effect will reduce the removal ability of the abrasive belt and increase the sanding force and temperature [25,26]. In the early stage of sanding, there is sufficient space for containing chips.…”

Section: Introductionmentioning

confidence: 99%

Research on Failure Mechanism of Abrasive Belt and Effect on Sanding of Medium-Density Fiberboard (MDF)

Sun

Luo

et al. 2022

Coatings

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Sanding is a very important process in MDF production. In this study, abrasive belts (P60 and P120) and MDF were used to conduct sanding experiments, and mass variation, surface morphology, and surface roughness of the abrasive belts were measured to analyze the failure process of the utilized abrasive belts. It is found that the mass of the abrasive belt mainly increased in the sanding process. The increase range of P60 is mainly within the scope of 0~0.02 g, while for P120, the mass change mostly fluctuates within 0~0.01 g. The surface roughness (Sa and Sku) of abrasive belts presents a down-and-up trend as sanding times increase, and Sa and Sku of P60 are both larger than those of P120. Wood fibers with adhesive blocked the space among grits and led to a “grits gathering” phenomenon. When the area of “grits gathering” is larger, it forms an abrasive belt “blocking”. Grit wear (dropping-off, fracture) and “blocking” constitute the two predominant patterns of the failure mechanism. This study is helpful to further improve wood-material-sanding theories, provide insights to investigate wear forms of other abrasive belts, and determine and extend the life of abrasive belts.

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The Grinding Force Measure and Analysis on the Abrasive Belt Grinding to Magnesium Alloy

Cited by 5 publications

References 4 publications

Modeling of the working accuracy for robotic belt grinding system for turbine blades

Modeling of the working accuracy for robotic belt grinding system for turbine blades

Thermal Stress Distribution in the Corner of IC Package Structure

Research on Failure Mechanism of Abrasive Belt and Effect on Sanding of Medium-Density Fiberboard (MDF)

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