Trajectory planning of robot-assisted abrasive cloth wheel polishing blade based on flexible contact

Zhang, Jingjing; Liu, Jia; Yang, Shengqiang

doi:10.1007/s00170-022-08737-9

Cited by 17 publications

(4 citation statements)

References 21 publications

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“…Through the experimental study of belt polishing, they achieved the optimum parameter combination, which may reduce the surface roughness and improve the material removal rate. Zhang et al (2022) analysed the finite element model and pressure distribution of blade contact, extracted polishing curves using NURBS curves, and considered trajectory planning based on the flexible contact deformation of the blade surface. It can reduce surface roughness and improve polishing efficiency.…”

Section: Introductionmentioning

confidence: 99%

Titanium alloys surface integrity of belt grinding considering different machining trajectory direction

et al. 2022

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The interplay of abrasive grains and materials complicates the grinding of titanium alloys by abrasive belts. Notably, the influence relationship of surface generation for complex curved workpieces such as hollow blades needs to be clarified, making precise control of the surface integrity of complex surfaces difficult in abrasive belt grinding applications. This paper thus proposes a trajectory planning method based on the direction of interaction between grinding grains and materials to reveal its influence law on the surface integrity of complex curved surfaces of titanium alloy with unevenly distributed machining allowances. First, a machining trajectory with different angles between the grinding direction and feed direction is proposed. In order to determine the corresponding experimental scheme for titanium alloy hollow blades. Experimental results are used to analyze the influence of different grinding trajectory directions on the surface roughness, residual stress, surface topography, and accuracy of the contours. The results show that different grinding trajectory directions significantly affect the workpiece’s surface integrity. By varying the grinding trajectory direction, it is possible to reduce the surface roughness of titanium alloy workpieces by approximately 40%, increase the surface residual compressive stress by approximately 50%, provide a finer workpiece surface and improve the consistency of the surface texture. This work is expected to guide the efficient and high-quality machining of complex curved parts such as titanium alloy hollow blades.

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Section: Introductionmentioning

confidence: 99%

Titanium alloys surface integrity of belt grinding considering different machining trajectory direction

et al. 2022

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“…Generally, for an integral impeller with a large end diameter of φ500 mm, a total height of 221 mm, and a number of 13 blades, using the manual polishing could takes more than 40 hours to reduce the surface roughness of the impeller surface roughness from Ra 1.6 μm to Ra 0.8 μm. In addition, manual polishing has the disadvantage of labor-intensive, low efficiency and messy polished surface scratches [2].…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, with the rapid development of digitalization and intelligent manufacturing, various CNC forms and special processing methods have been widely used in the field of blade polishing, such as CNC precision milling [3], robotic polishing [2,6], abrasive flow polishing [1], and abrasive belt polishing [5], 5-axis CNC machining is one of the most common processing methods for integral impellers [7,8], due to its advantages of high machining adaptability and controllability of machining dimensional accuracy. Although this method can successfully process an integral impeller with the surface roughness of Ra 0.8 μm, the machining trajectory planning is complicated and the tool marks on the machining surface are obvious [9].…”

Section: Introductionmentioning

confidence: 99%

“…Although this method can successfully process an integral impeller with the surface roughness of Ra 0.8 μm, the machining trajectory planning is complicated and the tool marks on the machining surface are obvious [9]. In addition, due to the thin blade wall and weak rigidity, workpiece deformation and tool vibration are easy to occur during machining, resulting in inhomogeneous removal of material from processed surface [2].…”

Section: Introductionmentioning

confidence: 99%

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A novel high-quality and high-efficiency immersion fluid chemical mechanical polishing process for integral impellers

Liao

Luo

Chang

et al. 2022

Int J Adv Manuf Technol

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A novel process of immersion fluid chemical mechanical polishing (CMP) is proposed to replace the traditional manual polishing and the mechanical polishing for integral impeller.Using the FLUENT software to simulate the force state on the integral impeller surface and the fluid motion trajectory during the polishing process, in order to determine the optimal polishing process , and to reveal the formation mechanism of the high-quality integral impeller surface. The immersion fluid CMP process experiment was carried out on the integral impeller with the developed CMP slurry containing phosphoric acid (H3PO4), hydrogen peroxide (H2O2), citric acid (CA), silicon carbide (SiC) and deionized water. After 2.5 hours of CMP, the surface roughness decreased from Ra 1.651 μm to Ra 0.658 μm, the polished surface is smooth and without tool marks. X-ray photoelectron spectroscopy (XPS) and infrared (IR) were used to reveal the polishing mechanism of the oxidation, dissolution, removal and complex precipitates on the surface of the integral impeller. This research provides a novel process for the precision machining of other complex structural parts similar to the integral impeller, which has the characteristics of simple polishing process, high efficiency and good polishing effect.

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Effect of relative feeding direction on surface texture in abrasive cloth flap wheel polishing process

Zhang

Lin

Shi

et al. 2022

Int J Adv Manuf Technol

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Trajectory planning of robot-assisted abrasive cloth wheel polishing blade based on flexible contact

Cited by 17 publications

References 21 publications

Titanium alloys surface integrity of belt grinding considering different machining trajectory direction

Titanium alloys surface integrity of belt grinding considering different machining trajectory direction

A novel high-quality and high-efficiency immersion fluid chemical mechanical polishing process for integral impellers

Effect of relative feeding direction on surface texture in abrasive cloth flap wheel polishing process

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