Development of a Non-Resonant 3D Elliptical Vibration Cutting Apparatus for Diamond Turning

Lin, Jieqiong; Lu, Mingming; Zhou, Xiaoqin

doi:10.1007/s40799-016-0021-0

Cited by 29 publications

(10 citation statements)

References 15 publications

(11 reference statements)

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“…require the improvement of traditional cutting processes using a hybrid manufacture that consists of combining precision machining with tools vibration (or workpieces) with high frequency and low amplitude [ 12 , 13 ]. Vibration control during machining processes can generate lower average machining forces and thinner chips, leading to high machining efficiency [ 14 ], better tool durability [ 15 ], better quality of the surface and a precise shape, and a reduction of the generation of burrs in the cutting process [ 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

Improving the Performance of Steel Machining Processes through Cutting by Vibration Control

et al. 2021

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Machining processes through cutting are accompanied by dynamic phenomena that influence the quality of the processed surfaces. Thus, this research aimed to design, make, and use a tool with optimal functional geometry, which allowed a reduction of the dynamic phenomena that occur in the cutting process. In order to carry out the research, the process of cutting by front turning with transversal advance was taken into account. Additionally, semi-finished products with a diameter of Ø = 150 mm made of C45 steel were chosen for processing (1.0503). The manufacturing processes were performed with the help of two tools: a cutting tool, the classic construction version, and another that was the improved construction version. In the first stage of the research, an analysis was made of the vibrations that appear in the cutting process when using the two types of tools. Vibration analysis considered the following: use of the Fast Fourier Transform (FFT) method, application of the Short-Time Fourier-Transformation (STFT) method, and observation of the acceleration of vibrations recorded during processing. After the vibration analysis, the roughness of the surfaces was measured and the parameter Ra was taken into account, but a series of diagrams were also drawn regarding the curved profiles, filtered profiles, and Abbott–Firestone curve. The research showed that use of the tool that is the improved constructive variant allows accentuated reduction of vibrations correlated with an improvement of the quality of the processed surfaces.

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Section: Introductionmentioning

confidence: 99%

Improving the Performance of Steel Machining Processes through Cutting by Vibration Control

et al. 2021

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“…As a high-performance functional device, the piezoelectric actuator has the advantages of small size, high displacement resolution, fast response speed, compact structure, large driving force, and low cost. Therefore, it has a broad application prospect in the fields of micro-assembly (Heriban et al, 2008), intelligent structure (Gao et al, 2020;Tanaka, 2014), precision machining (Lin et al, 2016), nanotechnology (Gu et al, 2016;Li et al, 2019), bioengineering (Zainal et al, 2015). For example, it is used in the assembly of micro-parts (Schro¨ter and Schmidt, 2018), the probe positioning of scanning probe microscope (Lu et al, 2018), the clamping of cells in bioengineering (Garce´s-Schro¨der et al, 2015;Kim et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Precision open-loop control of piezoelectric actuator

Nie

Cui

Huang

et al. 2021

Journal of Intelligent Material Systems and Structures

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Due to space constraints, some micro-assemblies and micro-operating systems cannot install sensors, so it is challenging to achieve closed-loop control. For this reason, a precision open-loop control strategy for piezoelectric actuators is proposed. Firstly, based on the PI model and the proposed threshold partition method, the hysteresis model of the piezoelectric actuator with rate-dependent and few operators is established. Then the hysteresis error of the piezoelectric actuator is compensated by the inverse model obtained. Secondly, the creep model of the logarithmic piezoelectric actuator with simple expression and few parameters is established. Then, a creep controller without demand inverse is designed to compensate for the creep error of the piezoelectric actuator. Finally, a ZVD (Zero Vibration Derivative) input shaping method with good robustness is given to eliminate the oscillation generated by the piezoelectric actuator under the action of the step signal. The experimental results show that the displacement error of piezoelectric actuator is reduced from −9.07 to 9.46 μm to −1.22 to 1.78 μm when the maximum displacement is 120 μm after hysteresis compensation; after creeping compensation, within the action time of the 1200 s, the displacement creep of the piezoelectric actuator was reduced from 5.5 μm before compensation to 0.3 μm; after the oscillation control, the displacement overshoot of the piezoelectric actuator is reduced to 0.6% of that before control.

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“…Compared to conventional cutting, the cutting force and surface roughness can be reduced with the device. Lu and colleagues 11,12 designed an EVC device with parallel compliant mechanism. The structure is convenient to process, and the driving force is controlled under a lower value.…”

Section: Introductionmentioning

confidence: 99%

A novel three-dimensional elliptical vibration cutting device based on the freedom and constraint topologies theory

Lin

Kong

Wang

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part B:

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Aiming at the issue of the lack of the design theory for the three-dimensional elliptical vibration cutting device, a compliant mechanism with two rotations and one translation is synthesized based on the theory of freedom and constraint topologies. And a three-dimensional elliptical vibration cutting device is proposed on the basis of the compliant mechanism. The relationship between the critical speed and the length of the tool bar is analyzed. Simulation is conducted to analyze the influence of parameters on the output ellipse. Experiments are conducted to verify the validity of the elliptical vibration cutting device. The relationship between the roughness and the cutting speed is obtained. Experiments with different driving frequencies are conducted without the change of other parameters. Results show that the proposed compliant mechanism is feasible for the elliptical vibration cutting device. Compared with the common cutting, the new elliptical vibration cutting device has a better performance in the processing effect. This provides an important reference for design of the elliptical vibration cutting device.

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Development of a Non-Resonant 3D Elliptical Vibration Cutting Apparatus for Diamond Turning

Cited by 29 publications

References 15 publications

Improving the Performance of Steel Machining Processes through Cutting by Vibration Control

Improving the Performance of Steel Machining Processes through Cutting by Vibration Control

Precision open-loop control of piezoelectric actuator

A novel three-dimensional elliptical vibration cutting device based on the freedom and constraint topologies theory

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