PVDF sensor-based monitoring of milling torque

Ma, Lei; Melkote, Shreyes N.; Castle, James

doi:10.1007/s00170-013-5410-2

Cited by 35 publications

(23 citation statements)

References 13 publications

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“… MPB effect due to the polarization rotation may lead to enhanced piezoelectric shear strain . Further experiments are therefore highly desired not mentioning that large shear strain is of importance to devices of applications . Moreover, resolving the origins of enhanced piezoelectric properties in ferroelectrics should be cautious as many foregoing complex factors may simultaneously contribute to strain response to external field …”

Section: Origin and Tuning Of Negative Longitudinal Piezoelectric Coementioning

confidence: 99%

“…[175] Further experiments [176] are therefore highly desired not mentioning that large shear strain is of importance to devices of applications. [177] Moreover, resolving the origins of enhanced piezoelectric properties in ferroelectrics should be cautious as many foregoing complex factors may simultaneously contribute to strain response to external field. [178] Obviously, it highly demands further developments especially from the aspect of ab initio calculations.…”

Section: Mechanisms Of the Mpb Behavior In P(vdf-trfe)smentioning

confidence: 99%

See 1 more Smart Citation

Ferroelectric Polymers Exhibiting Negative Longitudinal Piezoelectric Coefficient: Progress and Prospects

Liu

Wang

2020

Advanced Science

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Piezoelectric polymers are well‐recognized to hold great promise for a wide range of flexible, wearable, and biocompatible applications. Among the known piezoelectric polymers, ferroelectric polymers represented by poly(vinylidene fluoride) and its copolymer poly(vinylidene fluoride‐co‐trifluoroethylene) possess the best piezoelectric coefficients. However, the physical origin of negative longitudinal piezoelectric coefficients occurring in the polymers remains elusive. To address this long‐standing challenge, several theoretical models proposed over the past decades, which are controversial in nature, have been revisited and reviewed. It is concluded that negative longitudinal piezoelectric coefficients arise from the negative longitudinal electrostriction in the crystalline domain of the polymers, independent of amorphous and crystalline‐amorphous interfacial regions. The crystalline origin of piezoelectricity offers unprecedented opportunities to improve electromechanical properties of polymers via structural engineering, i.e., design of morphotropic phase boundaries in ferroelectric polymers.

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Section: Origin and Tuning Of Negative Longitudinal Piezoelectric Coementioning

confidence: 99%

Section: Mechanisms Of the Mpb Behavior In P(vdf-trfe)smentioning

confidence: 99%

Ferroelectric Polymers Exhibiting Negative Longitudinal Piezoelectric Coefficient: Progress and Prospects

Liu

Wang

2020

Advanced Science

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“…Liang et al [ 20 ] developed a six-component sensor system with a compact monolithic elastic element to detect the tangential cutting forces as well as the cutting moments simultaneously in the machining processes. Ma et al [ 21 ] used PVDF sensors to pick up the dynamic shear strain produced in the rotating tool during the cutting process. Luo et al [ 22 ] integrated the PVDF thin-film sensors into the index-able tools to measure cutting forces acting on separate insert, the signals are transmitted by a wireless transmitter, and the signals are then used to identify the insert working condition in the milling process.…”

Section: Introductionmentioning

confidence: 99%

Cutting Forces Measurement for Milling Process by Using Working Tables with Integrated PVDF Thin-Film Sensors

Luo

Chong

Liu

2018

Sensors

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In the milling process, cutting forces contain key information about the machining process status in terms of workpiece quality and tool condition. On-line cutting force measurement is key for machining condition monitoring and machined surface quality assurance. This paper presents a novel instrumented working table with integrated polyvinylidene fluoride (PVDF) thin-film sensors, thus enabling the dynamic milling force measurement with compact structures. To achieve this, PVDF thin-film sensors are integrated into the working table to sense forces in different directions and the dedicated cutting force decoupling model is derived. A prototype instrumented working table is developed and validated. The validation demonstrates that profiles of the forces measured from the developed instrumented working table prototype and the dynamometer match well. Furthermore, the milling experiment results convey that the instrumented working table prototype could also identify the tool runout due to tool manufacturing or assembly errors, and the force signal spectrum analysis indicates that the developed working table can capture the tool passing frequency correctly, therefore, is suitable for the milling force measurement.

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“…Due to the limitations of current wired sensor systems, and in order to reduce the invasion degree of sensor system into the milling or drilling process and increase flexibility, a series of wireless sensor-integrated systems for rotating cutter have been developed [8]- [23], in which the sensors and other electronic components, such as sensor signal processing module, wireless data transfer module, and power supply module, are all integrated into the tool holder. For the key wireless data transfer module, the common technologies, namely Bluetooth [8]- [11], ZigBee [12]- [14], WiFi [15]- [20], Radio frequency identification (RFID) [21] and sub-1 GHz radio frequency [22], [23], have been adopted to transmit the measured condition data wirelessly to a upper host computer. It can be noted that WiFi is the most widely used transmission method for tool condition monitoring, which has the potential to be competitor of other wireless transmission technologies taking into account of its relatively high transmission speed and long transmission distance.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Wireless Power and Data Transmission Over One Pair of Coils for Sensor-Integrated Rotating Cutter

Zhu

Tao

2020

IEEE Access

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Tool condition monitoring is becoming particularly important in the cutting process. More and more researchers start to integrate the sensors into the tool holder due to its convenient use and wide applicability. However, it is difficult to transmit out the condition data and supply stable power to the sensor-integrated systems through the traditional wired way as the tool holder is under high-speed rotation in milling or drilling process. In this paper, a novel simultaneous wireless power and data transfer system over one pair of coils for sensor-integrated rotating cutter is presented, and the eddy effect caused by the metal handle that impacts the system performance is solved with ferrite shielding. To transmit out the cutting condition data wirelessly, the synchronous detection and envelope detection technology are employed. Meanwhile, the synchronous rectification technology is adopted to improve the performance of the wireless power transfer. Eventually, the experimental platform has been set up and the cutting tests have also been carried out. The results show that the designed new wireless power and data transfer system over one pair of coils is stable and practical to track and transmit out the condition data of the rotating cutter. INDEX TERMS Tool condition monitoring, rotating cutter, simultaneous wireless power and data transfer, one pair of coils, ferrite shielding.

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PVDF sensor-based monitoring of milling torque

Cited by 35 publications

References 13 publications

Ferroelectric Polymers Exhibiting Negative Longitudinal Piezoelectric Coefficient: Progress and Prospects

Ferroelectric Polymers Exhibiting Negative Longitudinal Piezoelectric Coefficient: Progress and Prospects

Cutting Forces Measurement for Milling Process by Using Working Tables with Integrated PVDF Thin-Film Sensors

Simultaneous Wireless Power and Data Transmission Over One Pair of Coils for Sensor-Integrated Rotating Cutter

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