A Study on the Interference of Position Detection Systems During Laser Cutting

被引：0

作者：

Lü C. ^{[1
]}

Wu Z. ^{[2
]}

Yang S. ^{[1
]}

Jia S. ^{[3
]}

机构：

[1] State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an

[2] School of Mechatronics Engineering, Henan University of Science and Technology, Luoyang, 471023, Henan

[3] Googol Technology (Shenzhen) Ltd., Shenzhen, 518057, Guangdong

来源：

Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University | 2019年 / 53卷 / 02期

关键词：

Capacitive sensor; Laser cutting; Position detection; Slag splash;

D O I：

10.7652/xjtuxb201902020

中图分类号：

学科分类号：

摘要：

A method for calculating the influence of slag splash on capacitance sensor is proposed by using a finite element method to solve the problem that the capacitance sensor detection signal of the position detection system is susceptible to the influence of cutting slag in the laser cutting process. Firstly, a model for the sensor is built through COMSOL software, and the finite element method is used to simulate the capacitance change of the capacitive sensor and the influence of various factors on the effect of the capacitance during the slag splash process. Secondly, metal balls are used to simulate molten slags and to verify the simulation results. Finally, an interpolation method is used to process the simulation results and the measured capacitance, and an isoline map of capacitance is drawn to obtain the change rule of capacitance in the process of slag sputtering:Capacitance change is characterized by gradual increasing and two mutations in the process of slag moving towards the cutting head, while the size of the change is directly proportional to the volume of the slag and has an inverse relationship with the spacing of the plates. Moreover, the slag has great impact on sensors when it is in the plane affected area and the lower area. Experimental results show that the error between the measured value and the simulation result is less than 0.001 pF, the simulation results accurately reflect the interference of slag splash to capacitance sensor, and provide a theoretical basis for interference filtering and cutting head design. © 2019, Editorial Office of Journal of Xi'an Jiaotong University. All right reserved.

引用

页码：150 / 156

页数：6

共 17 条

[1]

Senthilkumar V., Jayaprakash G., Parametric investigation and modelling of hardness and surface quality in CO2 laser cutting process of AISI 314 stainless steel, Journal of New Materials for Electrochemical Systems, 20, 3, pp. 101-107, (2017)

[2]

Lopez-Mercado C.A., Spirin V.V., Kablukov S.I., Et al., Accuracy of single-cut adjustment technique for double resonant Brillouin fiber lasers, Optical Fiber Technology, 20, 3, pp. 194-198, (2014)

[3]

Mitrakos V., Macintyre L., Denison F., Et al., Design, manufacture and testing of capacitive pressure sensors for low-pressure measurement ranges, Micromachines, 8, 2, (2017)

[4]

Golyshev A.A., Malikov A.G., Orishich A.M., Et al., High-quality laser cutting of stainless steel in inert gas atmosphere by ytterbium fibre and CO2 lasers, Quantum Electronics, 44, 3, pp. 233-238, (2014)

[5]

Lutey A.H.A., Fortunato A., Ascari A., Et al., Laser cutting of lithium iron phosphate battery electrodes: characterization of process efficiency and quality, Optics & Laser Technology, 65, pp. 164-174, (2015)

[6]

Adalarasan R., Santhanakumar M., Rajmohan M., Optimization of laser cutting parameters for Al6061/SiCp/Al2O3 composite using grey based response surface methodology (GRSM), Measurement, 73, pp. 596-606, (2015)

[7]

Chen C., Gao M., Zeng X., Relationship between temperature at cut front edge and kerf quality in fiber laser cutting of Al-Cu aluminum alloy, International Journal of Machine Tools & Manufacture, 109, pp. 58-64, (2016)

[8]

Li S., Tian X., He J., Et al., Laser cutting flow curve of automatic flow control valves, Chinese Journal of Lasers, 38, 10, (2011)

[9]

Schuocker D., Aichinger J., Majer R., Dynamic phenomena in laser cutting and process performance, Physics Procedia, 39, 39, pp. 179-185, (2012)

[10]

Eltawahni H.A., Hagino M., Benyounis K.Y., Effect of CO2 laser cutting process parameters on edge quality and operating cost of AISI316L, Optics & Laser Technology, 44, 4, pp. 1068-1082, (2012)

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