The estimation of machining results and efficiency of the abrasive electro-discharge grinding process of Ti6Al4V titanium alloy using the high-frequency acoustic emission and force signals

Sutowski, Paweł; Święcik, Robert

doi:10.1007/s00170-017-1011-9

Cited by 15 publications

(4 citation statements)

References 51 publications

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“…The new, innovative grinding methods include: high-speed grinding (HSG) [4,5], high efficiency deep grinding (HEDG) [6][7][8], grinding with reduced grinding wheel contact (Quickpoint) [9,10], and hybrid grinding: electrochemical grinding (AECG) [11][12][13][14], electrolytic in-process grinding-ultra-precision grinding (ELID) [15,16], electrodischarge grinding (AEDG) [17][18][19][20]. These grinding methods mainly use modern grinding wheels made of superhard abrasives (natural diamond-ND, synthetic diamond-SD or cubic boron nitride-cBN), bonded with a metal bond.…”

Section: Introductionmentioning

confidence: 99%

Electrodischarge Methods of Shaping the Cutting Ability of Superhard Grinding Wheels

et al. 2021

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In the paper, the influence of the electrodischarge dressing methods of superhard grinding wheels on shaping their cutting ability are presented. The results of research concerning the influence of dressing conditions using a stationary electrode, rotating electrode and segmental tool electrode on shaping the cutting ability of the superhard grinding wheels are reported. The cutting ability of superhard grinding wheels is assessed using an external tester made of titanium alloy Ti-6Al-4V (with a thermocouple) to determine the grinding temperature and the relative volumetric grinding efficiency of the tool. The results of the research reveal the diversified usefulness of the analyzed methods. At the end of the article application conclusions concerning the adaptation of developed methods of electrodischarge dressing in the industry are formulated.

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Section: Introductionmentioning

confidence: 99%

Electrodischarge Methods of Shaping the Cutting Ability of Superhard Grinding Wheels

et al. 2021

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“…The AE generated during machining and grinding processes has been proved to be related to the process state and to the surface condition of the tool and workpiece [ 17 , 18 ]. Therefore, AE technology has been widely used as a non-destructive inspection method for monitoring a wide variety of machining processes and industrial applications [ 19 ], including grinding [ 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 ], turning [ 31 , 32 , 33 ], electro-discharge grinding [ 20 ], sawing [ 34 ], abrasive water jet machining [ 35 ], rock bridge stability [ 36 ], welding [ 37 ], vibroarthrography [ 38 ], monitoring of concrete materials [ 39 , 40 ], leakage [ 41 ], and power system [ 42 ].…”

Section: Introductionmentioning

confidence: 99%

Grinding Wheel Loading Evaluation by Using Acoustic Emission Signals and Digital Image Processing

Liu

2020

Sensors

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In the manufacturing industry, grinding is used as a major process for machining difficult-to-cut materials. Grinding is the most complicated and precise machining process. For grinding machines, continuous generating gear grinding machines are widely used to machine gears which are essential machine elements. However, due to its complicated process, it is very difficult to design a reliable measurement method to identify the grinding wheel loading phenomena during the grinding process. Therefore, this paper proposes a measurement method to identify the grinding wheel loading phenomenon in the grinding process for continuous generating gear grinding machines. In the proposed approach, an acoustic emission (AE) sensor was embedded to monitor the grinding wheel conditions; an offline digital image processing technique was used to determine the loading areas over the surface of Al2O3 grinding wheels; and surface roughness of the ground workpiece was measured to quantify its machining quality. Then these three data were analyzed to find their correlation. The experimental results have shown that there are two stages of grinding in the grinding process and the proposed measurement method can provide a quantitative grinding wheel loading evaluation from the AE signals online.

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“…So far, the use of this type of sensor in centrifugal disc finishing process research has not been noticed by authors. Sutowski and Sutowska [6] presented a possible AE diagnostic method to be applied in the abrasive waterjet machining, cylindrical grinding [7], abrasive electro-discharge grinding process [8], and analysis of decohesion process of abrasive grains [9].…”

Section: Introductionmentioning

confidence: 99%

Determining kinetic energy distribution of the working medium in a centrifugal disc finishing process—part 2: experimental analysis with the use of acoustic emission signal

Sutowski

Plichta

Kaldunski

2019

Int J Adv Manuf Technol

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This paper addresses the problem of estimating the kinetic energy distribution of the working medium in a centrifugal disc finishing process. Centrifugal disc finishing is a highly effective way of finishing surfaces, especially in the case of complex shapes, made from a variety of materials. The process is, however, frequently very time-consuming. The identification method of a region with a high kinetic energy potential by measurement of acoustic emission signal is described and verified by surface roughness tests. Signal analysis was carried out in both time and frequency domain. The results presented in experimental tests and analyses indicate that various parameters of the AE signal, including its energy, are variable and determined by abrasive particles' velocity and location in an axial cross section of the working medium. On the basis of the root mean square value of the signal, the maps of the distribution of the energy potential of the working medium are presented. Experimental results demonstrate process improvement and a significant reduction (approx 60%) of the arithmetic mean deviation of surface roughness, obtained at the same time of machining. The article also presents the functional relations between the selected AE signal descriptors and the rotational speed of the working chamber rotor. Since the article is a continuation of the previous studies, the results obtained were briefly referred to the simulation results.

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The estimation of machining results and efficiency of the abrasive electro-discharge grinding process of Ti6Al4V titanium alloy using the high-frequency acoustic emission and force signals

Cited by 15 publications

References 51 publications

Electrodischarge Methods of Shaping the Cutting Ability of Superhard Grinding Wheels

Electrodischarge Methods of Shaping the Cutting Ability of Superhard Grinding Wheels

Grinding Wheel Loading Evaluation by Using Acoustic Emission Signals and Digital Image Processing

Determining kinetic energy distribution of the working medium in a centrifugal disc finishing process—part 2: experimental analysis with the use of acoustic emission signal

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