The study of the high-frequency stress waves in the abrasive electrical discharge grinding of titanium alloy

Sutowski, Paweł; Święcik, Robert

doi:10.17814/mechanik.2016.8-9.266

Cited by 1 publication

(1 citation statement)

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“…by carrying it out at lower cutting speed and depth of cut [4]; supervision of the machining process, i.e. by monitoring grinding power, temperature [5] or force [6]; use of the grinding wheels with diamond [7], cubic boron nitride (CBN) (i.e. [8,9]), silicon carbide (SiC) (i.e.…”

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confidence: 99%

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

Święcik

2017

Int J Adv Manuf Technol

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The paper presents the results obtained for abrasive electro-discharge grinding (AEDG) of Ti6Al4V titanium alloy with the use of super hard grinding wheels of cubic boron nitride with a metal bond. The experimental investigations were focused on process monitoring for sharp and worn grinding wheels. For the evaluation of the grinding process, the grinding force amplitude and a few descriptors of the high-frequency stress waves were investigated in both time and frequency domains. The results show that during the AEDG, specific elastic waves are generated. Since these waves have characteristic amplitudes, frequencies, and other different descriptors dependent on the current grinding wheel cutting ability and discharge parameters, they can be applied to estimate a statistically significant regression function. For each measurement signal, a few statistical features are calculated and used as input for data selection and classification procedures. Registration and classification of forces and acoustic emission signals can be used to analyse the abrasive electro-discharge grinding process and allow for the determination of the machining results and the lifespan of super hard grinding wheels.

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