Abstract
The present research was undertaken to analyse the size effect of specific energy in grinding. The possibility of using the size effect in grinding for a controlled surface layer work hardening of metal parts is shown. To study these phenomena, an advanced grinding process of abrasive material removal in combination with plastic deformation has been designed and used for the investigations. To achieve high specific energy values and to minimise thermal effects counteracting the work hardening, the approach used requires the application of low depths of cut in combination with low cutting speeds. Experimental results show a good correlation between the specific grinding energy, that is, the size effect on the one hand and compressive residual stresses and their penetration depth characterising the work hardening on the other hand.
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