Abstract
This study examined the characteristics of machined surface layer by end milling-burnishing method of 304 stainless steel on the vertical machining center. Hardness and residual stress of the finished surface subjected to the end milling-burnishing process under conditions of cutting speed Vc = 20 m/min, feed rate f = 2μm/tooth, and radial depth of cut Rd= 5μm were markedly improved compared to the non-machined surface before end-milling. Micro-Vickers hardness test on the finished surface indicated obtained hardness of 469 HV at the highest value. In addition, the residual stress of the finished surface after the end milling-burnishing process was improved to - 1191 MPa. Here, the relationship between cutting conditions and surface integrity was examined experimentally to elucidate the characteristics of the machined surface layer.
