Influence of Ultrasonic Burnishing Technique on Surface Quality and Change in the Dimensions of Metal Shafts

Table 5

Diameter results.

Material	Premachined surface Ra [µm]	Premachined surface [mm]	Finished surface [mm]	Difference [mm]	Relative [%]
Aluminium	1.7	87.51	87.5	−0.01	−0.0114
	3.5	87.53	87.51	−0.02	−0.0228
	6.2	87.56	87.53	−0.03	−0.0343
S355J2	1.7	71.155	71.145	−0.01	−0.0140
	2.6	71.165	71.155	−0.01	−0.0140
	5.6	71.185	71.155	−0.03	−0.0423
34-CrNiMo6	1.5	87.99	87.985	−0.005	−0.0057
	3.26	87.99	87.985	−0.005	−0.0057
	5.3	88.04	88.02	−0.02	−0.0227