PT Journal
AU Muller, M
   Lebedev, A
   Svobodova, J
   Naprskova, N
   Lebedev, P
TI Abrasive-free Ultrasonic Finishing of Metals
SO Manufacturing Technology Journal
PY 2014
BP 366
EP 370
VL 14
IS 3
DI 10.21062/ujep/x.2014/a/1213-2489/MT/14/3/366
DE Hardness; Machining; Microscopy; Surface Roughness; Testing
AB The aim of the research was to compare a classical (turning) machining and an abrasive-free ultrasonic machining (bufo) at three different materials. The surface was evaluated on the basis of an Olympus LEXT 3100 measuring of a surface roughness and hardness HV5. An ultrasonic set I - 4 consisted of the ultrasonic generator, power output 630 W and working frequency 22 kHz ± 10%, was used for the research. Main results are: increasing of the hardness HV5 of the machined surface, lowering of the roughness parameters Ra at the application of the abrasive-free ultrasonic machining, lowering of the roughness parameters Rz was not statistically proved at the application of the abrasive-free ultrasonic machining. It is possible to say according to a visual observing of the steel sample surface that a corrosive resistance was increased at the application of the abrasive-free ultrasonic machining.
ER