Tehnički vjesnik, Vol. 19 No. 3, 2012.
Izvorni znanstveni članak
Effect of clamping pressure on parts inaccuracy in turning
Monika Maračeková
; Slovak University of Technology, Faculty of Materials Science and Technology, Paulinska 16, 91724 Trnava, Slovak Republic
Marek Zvončan
; Slovak University of Technology, Faculty of Materials Science and Technology, Paulinska 16, 91724 Trnava, Slovak Republic
Augustín Görög
orcid.org/0000-0002-6685-889X
; Slovak University of Technology, Faculty of Materials Science and Technology, Paulinska 16, 91724 Trnava, Slovak Republic
Sažetak
The article is focused on problem of deviations generated during the turning process. One of the parameters influencing the deviations in turning is clamping pressure. To verify this presumption a set of experiments was performed on a turning machine with clamping pressure 3,2 MPa. A hollow cylinder with the outer diameter of 60 mm made of low carbon steel EN ISO C16E 1.1148 was used in the experiment. The evaluated parameter was the roundness deviation measured by ZVL MK 300C device using three different filters (2 ÷ 500, 2 ÷ 15, 16 ÷ 150). It was found that the clamping pressure induces elastic deformations, causing the roundness deviation in machined hollow cylinder and therefore the shape of the part before and after machining is not equal. The roundness deviation proportionally depends on set out of the part from the chuck as well as on clamping pressure. To avoid deformations and obtain lower roundness deviation a different clamping system e.g. collet should be used.
Ključne riječi
inaccuracy; measurement; roundness deviation; turning; workpiece
Hrčak ID:
86722
URI
Datum izdavanja:
19.9.2012.
Posjeta: 5.221 *