| Issue |
MATEC Web Conf.
Volume 299, 2019
Modern Technologies in Manufacturing (MTeM 2019)
|
|
|---|---|---|
| Article Number | 04002 | |
| Number of page(s) | 10 | |
| Section | Machining Processes and Quality Assurance | |
| DOI | https://doi.org/10.1051/matecconf/201929904002 | |
| Published online | 02 December 2019 | |
Influence of Coolant Pressure Size on Surface Roughness when Stainless Steel Machining
1
VSB-TU Ostrava,
17. listopadu 2172/15,
708 00,
Ostrava,
Czech Republic
2
Technical University of Cluj Napoca,
Boulevard Muncii 103-105,
4000461,
Cluj-Napoca,
Romania
3
Technical University in Kosice,
Bayerova 1,
080 01,
Presov,
Slovakia
4
Zilina University in Zilina,
Univerzitná 8215/1,
010 26,
Zilina,
Slovakia
* Corresponding author: robert.cep@vsb.cz
The paper is focused on the influence of the coolant pressure on the surface roughness of the workpiece when machining stainless steels. The components were machined on a STAR SR-32J dual spindle machining center and an external cooling unit HYTEK CHAV 160/150-AF-F-OL was used for cooling. Two stainless steel components were investigated, namely the gas control valve rod and the high-pressure control valve housing, which require low roughness Ra after machining (less than 0.375 and 0.25 micrometers respectively). The first component was tested at 8 different pressures in the range of 150 bar - 10 bar and the second component at 4 different pressures in the range of 120 bar - 10 bar. The roughness parameters were measured by the contact method using the MITUTOYO Surftest SJ-410 Roughness Tester and the Alicona InfiniteFocus optical microscope. Based on these sample input parameters, it was evaluated howmuch the pressure affects the surface quality or suggested its reduction due to the high cost of operation of the external high-pressure equipment.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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