Technological Assurance of Surface Roughness in Pocket Milling
Proceedings of the International DAAAM Symposium on Intelligent Manufacturing and Automation. Vol.31, Iss.1 2020
Jyothi Prasad Gandreddi, Ēriks Geriņš, Artis Kromanis, Jānis Lungevičs

In the 21st century milling is the main machining process to obtain complex shapes. Obtaining a smooth surface after machining is very important. The toolpaths and cutting parameters are very important to obtain good surface roughness and productivity in milling, as well as the cutting speed and feed rate are the main parameters to look out for. In the following research paper, a machining of medium carbide steels like C45 was performed to study the influence of machining parameters on surface roughness. Pocket milling of C45 steel in three toolpaths one-way, two-way, helical (inward) with 8mm carbide tool at different feed rates and cutting speeds but with constant depth of cut (1mm) for all samples is conducted to compare the surface roughness. One way tool path provided better results at low feed rate (0.01 to 0.03 mm/tooth) and at low cutting speeds (100-250 m/min) but rubbing of cutting tool is more at the starting point of machining and it also results in more air gaps between two cutting paths. Due to big air gaps this toolpath may not be suitable for mass production. In two way and helical toolpaths, finer surface roughness was obtained at low feed rates. So, low feed rates are very effective in pocket milling to obtain good surface roughness. Further research may be done by varying depth of cut and further increasing cutting speeds.


Atslēgas vārdi
Surface roughness, Pocket milling; Feed, Cutting speed, Depth of cut
DOI
10.2507/31st.daaam.proceedings.080
Hipersaite
https://www.daaam.info/Downloads/Pdfs/proceedings/proceedings_2020/080.pdf

Gandreddi, J., Geriņš, Ē., Kromanis, A., Lungevičs, J. Technological Assurance of Surface Roughness in Pocket Milling. No: Proceedings of the International DAAAM Symposium on Intelligent Manufacturing and Automation. Vol.31, Iss.1, Bosnija un hercegovina, Mostar, 21.-24. oktobris, 2020. Vienna: DAAAM International, 2020, 584.-591.lpp. ISBN 9783902734297. ISSN 1726-9679. Pieejams: doi:10.2507/31st.daaam.proceedings.080

Publikācijas valoda
English (en)
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