Original scientific paper

https://doi.org/10.17559/TV-20151108221718

Optimization of high-precision cylinder manufacturing

Peter Eniko ; Difa d.o.o., Kidričeva cesta 91, 4220 Škofja Loka, Slovenia
Davorin Kramar ; Faculty of Mechanical Engineering, University of Ljubljana, Askarceva 6, 1000 Ljubljana, Slovenia

Abstract

This paper deals with the reaming process optimization. The aim of optimization is that with controlled process suitable geometrical specifications could be achieved without final honing. To attain systematic improvements in manufacturing technology, transparent approach with the use of quality tools has been selected. SPC of bore cylindricity and surface roughness (Ra) of the original reaming process shows poor process capability and demonstrates shortcomings of the clamping device. Feed rate and spindle speed were identified as key factors in achieving required bore tolerances. Plan of experiments and process modelling was performed by DOE methodology. Regression analysis gives models for both responses, and they are adequate at 73 % and 96 % confidence level respectively. Optimization model was implemented in real production.

Keywords

cylinder bore; Design of Experiments (DOE); honing; reaming; Statistical Process Control (SPC)

Hrčak ID:

169698

URI

https://hrcak.srce.hr/169698

Publication date:

29.11.2016.

Article data in other languages: croatian

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