Characterization of a Cylinder Liner Surface by Roughness Parameters Analysis

Cylinder liner surface topology greatly affects oil consumption and wear of engines. Surface optimization would be greatly facilitated by automatic quality control. Surface roughness definitions, parameters, and measurement techniques were reviewed and samples of different Volvo truck engine cylinder liner types were measured. Routines for extracting and computing groove parameters, useful in the automation of quality control in production, were developed, implemented in MATLAB and applied on the samples. The principles of the last two steps procedures needed to fully automate the surface grading by roughness parameters analysis were described.


1 Notation
2 Introduction
2.1 Background
2.1.1 The Ideal Cylinder Liner Surface
2.1.2 The Real Cylinder Liner Surface
2.2 Purpose and Problem description
2.3 Related work
2.4 Report structure
3 Surface roughness
3.1 Basic definitions
3.1.1 Tribology
3.1.2 Surfaces
3.1.3 Surface Profiles
3.1.4 Surface Profile Filtering
3.2 Parameters
3.2.1 Amplitude Parameters
3.2.2 Spacing Parameters
3.2.3 Bearing Ratio Parameters
3.3 Measurement techniques and instruments
3.3.1 Stylus
3.3.2 Interferometer
4 Experiments
4.1 Determination of the needed number of measurements
4.2 Measurements and Computation of the Standardized Parameters
5 Grading Analysis
5.1 Groove Parameters Analysis
5.2 Grading Factor Analysis
5.3 Determination of the Final Grade
6 Conclusions and Discussions
7 References
8 Appendices

Author: Zlate Dimkovski

Source: Blekinge Institute of Technology

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