EFFECT OF SURFACE TEXTURE TOWARDS PRODUCT
INSTITUT PENYELIDIKAN, PEMBANGUNAN DAN PENGKOMERSILAN
UNIVERSITI TEKNOLOGI MARA 40450 SHAH ALAM, SELANGOR
MALAYSIA
PERFORMANCE
BY:
MOHD FAUZI ISMAIL MUNIROH HAMAT RIZAL MOHAMED NOR
FEBRUARY 2007
Tarikh : 2 Februari 2007
No. fail projek: 600-IRDC/ST 5/3/1085
Kepada,
Penolong Naib Canselor (Penyelidikan)
Institut Penyelidikan, Pembangunan dan Pengkomersilan Universiti Teknologi Mara
40450 Shah Alam Selangor
Y. Bhg. Prof.,
LAPORAN AKHIR PENYELIDIKAN ‘EFFECT OF SURFACE TEXTURE TOWARDS PRODUCT PERFORMANCE”
Merujuk kepada perkara di atas, bersama-sama ini disertakan 4 (empat) naskah laporan akhir penyelidikan yang bertajuk “Effect of Surface Texture Towards Product Performance''.
Sekian, terima kasih.
Yang benar,
(MOHD FAUZI ISMAIL) Ketua Projek Penyelidikan
PROJECT TEAM MEMBERS
MOHD FAUZI ISMAIL Project Leader
Signature
MUNIROH HAMAT Project Member
RIZAL MOHAMED NOOR
Table of Contents
Penghargaan...i
Table of Contents... ii
List of Figures...iv
List of Tables...vi
Abstract...vii
Chapter 1.0 Introduction...1
1.1 Foreword... 1
1.2 Project Objective...1
1.3 Research Methodology... 2
Chapter 2.0 Literature Review... 4
2.1 Printing and PS Plate... 4
2.1.1 Printing... 4
2.1.2 Offset Printing... 5
2.1.3 PS Plate...6
2.1.4 Printing Plate Processing using PS Plate...7
2.1.5 PS Plate Manufacturing Process... 8
2.1.6 PS Plate Capability Evaluation... 8
2.1.7 Printing Durability Factor... 9
2.2 Engineering Surface Analysis... 9
2.2.1 Linear Multiple Regression Analysis... 10
Chapter 3.0 Problem Statement... 12
3.1 Surface Processing to Function Assessment... 12
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3.2 Observation on PS Printing Plate Durability...14
3.3 Hypothesis on the Physical Phenomenon...16
3.3.1 Hypothesis 1 (Low band surface)...18
3.3.2 Hypothesis 2 (Low band surface)...19
3.3.3 Hypothesis 3 (High band surface)... 20
Chapter 4.0 Experiment and Measurement... 22
4.1 Sample Preparation... 22
4.2 PS Plate Durability Test... 23
4.3 Surface Topography Measurement... 23
4.3.1 Measuring Machine’s Specification... 24
4.3.2 Stylus Tip Radius Effects... 24
4.3.3 Discrete Surface Topography Data Form ... 26
4.3.4 Measuring Machine Calibration... 28
4.3.5 Surface Topography Measuring Condition... 28
Chapter 5.0 Data Analysis... 40
5.1 Durability Test Result... 40
5.2 Surface Texture Measurement Result... 41
5.3 Surface Texture Data Splitting... 42
5.4 3D Surface Roughness Parameters... 46
5.5 Surface Topography and Surface Function...47
5.5.1 Roughness Parameter and Durability... 47
5.5.2 Multi Regression Analysis Result and Discussion... 53
Chapter 6.0 Conclusion... 59
Bibliography... 61
iii
Abstract
Together with the development of industrial product in sense of precision and quality, there are many cases showing that the geometrical properties of microscopic roughness configuration on the surface influence its function and performance.
Surface of aluminium base for printing plate (PS plate) is one of the examples. In this project, the causal relationship between PS plate aluminium base surface topography and its functional capability (printing durability) is studied. PS plates are tested for printing capability and the capability index; in this case durability index is quantified.
Surface profiles of aluminium base for samples are captured using 3D stylus type roughness measuring machine. In this study, surface profiles measured are split to low band surface and high band surface using robust spline filter. Each band surface profiles had been characterised using 3D surface roughness parameters. Based on the roughness parameters and durability index, analysis of causal relationship between the durability index and surface profiles is done using SPSS. As a result, the following knowledge is gained.
1. The measuring method and condition in obtaining the reliable result for quantitative analysis of PS plate aluminium base surface texture is proposed.
2. Surface splitting method is introduced in this project and contributes another example in rough surface analysis field.
3. 3 dimensional surface analysis proposed in this project provide a better understanding in the surface condition due to the 3D imaging technique
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4. Roughness parameter that should be monitor during roughening process of the PS plate is proposed. This method also can be used by the purchaser in incoming quality control if the PS plate is supplied by third party.
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