الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Experimental work has been done to study the effect of surface roughness on horizontal cylinder cooling.
Changing parameters such as specimen initial temperature, coolant temperature, number of impinging jets, the effect of coolant velocity and surface roughness have been studied to investigate its effects.
The study consists of five chapters as follow:
• Chapter one:
Contains an introduction to the quenching process, history, technique, applications, impinging jet, regions of cooling curves, surface roughness.
• Chapter two:
Includes the literature review of some of the previous researches which are interrelated with the subject of this study with a brief summary for each of them, and then the purposes of this study will be discussed.
• Chapter three:
This chapter consists of the experimental set up and the procedure used in this study. Also the operation and the investigated parameters is clarified.
• Chapter four:
Deals with the results of the tests, analysis of these results, and the phenomena and criteria are determined from them.
• Chapter five:
Represents the conclusions of the present work. Finally recommendation of the future work is presented.