**Author details**

S.O. Ylmaz\* and M. Aksoy *Department of Material and Metallurgical Engineering Frat University Elaziğ, Turkey* 

<sup>\*</sup> Corresponding Author

C. Ozel, H. Phtl and M. Gür

*Department of Mecahnaical Engineering Frat University Elaziğ, Turkey* 

#### **5. References**

[1] Metal powder Industries Federation: "*Powder metallurgy Equipment Manuel*" New York, 1968.

**Chapter 2** 

© 2013 Bahçe and Ozel, licensee InTech. This is an open access chapter distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

© 2013 Bahçe and Ozel, licensee InTech. This is a paper distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

**Experimental Investigation of the Effect** 

**of Machining Parameters on the Surface** 

**(BUE) in the Drilling of Al 5005** 

Additional information is available at the end of the chapter

drilling process of aluminum and its alloys [2,3]

of the optimization of machining process [7,8].

Erkan Bahçe and Cihan Ozel

http://dx.doi.org/10.5772/56027

**1. Introduction** 

**Roughness and the Formation of Built Up Edge** 

Aluminum is one of the metals, besides iron and steel, which are widely used in many industrial fields such as aviation, navigation and automotive. The most considerable reasons why aluminum is so widely used are: i) it is light, ii) its alloys have higher strength than the construction steel, iii) it has high heat and electrical conductivity. Because of these excellent characteristics, the usage of aluminum as engineering material has an ever-increasing importance in several technological fields [1,2]. Although aluminum is widely used, there are many problems such as tool abrasion, burr formation and poor hole surface quality in

The surface quality, which is one of these problems, is quite important for the efficient working of machine parts. The structure of a machined surface is one of the most important criteria in terms of quality, and tribological properties of the machined surface are considerably affected from the surface tissue. Generally the surface quality is characterized with surface roughness. Surface roughness is an important factor which must be considered not only in the conventional subjects of tribology such as abrasion, friction and lubrication but also in different fields such as sealing, hydrodynamics, electrical and heat conductivity. Surface roughness is mainly affected during the machining process by cutting parameters such as cutting speed, feed rate and depth of cut [4,5,6]. If these parameters are not chosen convenient, the surface roughness increases. This situation creates a notch effect and results in crack initiation, decrease in fatigue strength and corrosion resistance. So, the characterization and measurement of surface roughness has a great important in the sense

