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Optimization of Cutting Conditions Using Regression and Genetic Algorithm in End Milling Omar Monir Koura1 and Ahmed Samy El-akkad2 1 Mechanical Department, Faculty of Engineering, Modern University for Technology & Information, Egypt * 2 Design & Prod.
Li, et al (2014) [3] has studied the basic relationships between tool wear, surface integrity, and fatigue in end milling of Inconel 718.
Surasit Rawangwong, et al (2013) [8] investigated the effect of some factors of the surface roughness in aluminum semi-solid 2024 face milling.
Table 1: Composition of test material C Si Mn P S Cr Mo Ni Al Co 0.1322 0.1727 0.4673 0.0476 0.0195 0.0048 <0.005 0.0331 0.0078 <0.01 Cu Nb Ti V W Pb Sn Sb Zn Fe 0.0123 <0.001 <0.001 <0.001 0.0125 0.005 0.0033 <0.005 <0.001 99.08 Also, the machine used was a CNC Anayak machining center 25 Kw main motor, Figure 1 Figure 1: Test arrangement Surface quality was assessed using the Surtoronic 2.

For titanium and titanium alloys produced using PM routes, most of the early data on fracture toughness were published by Eylon et al. and Donachie et al. during the late 1990s [6, 24].
Most recently, El-Soudani et al. have carried out detailed work on the optimisation of extrusions for aerospace applications deriving from blended elemental powder based Ti-6Al-4V [42].
During 1970s and early 1980s Conrad et al
El-Soudani et al. had measured the fracture toughness of blended elemental powder based Ti-6Al-4V extrusions containing a range of oxygen and hydrogen contents, but this study does not show any trends because of non-systematic range of both interstitial elements [42].
El-Soudani, K.

This paper extends the study of Mathirajan et al.
Balasubramanian et al. [4] developed some heuristics based on genetic algorithms (GA) for parallel batch-processing machine problems with incompatible job families.
Chiang et al. [5] extended the static parallel batch-processing machine problems of Balasubramanian et al. [4] to dynamic problems in which arbitrary job release times are considered, and developed a memetic algorithm to solve the problems.
Li et al. [6] adopted the batch-first concept proposed by Balasubramanian et al. [4].
Graham, E.L.

The preparation process include following stages: (i) producing Cu-0.5%Al pre-alloyed powder by water atomization method; (ii) Oxidation of atomized Cu-Al alloy powder at approximately 900 ͦ C for 1 hour in the air; (iii) Reduction in hydrogen atmosphere at 800 ͦ C for 1 hour; (iv) Pre compacting of powder at 500Mpa in a copper can; and (v) Extruding of pre-compacted sample at 900 ͦ C in an argon atmosphere to a rod with 17 mm diameter followed by drawing to get a high density of dislocations.Tensile properties at ambient and elevated temperatures were determined in according to the standard test methods (ASTM E8M).
sample Test temperature UTS [MPa] Yield [Mpa] %el %ra Hardness [HBN] CA600 600 ͦ C 274 189 4.8 4.6 105 CA680 680 ͦ C 173 132 4.8 5.6 92 CA780 780 ͦ C 132 119 5.4 5.6 89 CA25 RT 547.5 510 (%e=0.2) 14.11 38.3 160 (a) (b) Fig. 1.

., Bragdon C.R. et al. reported that cross-linked structures increased of wear resistance [9].
Absorption band with wavenumber 1000–900 cm-1 corresponding to Si-O-Me, where Me can be Al, Mg or Fe [18] was registered as well as absorption bands corresponding to Si-O-R (1110–1000 cm-1) and Si-CH2(CH2)nCH3(1220–1170 cm-1)[12].
El Hakim, Mohamed A.

An Intrinsic Angiogenesis Approach and Varying Bioceramic Scaffold Architecture Affect Blood Vessel Formation in Bone Tissue Engineering In Vivo Doaa Adel-Khattab1, 2,a, Marian Kampschulte3,b, Barbara Peleska,4,c Renate Gildenhaar5,d, Georg Berger5,e, Cynthia Gomes5,f, Ulf Linow5,g, Jens Günster5,h, Alireza Houshmand1,i, Michael Stiller1,j, Khaled Abdel Ghaffar 2,k, Ahmed Gamal 2,l, Mohamed EL-Mofty2,m and Christine Knabe1,n* 1Department of Experimental Orofacial Medicine, School of Dental Medicine, Philipps University Marburg, Georg-Voigt-Str. 3, 35039 Marburg, Germany 2Department of Oral Periodontology, School of Dentistry, Ain Shams University, Egypt 3Dept of Radiology, Medical School, Justus Liebig University of Giessen, Germany 4Department of Prosthodontics, School of Dentistry, Philipps University, 35039 Marburg, Germany 5 BAM Federal Institute for Materials Research and Testing, Unter den Eichen 44 - 46, Berlin adoaadel12345@yahoo.com, b marian.kampschulte@radiol.med.uni-giessen.de
The perfusion with the contrast agent (Microfil® MV-122, Flow Tech, Carver, MA, USA) was performed as described by Kampschulte et al [10], followed by removal of both thighs including the femora.
The sections were measured semiautomatically using a light microscope (BX63; Olympus, Hamburg, Germany) in combination with a digital camera (DP73, Olympus, Hamburg, Deutschland) and cellSens TM software; semi-quantitative analysis of the immunohistochemically stained sections was performed as described previously (Knabe et al. 2006) [11].
The increase of blood vessel diameter of the RP, cells & AVB group was in accordance with findings by Polykandriotis et al. [13], who observed an increase in diameter of blood vessels after 2 months, which accommodated increased perfusion from arterioles, precapillary arterioles, capillaries and postcapillary venules to draining venules and veins.
Thormann, El T.

The materials used were AZ61 alloys, whose chemical composition is 5.7％ Al, 0.9％ Zn, Fe, Si<0.01％, balanced Mg.
The Mg-Al-Zn compounds distribute in the magnesium matrix in discontinuous foil-like form and their contents decrease.
Effect of electromagnetic vibrations on microstructure of continuously cast aluminum alloys, Mater Sic Eng, 1993, A173: 169-172 [6] El-Bassyouni T A.
Molidification of Solidification Structures by Pluse Electric Discharging, ISIJ Inter 1990, 30(1): 27-33 [8] Li J M, Li S L, Li J et al, Molidification of Solidification Structure by Pluse Electric Discharging, Scr Metall Mater, 1994, 31(12): 1691-1694 [9] Zi B T,Ba Q X,Cui J Z et al.
Principle of Metallic Solidification, Beijing: Mechanical Industrial Press, 2008, 80-106, 117-151 [12] Bao W P, Xu G M, Ban C Y et al.

Klein et al. in these conference proceedings.
To characterize the cyclic deformation of the Al sheets strain gauges (SG) were used above the welded zone.
Fig. 5: Displacement amplitude and change in el. resistance DR in stepwise load-increase tests of AA5754(AP)/CF-PA66-joints [11] The electrical resistance vs.
The load level at point ‚ is equivalent to the yield strength of the Al/CFRP-joint[11].
Hence, electrical resistance is a well suited and highly sensitive physical value to describe the actual fatigue state of Al/CFRP-joints.

Melt Conditioned Twin Roll Casting (MC-TRC) of Thin Mg-Alloy Strips for Direct Stamping of Mg Components Sanjeev Das1,a, Shouxun Ji1, Omer El Fakir2, Liliang Wang2, John Dear2, Jianguo Lin2, Ian Stone1, Geoff Scamans1 and Zhongyun Fan1,b 1The EPSRC Centre - LiME, BCAST, Brunel University, UB8 3PH, UK 2Department of Mechanical Engineering, Imperial College London, London, SW7 2AZ, UK asanjeev.das@brunel.ac.uk, bzhongyun.fan@brunel.ac.uk Keywords: Magnesium alloy, Microstructure, Twin roll casting, Melt conditioning, Stamping Abstract.
However, addition of GR in the TRC process results in nozzle blockage and upstream nucleation [8], and furthermore, there is currently no effective GR available for Al containing Mg-alloys.
Cho, Microstructure and mechanical properties of Mg-Al-Mn-Ca alloy sheet produced by twin roll casting and sequential warm rolling, J.

MAC routing protocol Ahutu, O.R. and El-Ocla, H.,[12] have designed a centralized MAC routing protocol in order to support an infrastructure less network to handle the energy consumption and thereby improve the performance of the network.
Data transmission rate and congestion of network is not considered. [12] Ahutu, O.R. and El-Ocla, H., 2020 C-MAC Detects the wormhole attack efficiently, has less control heads and also improved efficiency Reduces the overheads and detects the wormhole attack.
Al Sibahee, M.A.
[12] Ahutu, O.R. and El-Ocla, H., 2020, November.
[36] Al Shehri, W., 2017.