Use of Pulsed CO2 Laser in Laser Roll Bonding of A5052 Aluminium Alloy and Low Carbon Steel

2006 ◽  
Vol 50 (7-8) ◽  
pp. 28-36 ◽  
Author(s):  
M. Rathod ◽  
M. Kutsuna
2013 ◽  
Vol 315 ◽  
pp. 57-62 ◽  
Author(s):  
Sia Chee Kiong ◽  
Loo Yee Lee ◽  
Siaw Hua Chong ◽  
Mohd Azwir Azlan ◽  
Nik Hisyamudin Muhd Nor

This study is an approach to investigate the environmental impact of screw manufacturing and to choose suitable material for selected screw-making processes for the best performance with minimum environmental impact. The parameters involved were types of material and screw-making process using the environmental data available in Asia region. The two different manufacturing approaches being evaluated were machining and forging. The types of material considered were low carbon steel, stainless steel, titanium alloy and aluminium alloy. As for machining process, the materials being considered in screw manufacturing were low carbon steel, stainless steel, titanium alloy, aluminium alloy, magnesium alloy and cast iron. The information of environmental impact are generated by SolidWorks. Sustainability tool was used in the formation of pair-wise comparison matrices for Analytic Hierarchy Process (AHP). Then, the ranking of global priorities had enabled the determination of appropriate material to be used for those selected screw manufacturing process. As a result, aluminium alloy was found to give minimum environmental impact for forging process whereas cast iron was found to excel in machining process. At the same time, titanium alloy was not suggested to be used in either process.


2009 ◽  
Vol 50 (1) ◽  
pp. 56-63 ◽  
Author(s):  
Masaki Tanaka ◽  
Kenji Higashida ◽  
Tomotsugu Shimokawa ◽  
Tatsuya Morikawa

2021 ◽  
Vol 39 (7) ◽  
pp. 1052-1059
Author(s):  
Mohammed J. Kadhim ◽  
Mahdi M. Hanon ◽  
Suhair A. Hussain

In this article a 1.8kW continuous wave of high power CO2 laser was used to clad of a titular composition of Ni – 10 wt% Al powder on cold rolled 0.2% carbon steel substrate. The feed rate was kept constant after many preliminary claddings at approximately 11 g/min.  In order to produce clads with different specific energies and interaction times, different traverse speeds were used in the range of 1.5 to 12.5 mm/s. The microstructure of substrate was changed at the heat affected zones under the variety of specific energies. The cladded coatings showed the presence of ɣ solid solution and β (NiAlFe) phases. A strong metallurgical bonding produced between the substrate and the clad coat at fluence higher than 48 J/mm2. The changing in microstructure were observed using both microscope and SEM. The microhardness was evaluated using Vickerʼs microhardness test. The microstructure of the substrate was ferrite and pearlite transformed to martensite at the region adjacent to the clad interface. It followed by a three regions can be classified, a grain growth zone (large grains of austenite/ferrite and pearlite), recrystallization zone (fine grains of austenite/ferrite and pearlite) and recovery zone (the structure has a little changes from the structure of low carbon steel). The microhardness testing result showed higher values for the clad regions compared with substrate. This study emphasize the possibility to develop a temporary new graded material.


2013 ◽  
Author(s):  
M. Zaied ◽  
I. Miraoui ◽  
M. Boujelbene ◽  
E. Bayraktar

2003 ◽  
Vol 21 (1) ◽  
pp. 101-108 ◽  
Author(s):  
Muneharu KUTSUNA ◽  
Manoj RATHOD ◽  
Yoritada KOMODA ◽  
Yukihiko KAGOHARA

2009 ◽  
Vol 23 (8) ◽  
pp. 559-564 ◽  
Author(s):  
Katashi Miyagawa ◽  
Masami Tsubaki ◽  
Toshiaki Yasui ◽  
Masahiro Fukumoto

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