چكيده به لاتين
Abstract:
Nowadays the use of aluminum in the industrial application is rising and many efforts have been performed to improve the properties of this alloy.
Friction Stir Welding (FSW) or Friction Stir Process (FSP) of such alloys by means of nano powders or nano particls is a newly suggested method for increasing the strength and mechanical properties of different Aluminum grads. In this technology, diff of input parameters such as tool shape, transverse and rotational speeds of the pin, welding material type, geometry of welded body and etc can affect significantly on the quality of joint made by (FSW/FSP) technique. The use of design of experiments (DOE) can help researcher to decrease the cost and total number of required experiments to obtain optimum input variables. Hence in this project using nano aluminum particles, the some mechanical properties of marine grade aluminum magnesium alloys is imported.
At first, using Taguchi design methods the required levels and input parameters for manufacturing aluminum-magnesium-reinforced composite using the FSW/FSP is obtained and then tensile and impact properties are investigated. With tensile tests it shown that the rotational speed and feed rate have the greatest impact on the amount of tensile strength of tested material.
Keywords: Optimization, friction stir processing, Nano-composite aluminum alloy manufactured, Laboratory study process connection
