Amin Kolahdooz

[ 1 ] - The Parameters Investigation and Hardness Optimization of A380 Aluminum Alloy produced by Mechanical Vibrator

The use of aluminum alloys in various industries, especially the automotive industries, to have less structural weight, is on the rise. The use of semi-solid forming process in addition to changes in the microstructure which improves the mechanical properties can reduce the volume of production and ultimately lead to the improvement of the structural weight. In this paper, optimization of the g...

[ 2 ] - Study of the Notching HSS Rolls by CBN Tool using RSM Method

One of the biggest problems of artisans , is notching the high speed steel roller is due to the inability to do this work, become high speed steel roller bearings are disposable. One of the biggest problems of artisans , is notching the high speed steel roller is due to the inability to do this work, become high speed steel roller bearings are disposable.When the roller is placed on the product...

[ 3 ] - Experimental Study of the Voltage and Number of the Coil Rounds in Electromagnetic Forming Process of the V shape Aluminum sheets

Electromagnetic power, which is one of the fast ways for forming, is used for forming workpieces without having any effect on them. Using it causes the workpieces to reach the minimum back spring and tear; consequently building the equipment like pistons will cost less than before. Electromagnetic power is used for forming Aluminium sheets into V shapes in this study. As the coils connect the m...

[ 4 ] - Optimization of Material Removal Rate in Electrical Discharge Machining Alloy on DIN1.2080 with the Neural Network and Genetic Algorithm

Electrical discharge machining process is one of the most Applicable methods in Non-traditional machining for Machining chip in Conduct electricity Piece that reaching to the Pieces that have good quality and high rate of machining chip is very important. Due to the rapid and widespread use of alloy DIN1.2080 in different industry such as Molding, lathe tools, reamer, broaching, cutting guillot...

[ 5 ] - The Effect of Geometrical Parameters of Cylindrical Composite Lattice Structures on Buckling Behavior

Due to their light weights and high load carrying capacities, composite structures are widely used in various industrial applications especially in aerospace industry. Stiffening ribs are the main features of lattice type composite structures. Strength to weight ratio is known to be as one of the most critical design parameter in these structures. In this study, the effect of some parameters su...

[ 6 ] - The Effect of Electrical Discharge Machining Parameters on Alloy DIN 1.2080 Using the Taguchi Method and Optimal Determinant

Electrical discharge machining process, is one of the most widely used methods for machining, the electrically conductive parts. In this way the tool is not in contact with the workpiece and the hardness of workpiece does not affect the machining speed. In Electrical Discharge Machining process, selection of the correct machining parameters are effective in final cost and the quality of the pro...

[ 7 ] - Optimization of Microstructure and Mechanical Properties of Al-A360 Produced by Semi-Solid Casting

Semi-Solid Casting (SSM) is a new process that could produce globular structures with mechanical properties. The cooling slope method (CLM) is a one of this process that was employed to produce the A360 feedstock. In this method, The dendritic primary phase in the conventionally cast A356 alloy has transformed into a non-dendritic one. In this paper, The molten alloy with the temperature (PT) o...

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[ 9 ] - Super Plasticity of /α Duplex Stainless Steels

In this paper the studies of the two-phase super Plasticity stainless steels is studied. The aim of this study obtained the suitable criteria to thermo-mechanical treatment condition for decrease the microstructure (grain size) and super plasticity property in two-phase stainless steels. Also here we want to show the appropriate ranges of temperature and strain rate used in the process super pl...

[ 10 ] - بهینه‌سازی یک نمونة واقعی سکان شناور 800 تنی به‌کمک تغییر مکانیزم سیستم هیدرولیکی فرمان

سیستم سکان، مسئولیت مهمی در هدایت و کنترل شناورها و کشتی ها برعهده دارد. این امر در زمان دور زدن یا انحراف شناور می‌تواند حساسیت بیشتری در زمان طراحی داشته باشد. با توجه به پیشرفت چشمگیری که در حوزة معماری کشتی و دانش سیالات به‌وجود آمده، این مهم در دو بخش قابل تأمل است: طراحی هیدرودینامیکی بال (تیغه) سکان و طراحی سیستم فرمان و تجهیزات انتقال دستور به مکانیزم بال شناور. در این مقاله، که به‌صورت...

[ 11 ] - A Novel Optimization Approach Applied to Multi-Pass Turning Process

Optimization of turning process is a non-linear optimization with constrains and it is difficult for the conventional optimization algorithms to solve this problem. The purpose of present study is to demonstrate the potential of Imperialist Competitive Algorithm (ICA) for optimization of multipass turning process. This algorithm is inspired by competition mechanism among imperialists and coloni...

[ 12 ] - An Optimization on the DIN1.2080 Alloy in the Electrical Discharge Machining Process Using ANN and GA

Electrical Discharge Machining (EDM) process is one of the most widely used methods for machining. This method is used to form parts that conduct electricity. This method of machining has used for hard materials and therefore selects the correct values of parameters which are so effective on the quality machining of parts. Reaching to optimum condition of the DIN1.2080 alloy (D3) machining is v...

[ 13 ] - بهینه سازی بازده نموداری توربین بخار به کمک الگوریتم ژنتیک

امروزه تولید برق مهمترین بخش تولید انرژی در صنایع را به خود اختصاص داده است که در این رهگذر، بهینهسازی مصرف انرژی و توان نیروگاهی میتواند در صرفهجویی انرژی مفید واقع شود. یکی از بخشهای مهم نیروگاهی، طراحی و ساخت توربینها، اعم از توربینهای هیدرولیکی، بخاری، بادی و هستهای میباشد. بدین منظور طراحی نیروگاهها بهعنوان مهمترین موضوع مد نظر قرار میگیرد. در این مقاله، با توجه به روابط مهندس...

[ 14 ] - Experimental and FEM Analysis of Ribs Defects on Composite Lattice Cylindrical Shells

In this study, the behavior of a composite lattice cylindrical shell is investigated in the buckling deforming. Also, the distribution of shell buckling response and the stress field is studied after making some defects on the ribs.Therefore using ANSYS software, a 3D finite element model of the shell has been created for the analysis. Material properties and geometrical data of the shell are o...

[ 15 ] - A Novel Optimization Approach Applied to Multi-Pass Turning Process

Optimization of turning process is a non-linear optimization with constrains and it is difficult for the conventional optimization algorithms to solve this problem. The purpose of present study is to demonstrate the potential of Imperialist Competitive Algorithm (ICA) for optimization of multipass turning process. This algorithm is inspired by competition mechanism among imperialists and coloni...

[ 16 ] - An Optimization on the DIN1.2080 Alloy in the Electrical Discharge Machining Process Using ANN and GA

Electrical Discharge Machining (EDM) process is one of the most widely used methods for machining. This method is used to form parts that conduct electricity. This method of machining has used for hard materials and therefore selects the correct values of parameters which are so effective on the quality machining of parts. Reaching to optimum condition of the DIN1.2080 alloy (D3) machining is v...