Babak Beglarzadeh - Academia.edu (original) (raw)
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Papers by Babak Beglarzadeh
The International Journal of Advanced Manufacturing Technology, Oct 28, 2022
Cirp Journal of Manufacturing Science and Technology, Nov 1, 2021
CIRP Journal of Manufacturing Science and Technology, 2021
The International Journal of Advanced Manufacturing Technology, Oct 28, 2022
介绍了一季中稻地区罗城县龙岸镇鱼＋莲藕＋晚稻优质高效生态栽培模式，包括稻田选择与处理、莲藕播种、放水养鱼、藕田管理、晚稻育秧与抛栽、晚稻田间管理、病虫害综合防治、适时收获等内容，为该地区探索出一... more 介绍了一季中稻地区罗城县龙岸镇鱼＋莲藕＋晚稻优质高效生态栽培模式，包括稻田选择与处理、莲藕播种、放水养鱼、藕田管理、晚稻育秧与抛栽、晚稻田间管理、病虫害综合防治、适时收获等内容，为该地区探索出一条增收的优质高效生态栽培模式。
International Journal of ADVANCED AND APPLIED SCIENCES, 2017
Article history: Received 8 November 2016 Received in revised form 10 January 2017 Accepted 10 Ja... more Article history: Received 8 November 2016 Received in revised form 10 January 2017 Accepted 10 January 2017 Multi-point forming is a modern flexible manufacturing technology, which has been used in many industries successfully. In order to provide a flexible method for forming a metal, multi-point forming is used to form aluminum alloy 2024 with an initial size of 300 × 300 mm sheet. Finite elements were simulated through ABAQUS/EXPLICIT 6.14.1. Through, increasing of elastic layer hardness, the minimum required a thickness of elastic layer proliferates. Furthermore, blank holder force increment has a direct relation with the enhancement in polyurethane layer hardness. The multi-point forming experiments of aluminum sheet are done, and the comparisons of a forming process between experimental parts and simulation functions are conducted, which establish that the aluminum products have good surface accuracy and shape accuracy.
Indian Journal of Science and Technology, 2015
Modern Applied Science, 2017
The process of cold forming is considered of the most different industries and the use of such pr... more The process of cold forming is considered of the most different industries and the use of such process in the manufacture of components and small parts has expanded. Therefore, analyzing the behavior of metals in this process to identify and control durability that is the main factor of limiting process has particular importance in industrial forming processes. In this study, cold forming process of aluminum metal has been studied and its effect on its mechanical properties has been evaluated. For this purpose, first modeling piece of aluminum alloy 5083 for cold forming process is carried out and using finite element analysis, mechanical properties of considered piece during cold forming processes are investigated. The results show that by reducing friction, stress and strain during the process will reduce, thereby durability of the piece increases, or in other words, ductile fracture occurs in longer life and higher stresses. The results show that by proper forming operations, it ...
Multi-point forming is a flexible manufacturing method for 3-D surfaces. Its basic idea is to div... more Multi-point forming is a flexible manufacturing method for 3-D surfaces. Its basic idea is to divide an entire die into many punches which can be arranged and adjusted precisely. These punches constitute a " configurable, multi-point die ". Due to the deep drawing process of sheet metal forming methods most used in various industries, In this paper the procedure of multi-point forming for deep drawing of sheet metal parts has been studied and the forming mechanism proposed in the experimental and finite element simulation has been reviewed. In view of the widespread use of aluminum alloy AA2024 in the Aerospace Industry, this alloy sheet material has been used for testing and forming parts in various conditions. Common flaws with the process suggested by the conventional deep drawing process and those of this specific method potential has been identified and appropriate strategies to address these deficiencies has been provided. Ductile fracture criteria are used for predicting the tearing of the sheet. In addition, the influence of forming parameters such as the material and the thickness of the elastic layer, Sheet material, etc., on the process, defects and the final quality of the formed parts will be studied. The results show that deep drawing process with multi-point die is a flexible procedure compared with the conventional deep drawing process. This method can be formed more complex profiles with multiple pins and elastic layer while it is not possible in conventional deep drawing. During this procedure, by increasing the stiffness of the polyurethane layer, blank-holder force increases and the amount of dimples reduced. In general, in this method, with increasing of polyurethane layer stiffness, drawing depth of the work piece increases. Based on the ductile fracture criteria such as Cockcroft-Latham and Clift, the elements that related to the Clift criteria, rupture earlier.
The International Journal of Advanced Manufacturing Technology, Oct 28, 2022
Cirp Journal of Manufacturing Science and Technology, Nov 1, 2021
CIRP Journal of Manufacturing Science and Technology, 2021
The International Journal of Advanced Manufacturing Technology, Oct 28, 2022
介绍了一季中稻地区罗城县龙岸镇鱼＋莲藕＋晚稻优质高效生态栽培模式，包括稻田选择与处理、莲藕播种、放水养鱼、藕田管理、晚稻育秧与抛栽、晚稻田间管理、病虫害综合防治、适时收获等内容，为该地区探索出一... more 介绍了一季中稻地区罗城县龙岸镇鱼＋莲藕＋晚稻优质高效生态栽培模式，包括稻田选择与处理、莲藕播种、放水养鱼、藕田管理、晚稻育秧与抛栽、晚稻田间管理、病虫害综合防治、适时收获等内容，为该地区探索出一条增收的优质高效生态栽培模式。
International Journal of ADVANCED AND APPLIED SCIENCES, 2017
Article history: Received 8 November 2016 Received in revised form 10 January 2017 Accepted 10 Ja... more Article history: Received 8 November 2016 Received in revised form 10 January 2017 Accepted 10 January 2017 Multi-point forming is a modern flexible manufacturing technology, which has been used in many industries successfully. In order to provide a flexible method for forming a metal, multi-point forming is used to form aluminum alloy 2024 with an initial size of 300 × 300 mm sheet. Finite elements were simulated through ABAQUS/EXPLICIT 6.14.1. Through, increasing of elastic layer hardness, the minimum required a thickness of elastic layer proliferates. Furthermore, blank holder force increment has a direct relation with the enhancement in polyurethane layer hardness. The multi-point forming experiments of aluminum sheet are done, and the comparisons of a forming process between experimental parts and simulation functions are conducted, which establish that the aluminum products have good surface accuracy and shape accuracy.
Indian Journal of Science and Technology, 2015
Modern Applied Science, 2017
The process of cold forming is considered of the most different industries and the use of such pr... more The process of cold forming is considered of the most different industries and the use of such process in the manufacture of components and small parts has expanded. Therefore, analyzing the behavior of metals in this process to identify and control durability that is the main factor of limiting process has particular importance in industrial forming processes. In this study, cold forming process of aluminum metal has been studied and its effect on its mechanical properties has been evaluated. For this purpose, first modeling piece of aluminum alloy 5083 for cold forming process is carried out and using finite element analysis, mechanical properties of considered piece during cold forming processes are investigated. The results show that by reducing friction, stress and strain during the process will reduce, thereby durability of the piece increases, or in other words, ductile fracture occurs in longer life and higher stresses. The results show that by proper forming operations, it ...
Multi-point forming is a flexible manufacturing method for 3-D surfaces. Its basic idea is to div... more Multi-point forming is a flexible manufacturing method for 3-D surfaces. Its basic idea is to divide an entire die into many punches which can be arranged and adjusted precisely. These punches constitute a " configurable, multi-point die ". Due to the deep drawing process of sheet metal forming methods most used in various industries, In this paper the procedure of multi-point forming for deep drawing of sheet metal parts has been studied and the forming mechanism proposed in the experimental and finite element simulation has been reviewed. In view of the widespread use of aluminum alloy AA2024 in the Aerospace Industry, this alloy sheet material has been used for testing and forming parts in various conditions. Common flaws with the process suggested by the conventional deep drawing process and those of this specific method potential has been identified and appropriate strategies to address these deficiencies has been provided. Ductile fracture criteria are used for predicting the tearing of the sheet. In addition, the influence of forming parameters such as the material and the thickness of the elastic layer, Sheet material, etc., on the process, defects and the final quality of the formed parts will be studied. The results show that deep drawing process with multi-point die is a flexible procedure compared with the conventional deep drawing process. This method can be formed more complex profiles with multiple pins and elastic layer while it is not possible in conventional deep drawing. During this procedure, by increasing the stiffness of the polyurethane layer, blank-holder force increases and the amount of dimples reduced. In general, in this method, with increasing of polyurethane layer stiffness, drawing depth of the work piece increases. Based on the ductile fracture criteria such as Cockcroft-Latham and Clift, the elements that related to the Clift criteria, rupture earlier.