نتایج جستجو برای: roll forming process
تعداد نتایج: 1418169 فیلتر نتایج به سال:
Abstract The uniform thickness hollow axle is one of the lightest weight axles in high-speed rail industry. It can effectively reduce unsprung mass and further improve train speed. Therefore, due to its importance significance, it crucial research develop axle. To understand microstructural evolution during three-roll skew-rolling (TRSR) forming, 30CrMoA alloy steel was used this study. A const...
A flexible pH sensor based on using iridium oxide (IrOx) as the sensing film was developed by roll-to-roll (R2R) process. The inert and biocompatible properties of IrOx make it a desired metal for pH-sensing applications. substrates being continuously processed R2R technique provides advantages scalability, reconfigurability, resiliency, on-demand manufacturing, high throughput, without need va...
Accumulative roll bonding (ARB) imposes severe plastic strain on materials without changing the specimen dimensions. ARB process is mostly appropriate for practical applications because it can be performed readily by the conventional rolling process. An Al-2wt%Cu alloy was subjected to ARB process up to a strain of 4.8. Stacking of materials and conventional roll-bonding are repeated in the pro...
The transverse bowing greatly affects the accuracy of roll-forming asymmetric corrugated channels (ACC). In order to control this defect, paper first elucidates its mechanism production. Then, is explored by finite element method (FEM) using ABAQUS 2016 software and effects forming parameters are analyzed. Also, a linear regression model built Minitab 19 evaluate their effects, which standard v...
پایان نامه حاضر به طراحی قالبهای (غلتکهای) شکل دهی غلتکی سرد cold roll forming لوله با درزجوش طولی به کمک کامپیوتر می پردازد. با یک بررسی مفصل، پیچیدگی و ناشناخته بودن فرایند شکل دهی غلتکی سرد تایید شده است . علی رغم گسترش آن هنوز این فرایند بطورکامل اتوماتیک نشده و اصول و قوانین کمی برای تنظیم و آماده نمودن دستگاههای آن بکار می رود. درابتدا مطالعات و بررسیهای فراوانی بمنظور شناخت و درک این فرا...
In recent years, in order to reducing die design and manufacturing costs, Multi point forming technique has gained an increasing interest because of its high flexibility. In this process, the conventional fixed shape solid die sets are replaced with a pair of opposite matrices of controllable elements. In this paper, the fundamental principles of multi-point forming was described and the possib...
Springback in metal forming process is tendency to partially return to its original shape because of the elastic recovery of the material upon release of the forming force. In order to increase accuracy of dimension in products, it is desirable to eliminate or reduce this phenomenon. It is the main objective of present work to study the amount of springback generated during deep drawing forming...
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