نتایج جستجو برای: forming fluid

تعداد نتایج: 332083  

Journal: :international journal of advanced design and manufacturing technology 0
behrooz zareh m.sc, department of mechanical engineering, babol noshirvani university of technology, shariati street, babol, mazandran, p. o. box 484, iran. abdolhamid gorji assistant professor, department of mechanical engineering, babol noshirvani university of technology, babol, iran mohammad bakhshi professor, department of mechanical engineering, babol noshirvani university of technology, babol, iran salman nourouzi assistant professor, department of mechanical engineering, babol noshirvani university of technology, babol, iran

there are many parameters that affect the sheet hydroforming process such as fluid pressure, material properties, interfacial friction between blank and tool surfaces, etc. in this paper, a fem-based taguchi method is used to determine the effects of forming parameters on the quality of part formability in the process of hydrodynamic deep drawing assisted by radial pressure. four important form...

فلاحتی, سمیه, ترابی, قدرت, خلیلی, محمود, سعیدی, معصومه , مکی زاده, محمد علی , نقره ئیان, موسی,

Two types of rodingitization (static and dynamic) are observed in the rodingites of the ophiolite north of Nain. Two stages have been occurred in the formation of static rodingites. At the initial stage, epidote, prehnite and hydrogrossular have crystallized respectively at the expense of plagioclase, with the increase of Calcium content rodingite forming fluid. In the advanced stage, xonotlite...

Journal: :international journal of advanced design and manufacturing technology 0
hossein ghazavi nosratollah solhjoei

hydro-forming is a fabrication process that uses a fluid medium to form a piece by using high internal pressure. in tube hydro-forming, a tubular blank is placed between two dies, sealed and pressurized water injected, deforming the tube walls in the cavity form of the dies. exist several typical hydro-forming processes such as t- shapes, cross-shapes and y- shapes. successful hydro-forming dep...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده مهندسی مکانیک 1386

با توجه به تحقیقات وسیعی که در دنیا بر روی انواع روش های شکل دهی انفجاری انجام شده است و وجود مزایا و اهمیت به سزای این روش در تولید قطعات مهندسی و امکان تولید قطعات با اشکال پیچیده و قابلیت بارگذاری آنی و لحظه ای (در زمانی در حدود کسری از ثانیه)، این روش ها از اهمیت بالایی برخوردار شده اند. کارهای انجام شده در مورد شکل دهی انفجاری در ایران بیشتر بر اساس شکل دهی با مواد منفجره شیمیایی بوده و در...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم زمین 1386

چکیده ندارد.

Journal: :علوم کاربردی و محاسباتی در مکانیک 0
عماد رحیمی حسن مسلمی نائینی حامد دیلمی عضدی سیامک مزدک محمدمهدی کسائی

use of tailor-welded blanks (twbs) in production has significant advantages such as weight and cost reduction. however, their application requires processes that increase their poor formability in comparison to base materials. one of these procedures is the use of fluid pressure in sheet metal forming. in this paper hydro-mechanical deep drawing process of tailor-welded low carbon steel (st12) ...

In this study, hot metal gas forming process of AA6063aluminumtubeis studied with a focus on heat transfer of both fluid and solid phases numerically. An experimental study is simultaneously conducted to validate the numerical method. Some of the most important outputs of the present study, are velocity distribution of fluid inside the tube as well as the fluid in the gap between tube and matri...

Journal: :علوم کاربردی و محاسباتی در مکانیک 0
بهروز زارع محمد بخشی عبدالحمید گرجی سلمان نوروزی

the aim of this paper is to develop a systematic method to analyze the effects of forming parameters on the quality of part formability and determine the optimal combination of the forming parameters for the sheet hydroforming process. in this paper, the effects of four important process parameters namely fluid pressure, friction coefficient at blank/punch interface, gap between die rim block a...

Journal: :Polymer Engineering and Science 2022

The authors present a thermally and dynamically coupled fluid–structure-interaction (FSI) model of thermoforming process variant along with simulation results. By purposeful arrangement the inlet nozzles, under consideration seeks to improve deformation behavior plastic sheet made polyvinyl chloride (PVC), ultimately leading more uniform wall thickness distribution. In order capture complex int...

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