نتایج جستجو برای: warm hydroforming

تعداد نتایج: 28944  

Journal: :Metals 2021

Hydroforming processes of metal tubes and sheets are being widely applied in manufacturing because the increasing demand for lightweight parts sectors such as automobile, aerospace, ship-building industries [...]

Journal: :journal of modern processes in manufacturing and production 2015
javad shahbazi karami gholamhasan payganeh hamid rakhodaei

this paper presents a control model of the hydroforming and the dual hydroforming process of atube. the theoretical part includes calculations to measure the change in tube thickness through thedeveloped process. the hydroforming and the dual hydroforming processes are simulated in thesolidsimulation software and the static and the dynamic simulations are modeled. theobtained results for the t-...

Journal: :نشریه دانشکده فنی 0
کیوان حسینی صفری دانشگاه تهران محمود موسوی مشهدی دانشگاه تهران

determination of the optimum loading path (internal pressure- axial feeding) to restrict the bursting, buckling and wrinkling through tube hydroforming process is necessary to produce an acceptable tube. in this paper, the wrinkling and fracture criteria are implemented to an finite element code devoted to the simulation of tube hydroforming processes. using the ansys parametric design language...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده مهندسی مکانیک 1381

در این پایان نامه در ابتدا دلایل شکل گیری آلاینده ها در شرایط cold start و warm up و راهکارهای کاهش آنها ارائه می شود. در ادامه، بهینه سازی فرایند شکل گیری مخلوط هوا و سوخت از طریق کنترل دقیق نسبت هوا به سوخت بعنوان یکی از بهترین راهکارهای عملی کاهش آلاینده ها در شرایط cold start و warm up با جزئیات کامل مورد بررسی قرار می گیرد. مدل بدست آمده (برای موتور پیکان انژکتور)، شبیه سازی می شود و نتایج...

Keyvan Hosseini Safari Mahmoud Mousavi Mashhadi

Determination of the optimum loading path (internal pressure- axial feeding) to restrict the Bursting, buckling and wrinkling through tube hydroforming process is necessary to produce an acceptable tube. In this paper, the wrinkling and fracture criteria are implemented to an finite element code devoted to the simulation of tube hydroforming processes. Using the ANSYS parametric design language...

Journal: :AIP Advances 2022

Hydroforming patch technology for damaged screen pipes is designed based on tube hydroforming technology, and the methods determining forming pressure range defects are selected according to process. The model established technical demand parameters pipe repair. From mechanical properties of material digital–analog comparison analysis formability, it found that determiners formability (such as ...

Journal: :Physical Review Special Topics - Accelerators and Beams 2015

Journal: :international journal of advanced design and manufacturing technology 0
mohsen lohmousavi k.i mori mohamad bakhshi mahmoud farzin sayed jamal hoseinipour

in recent years, the hydroforming due to reduction in weight and increase in strength of automotive parts has attracted attention of the automotive industry. thus, the knowledge of the process to produce parts with desired quality and accuracy has been growing. one of the effective methods in improving the formability in the hydroforming is known as pulsating hydroforming. however, the reason o...

Journal: :IJMTM 2008
Farhang Pourboghrat Yabo Guan Frederic Barlat

Although very accurate in representing the material anisotropy, finite element analysis based on direct use of a polycrystal model is CPU-intensive (Guan et al., 2006a). In the present study, this Taylor-type polycrystalline model was firstly used to predict the anisotropy coefficients of Yld96 yield function. Then this phenomenological anisotropic yield function was implemented into ABAQUS/Sta...

Journal: :ACTA Universitatis Cibiniensis 2016

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