نتایج جستجو برای: metal injection molding

تعداد نتایج: 355740  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی مکانیک 1384

موفقیت در تولید قطعات پیچیده پلیمری از بزرگترین مسائلی است که امروزه با آن روبرو هستیم. با بررسی پیشرفت تکنولوژی پلاستیک در دنیای امروزه، ساخت قالبهای پیچیده ،زمان، هزینه و ریسکهای که در این راه گذاشته می شود بیشتر به اهمیت و حساسیت تولیدمواد پلیمری پی خواهیم برد یکی از مشکلات اساسی فرایند تزریق پلاستیک بحث انقباض قطعه تزریق شده می باشد.این پارامترمهم از ابتدای طراحی قالب تاشروع فرایندتزریق وخ...

2007
A. Banerjee X. Li G. Fowler Ashis Gopal Banerjee Xuejun Li Greg Fowler Satyandra K. Gupta

The presence of an already molded component during the second and subsequent molding stages makes multi-material injection molding different from traditional injection molding process. Therefore, designing multi-material molded objects requires addressing many additional manufacturability considerations. In this paper, we first present an approach to systematically identifying potential manufac...

2014
Jafar Gharechahi Nafiseh Asadzadeh Foad Shahabian Maryam Gharechahi

OBJECTIVE Acrylic resin denture bases undergo dimensional changes during polymerization. Injection molding techniques are reported to reduce these changes and thereby improve physical properties of denture bases. The aim of this study was to compare dimensional changes of specimens processed by conventional and injection-molding techniques. MATERIALS AND METHODS SR-Ivocap Triplex Hot resin wa...

2015
Ana Elduque Carlos Javierre Daniel Elduque

During the last decades, society’s concern for the environment has increased. Specific tools like the Life Cycle Assessment (LCA), and software and databases to apply this method have been developed to calculate the environmental burden of products or processes. Calculating the environmental impact of plastic products is relevant as the global plastics production rose to 288 million tons in 201...

Journal: :Journal of the Japan Society of Powder and Powder Metallurgy 1997

Journal: :Precision Engineering-journal of The International Societies for Precision Engineering and Nanotechnology 2021

Injection molded direct joining (IMDJ) is one type of metal-plastic methods. IMDJ first treats the metal surface and then injects melted polymer onto via injection molding technology. method excellently suitable for a mass production environment technology characteristics high-speed production. However, factors limiting application its low strength. In this study, we improved performance by mix...

Journal: :Journal of the Japan Society of Powder and Powder Metallurgy 2000

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