کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
795805 1466730 2016 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Single-step manufacturing of curved polypropylene composites using a unique sheet consolidation method
ترجمه فارسی عنوان
تک مرحله ساخت کامپوزیت های پلی پروپیلن منحنی با استفاده از روش انحلال ورق منحصر به فرد
کلمات کلیدی
فشرده سازی خلاء، کامپوزیت های گرمانرم منحنی، پلی پروپیلن، کتان شکل پذیری، فیبرهای بلند
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
چکیده انگلیسی

Many techniques have been developed over the past few decades to manufacture curved fibre reinforced thermoplastic composites. Long-fibre composite parts have been mostly manufactured by either compression moulding or thermoforming in two or more steps. No effort has been put into single-step manufacturing of long fibre curved thermoplastic composite parts. This work develops a manufacturing plan that has the ability to produce fairly strong curved thermoplastic composites in a single step. The production of composites according to this plan is expected to be significantly cheaper than the composites produced by compression moulding or thermoforming. In this research, curved composites were manufactured from flax reinforcements and polypropylene sheets using a unique manufacturing cycle, where the composites were formed and consolidated simultaneously. The optimum processing parameters and the fibre volume fraction were found to manufacture curved flax reinforced polypropylene composites with acceptable tensile and shear strengths. An experimental setup was used to monitor and record the applied vacuum pressure and temperature during the experiments. Shear and tensile strength of the manufactured composites was found. The consolidation quality of the manufactured composites was assessed by examining the composite specimens’ cross-sections under an optical microscope. The results showed that the tensile and shear strengths of the manufactured composites were dependent on the fibre volume fraction, transverse permeability of the fibre reinforcement and also the magnitude and method of application of compaction pressure. There were optimum fibre volume fractions with respect to tensile and shear strengths for each of the three fibre reinforcements used in this research. The shear and tensile strengths of the composites produced in this research are comparable to compression moulded or thermoformed parts.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 237, November 2016, Pages 96–112
نویسندگان
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