نوع مقاله: مقاله پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد،دانشگاه تفرش، تفرش، ایران

2 استادیار، مهندسی مکانیک، دانشگاه تفرش، تفرش، ایران

3 استادیار،مهندسی مکانیک، دانشگاه تفرش، تفرش، ایران

چکیده

امروزه استفاده از مواد کامپوزیتی به‌ویژه در صنایع هوافضا و خودروسازی به‌طور روز افزونی در حال افزایش می‌باشد. سوراخ‌کاری فرآیند اصلی برای مونتاژ کردن اجزای کامپوزیتی است. آسیب‌های فرایند سوراخ‌کاری مانند جدایش بین لایه‌ای و ترک خوردگی ماتریس در اطراف سوراخ، در نهایت ممکن است باعث افت در استحکام باقیمانده‌ی اجزای سوراخ‌کاری شده، شود. در این مقاله اثر پارامترهای سوراخ‌کاری نظیر نرخ پیشروی، سرعت اسپیندل و قطر مته سوراخ‌کاری بر نیروی محوری و فاکتور جدایش بین لایه‌ای برای نمونه‌های کامپوزیتی با درصدهای مختلف نانو‌لوله کربنی اصلاح شده، بررسی شده است. همچنین در این تحقیق از روش تاگوچی برای طراحی آزمایش به‌منظور تجزیه و تحلیل تاثیر پارامترهای ماشین‌کاری بر نیروی محوری و فاکتور جدایش بین لایه‌ای استفاده شده است. نتایج نشان می‌دهد که با افزودن نانو لوله کربنی تا درصد مشخصی (در حدود 5/0 درصد وزنی)، نیروی محوری و جدایش بین لایه‌ای کاهش می‌یابد. همچنین با کاهش نرخ پیشروی و افزایش سرعت اسپیندل

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Experimental investigation of carbon nanotube addition on delamination induced drilling of glass-epoxy composites

نویسندگان [English]

  • Rasool Abasi 1
  • Hossein Heidary 2
  • Mohammad Hosein Pol 3

1 Department of Mechanical Engineering, Tafresh University, Tafresh, Iran

2 Department of Mechanical Engineering, Tafresh University, Tafresh, Iran

3 Department of Mechanical Engineering, Tafresh University, Tafresh, Iran

چکیده [English]

Nowadays, using composite materials has been grown increasingly especially in aerospace and automobile manufacturing. Composite drilling is the main machining process for assembling the composite components. The damages caused by drilling process, such as delamination, fiber breakage, fiber pull out and matrix cracking around the hole can decrease the residual strength of drilled components. In this paper, the effect of drilling parameters such as feed rate, spindle speed and drill diameter on the thrust force, delamination for composite specimens with different percentages of nano fibers are discussed. Taguchi method is used for Designing of Experiment to analysis effect of machining parameters (feed rate, spindle speed, drill diameter) and percentage of nano particles on the thrust force and delamination factor. The results show that by increasing carbon nano tube up to a special percentage (about 5%) delamination and thrust force decrease. Also, by decreasing feed rate and increasing spindle speed, thrust force and delamination factor decrease

 

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