بررسی رفتار نیروی محوری و دما در فرایند سوراخ‌کاری کامپوزیت‌های شیشه/اپوکسی با و بدون انحناء

نوع مقاله : مقاله پژوهشی

نویسندگان

1 کارشناسی ارشد، دانشکده مهندسی مکانیک، دانشگاه صنعتی اراک، اراک، ایران

2 استادیار، دانشکده مهندسی مکانیک، دانشگاه صنعتی اراک، اراک، ایران

چکیده

چندلایه‌های کامپوزیتی تقویت‌شده با الیاف به دلیل نسبت استحکام به وزن بالا، سفتی بالا و عملکرد مناسب، کاربرد وسیعی در صنایع دارند. یکی از کاربرد‌های چندلایه‌های کامپوزیتی انتقال سیال به‌وسیلۀ لوله‌های کامپوزیتی می‌باشد. در این مطالعه به دلیل استفاده روزافزون از لوله‌های کامپوزیتی به بررسی و مقایسه اثر پارامترهای اصلی سوراخ‌کاری مانند سرعت پیشروی، سرعت دورانی و قطر ابزار بر روی نیروی محوری و دما در سوراخ‌کاری چندلایه‌های کامپوزیتی با انحنا پرداخته شده و با نتایج چندلایه کامپوزیتی بدون انحنا مقایسه شده است. بدین منظور ابتدا چندلایه‌های کامپوزیتی الیاف شیشه/اپوکسی با استفاده از روش لایه‌چینی دستی ساخته شدند. نتایج این بررسی نشان می‌دهد که به‌طورکلی در تمامی قطرها و سرعت‌های پیشروی نیروی محوری در هر دو چندلایه کامپوزیتی با افزایش سرعت دورانی کاهش می‌یابد اما تأثیر این پارامتر بر روی دما وابسته به انحنای چندلایه کامپوزیتی می‌باشد. همچنین افزایش نرخ پیشروی در هر دو آزمایش باعث افزایش نیروی محوری و کاهش دما می‌شود و این موضوع به ترتیب به دلیل افزایش فشار ابزار بر روی چندلایه کامپوزیتی و کاهش زمان درگیری ابزار با چندلایه‌ کامپوزیتی می‌باشد. در پایان به‌طورکلی نیروی محوری و دما در پارامترهای سوراخ‌کاری یکسان در چندلایه کامپوزیتی با انحنا کمتر از چندلایه کامپوزیتی بدون انحنا است.

کلیدواژه‌ها

عنوان مقاله [English]

Investigating the behavior of axial force and temperature in the drilling process of glass/epoxy composites with and without curvature

نویسندگان [English]

  • Arman Taheri 1
  • Mazaher Salamat-talab 2
  • Vahid Tahmasbi 2
1 Department of Mechanical Engineering, Arak University of Technology, Arak, Iran
2 Department of Mechanical Engineering, Arak University of Technology, Arak, Iran
چکیده [English]

Fiber-reinforced composites are widely used in industries due to their high strength-to-weight ratio, high stiffness, and proper performance. One of the applications of composite laminates is fluid transmission by means of composite pipes. In this study, due to the increasing use of composite pipes, the effect of the main drilling parameters such as feed rate, rotational speed and tool diameter on the thrust force and temperature in the drilling of composite laminates with curvature was investigated and the results compared with one of composite laminates without curvature. To this end, glass fiber/epoxy composite laminates were manufactured by hand lay-up method. The experimental results show that, in general, in all diameters and feed rates, the thrust force in both composite laminates decrease with increasing rotational speed, but the effect of this parameter on temperature depends on the curvature of the composite laminates. Also, increasing the feed rate in both laminates increases the thrust force and decreases the temperature, and this is due to the increase of the pressure of the tool on the composite laminates and the reduction of the engagement time of the tool with the composite laminates, respectively. Finally, in general, the axial force and temperature in the same drilling parameters in the composite laminates with curvature is lower than that one without curvature.

کلیدواژه‌ها [English]

  • Glass/Epoxy Composites
  • Drilling of Laminated Composites
  • Thrust Force
  • Response Surface Method

مراجع

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