مطالعه تأثیر پارامترهای فرآیندی و بهینه‌سازی زاویه خم در خم‌کاری با لیزر به روش سطح پاسخ

نوع مقاله : مقاله پژوهشی

نویسندگان

دانشکده مهندسی مکانیک، دانشگاه صنعتی نوشیروانی بابل

چکیده

فرآیند شکل‌دهی با لیزر، یک موضوع تحقیقاتی و صنعتی نسبتاً جدید است. مواد استفاده‌شده در پژوهش‌های انجام شده از سوی محققان، نوعاً تیتانیم، منیزیم، فولاد و آلیاژهای آن بوده است. آلیاژهای آلومینیوم به دلیل داشتن انعکاس سطحی بالای پرتو لیزر و ضریب جذب پایین‌، کمتر مورد مطالعه قرار گرفته‌اند. در این تحقیق، ابتدا نحوه و میزان ﺗﺄﺛﻴﺮ پارامترهای مختلف فرآیندی بر روی زاویه خم در فرآیند خم‌کاری با لیزر ورق آلومینیوم 6061 به روش تجربی و شبیه‌سازی اجزای محدود بررسی شد. سپس، به‌منظور دست‌یابی به حداکثر زاویه خم، تمام پارامترها به روش سطح پاسخ (RSM) بهینه‌سازی شدند. علاوه بر این، تکرارپذیری فرآیند به همراه صحت و اعتبار شبیه‌سازی با اندازه‌گیری دقیق زاویه خم با انجام آزمایش تجربی مورد بررسی قرار گرفت. نتایج نشان داده است که ضخامت ورق بیشترین تأثیر را بر زاویه خم دارد، به‌طوری‌که با افزایشmm 1 در ضخامت ورق، مقدار زاویه خم 77% کاهش می‌یابد. همچنین با بهینه‌سازی پارامترها، حداکثر زاویه خم 911/4 درجه به دست آمد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Study of the Effect of Process Parameters and Optimization of Bending Angle in Laser Bending

نویسندگان [English]

  • Aliakbar Asgharpour
  • Mohammad Bakhshi
  • Hamid Gorji
Faculty of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, Iran
چکیده [English]

The laser forming process is an emerging area of research and industry, primarily focused on materials like titanium, magnesium, steel, and their alloys. However, aluminum alloys have received less attention due to challenges related to surface reflection and low absorption coefficients.

In this research, the effect of different process parameters on bending angle in the laser bending of Al 6061 sheets was investigated by experiments and finite element simulation. The parameters were optimized by Response Surface Method (RSM) to achieve the maximum bending angle. In addition, the reproducibility of the process, as well as the accuracy and validation of the simulation, were examined by conducting experiments that involved accurate measurement of the bending angle. The results revealed that the sheet thickness had the most significant effect on the bending angle. Specifically, with an increase of 1 mm in the sheet thickness, the bending angle decreased by 77%. Additionally, through process parameter optimization, the maximum bending angle achieved was 4.911 degrees.

کلیدواژه‌ها [English]

  • Laser bending
  • Optimization
  • Bending angle
  • Finite Element simulation (FEM)
  • Response Surface Method (RSM)

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