مهندسی ساخت و تولید ایران

مهندسی ساخت و تولید ایران

تاثیر پوشش دهی آستر چدنی بر ایجاد پیوند با بدنه آلومینیومی با استفاده از فرایند ‌آلفین

نوع مقاله : مقاله پژوهشی

نویسندگان
1 دانشجوی کارشناسی ارشد، گروه مهندسی مکانیک، دانشگاه سمنان، سمنان، ایران
2 عضو هیئت‌علمی، گروه مهندسی مکانیک، دانشگاه سمنان، سمنان، ایران
3 دانشجوی دکتری، گروه مهندسی مکانیک، دانشگاه سمنان، سمنان، ایران
4 دانشجوی دکتری، گروه مهندسی مواد، دانشگاه علم و صنعت ایران، تهران، ایران
چکیده
بدنه موتور با استوانه چدنی یکپارچه یک طرح کارآمد و مفید در کاهش وزن موتور، کاهش زمان و هزینه ماشین‌کاری و رفع آلاینده‌های ناشی از به­کارگیری چدن است. با الگو برداری از فرایند آلفین که در تولید پیستون با رینگ چدنی یک‌پارچه به کار می‌رود، پژوهشی در ارتباط با استحکام پیوند بدنه آلومینیومی و استوانه چدنی با سطح خارجی متخلخل انجام شد، با توجه به این فرایند برای ایجاد پیوند بین دو جنس متفاوت در ریخته‌گری مرکبِ قطعه چدنی و بدنه آلومینیومی باید بهینه‌ترین حالت پارامترهای فرایند تولید مانند دمای حمام مذاب و زمان غوطه‌وری مناسب و ترکیبات عناصر حمام مذاب اتخاذ شود تا پیوندی مطمئن ایجاد گردد. از دیگر عوامل تاثیرگذار در برقراری این پیوند پوشش موجود بر‌ روی قطعه چدنی قبل از غوطه‌وری در مذاب آلومینیوم می‌باشد تا برقراری پیوند متالورژیکی و مکانیکی را تسهیل کند. در این مقاله تاثیر پوشش مس به روش الکتروپلیتینگ و پوشش فلاکس بر روی استوانه چدنی با انجام تست کشش بر روی نمونه بررسی شده است. نتایج حاکی از استحکام پیوند بالاتر بین استوانه چدنی و بدنه آلومینیومی در نمونه استوانه چدنی پوشش داده شده با عنصر مس به روش الکتروپلیتینگ می‌باشد.
کلیدواژه‌ها

عنوان مقاله English

The effect of pre-coating porous surface cast iron cylinder of ALFIN process to create bonding with aluminum cylinder block

نویسندگان English

Sajad Motalebi 1
Alireza Hajialimohammadi 2
Mohamad Kamyab 3
Mahdi Mirzaei 4
1 MSc Student, Department of Mechanical Engineering, Semnan University, Semnan, Iran
2 Faculty Member, Department of Mechanical Engineering, Semnan University, Semnan, Iran
3 PhD Candidate, Department of Mechanical Engineering, Semnan University, Semnan, Iran
4 PhD Candidate, Department of Materials Engineering, Iran University of Science and Technology, Tehran, Iran
چکیده English

The cylinder block with an integrated cast iron cylinder is an efficient and useful design in reducing the weight of the engine, reducing the time and cost of machining and removing the pollutants caused by using cast iron. By modeling the Alfin process, which is used in the production of a piston with an integrated cast iron ring, a research was conducted on the strength of the bond between the aluminum cylinder block and the cast iron cylinder with a porous outer surface, considering this process to create a bond between two different materials in composite casting. The cast iron part and the aluminum cylinder block should be adopted in the most optimal state of the parameters of the production process, such as the temperature of the molten bath and the appropriate immersion time, and the composition of the elements of the molten bath, in order to create a reliable bond. Another factor influencing the establishment of this bond is the coating on the cast iron part before immersion in the melt. It is aluminum to facilitate metallurgical and mechanical bonding. In this article, the effect of copper coating by electroplating method and flux coating on cast iron cylinder has been investigated by performing a tensile test on the sample. The results indicate a higher bond strength between the cast iron cylinder and the aluminum cylinder block in the sample of the cast iron cylinder coated with copper element by electroplating method.

کلیدواژه‌ها English

Alfin Process
Copper Coating
Flux
Composite Casting
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