Profilli ovalamanın analizi

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Date

2009

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Research Projects

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Manufacturing Engineering
(2003)
Opened in 2003 with the aim to graduate experts in the field of machine-production, our Department is among the firsts in our country to offer education in English. The Manufacturing Engineering program focuses on the manufacturing technologies that shape materials from raw materials to final products by means of analytical, experimental and numerical modeling methods. First Manufacturing Engineering Program to be engineered by Müdek, our department aims to graduate creative and innovative Manufacturing Engineers that are knowledgeable in the current technology, and are able to use production resources in an effective and sustainable way that never disregards environmental facts. As the first Department to implement the Cooperative Education Program at Atılım University in coordination with institutions from the industry, the Manufacturing Engineering offers a practice-oriented approach in education with its laboratory infrastructure and research opportunities. The curriculum at our department is supported by current engineering software, and catered to creating engineers equipped to meet the needs of the production industry.

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Abstract

Tornalama ile üretilen rulman bileziklerinin ovalama ile yapılması amaçlanmaktadır. Soğuk metal şekillendirme prosesi olan profilli ovalama ile imal edilen rulmanın ömrünün daha uzun olacağı tahmin edilmektedir. Soğuk metal şekillendirme proseslerinin genel bir özelliği olarak malzeme sertliği, dinamik yüklemelere dayanımı, yüzey kalitesi daha iyi olacaktır. Bu özellikler sayesinde ömrünün uzayacağı düşünülmektedir. Soğuk şekillendirmenin nihai ürüne uygulanmaya çalışılması, basitleştirilmiş simülasyon modelleri ve üç boyutlu profilli ovalamanın simülasyonu ile yapılan deneylerin sonuçlarının karşılaştırılası çalışmalarını içermektedir. Ovalama işlemi ile profildeki kapak yuvası gibi ayrıntıların doldurulması çok zordur. Bundan dolayı profile uygun bir ön şekil verilmesi amaçlanmıştır. Tornalama ile yapılacak olan bu ön şekil, sonlu eleman analizleriyle bilgisayar ortamında denemeler yaparak, tespit edilecektir. Çalışma sonucunda soğuk ovalama ile nihai profil şeklinin verme işlemi özgün bir üretim prosesi olacaktır.
Bearing outer rings are aimed to be produced by profiled ring rolling instead of turning. Bearing rings produced by profiled ring rolling as a cold metal forming operation, is anticipated to have longer fatigue life. Material hardness, resistance to dynamic loading and surface quality are good advantages for cold formed products. These advantages shall lead to longer life for bearings. Application of cold roll forming to the final shaped product includes studies such as creation of simplified simulation models, making three dimensional simulations and experiments to verify the results. Details of the bearing ring is a challenging process to be directly filled by workpiece during rolling. Therefore, a special shaped preform is needed for each final product. This preform shape is to be manufactured by turning by shape and dimensions acquired from trials made with simulation models. Production of full profiled bearing rings will be an original production method.

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Makine Mühendisliği, Mechanical Engineering

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0

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119