Kompozit Fren Balatasında Bakır Oranının Frenleme Karakteristiğine Etkisi

Taşıtların durması veya yavaşlatılması için fren sistemi kullanılmaktadır. Fren sisteminde yer alan balatalar diskesürtünerek aracın durmasını veya yavaşlamasını sağlamaktadır. Balatalar birden fazla malzemenin karışımındanoluşmaktadır. Bakır, fren balatalarında metalik sürtünme malzemesi olarak kullanılmaktadır. Fren balatalarındakullanılan bakır termal iletkenliğinin yanında iyi bir fren performansı da sağlamaktadır. Bu çalışmada, frenbalatalarında kullanılan bakırın frenleme performansına etkisi araştırılmıştır. Hazırlanan balata karışımı içerisine%5, %10 ve %15 oranlarında bakır ilave edilerek üç farklı balata üretilmiştir. Balata numunelerinin sürtünmekatsayısı, aşınma, yoğunluk, sertlik gibi fiziksel ve mekanik özellikleri belirlenmiştir. Enerji DağılımSpektrometresi (EDS) ve Taramalı Elektron Mikroskobu (SEM) ile morfolojik özellikleri incelenmiştir. Bakıroranı arttıkça balata performansının iyileştiği görülmüştür.

The Effect of Copper Ratio on Braking Characteristics of Composite Brake Pads

The brake system is used to stop or slow down the vehicles. The brake linings in the brake system rub against the disc and allow the vehicle to stop or slow down. The brake linings consist of mixture of more than one material. Copper is used as metallic friction material in brake pads. The copper used in the brake linings provides good braking performance as well as thermal conductivity. In this study, the effect to braking performance of copper is used in the brake pad was investigated. Three different brake lining were produced by adding 5%, 10% and 15% copper to the prepared brake lining mix. The physical and mechanical properties such as friction coefficient, wear, density and hardness of brake lining samples were determined. Morphological properties were examined by Energy-Dispersive X-Ray Spectroscopy (EDS) and Scanning Electron Microscopy (SEM). It has been observed that the performance of brake lining has improved as the copper ratio increases.

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