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자동차용 클러치 마찰재의 미끄럼마찰마모특성 해석(제1보 마모특성)
이한영(Han-Young Lee),김근영(Geon-Young Kim),허만대(Man-Dae Hur) 한국트라이볼로지학회 2004 한국윤활학회지(윤활학회지) Vol.20 No.6
The wear properties of clutch facing materials with two different copper amounts were evaluated against the fly-wheel materials used in clutch system, such as gray cast iron and spheroidal graphite cast iron. Sliding wear tests were carried out for four different combinations with these clutch facing materials and flywheel materials at different speeds and applied loads. Results showed that the clutch facing material contained a higher copper amount had the better wear resistance. And using the gray cast iron as the counter material, clutch facing material resulted in the much lower wear rate, regardless of the copper amount. It is obvious that the wear properties of clutch facing material are influenced from the thermal conductivities of the clutch facing material and the counter material.
자동차용 클러치 마찰재의 미끄럼마찰마모특성 해석 (제2보 마찰특성)
이한영(Han-young Lee),김근영(Geon-young Kim),허만대(Man-Dae Hur) 한국트라이볼로지학회 2005 한국윤활학회지(윤활학회지) Vol.21 No.2
In previous paper, the wear properties of clutch facing materials with two different copper amounts against fly-wheel materials used in the clutch system were investigated by sliding wear tests at different applied loads and speeds. This paper have been aimed to evaluate the friction properties for clutch facing materials at the same test conditions as the previous paper. The experimental results indicated that the friction properties of clutch facing materials are influenced from the thermal conductivities of the clutch facing material and the counter material. The clutch facing material with the lower thermal conductivity and the fly-wheel material with the higher thermal conductivity showed the low and stable friction coefficient in the range of high sliding speed. This appears to be due to the formation of a film on the surface of the fly-wheel material.