Experimental Evaluation And Analysis of Coefficient of Friction For Mild Steel Under Various Lubrication Conditions
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Date
2019-08-16
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MPUT, UDAIPUR
Abstract
Friction factor play important role to study of the material flow, behaviour of material to achieve the desired product with minimum effort in processes of rolling, extrusion and forging, therefore in designing a metal-forming operation it is necessary to minimise friction between metal surfaces. Importance of this thesis work is to study and analysis coefficient of friction of mild steel under different lubrication condition employing ring compression test and FE simulation.
This study was present the ring compression test using experimental and finite element simulation. The ring compression test was universally accepted as a perfectly valid method for determine the coefficient of friction. A ring compression test was carried out to determine the coefficient of friction between the interface of the material Mild steel and lubrication conditions such as boric acid vaseline, Grease and dry condition. The geometry of specimen was modelled in ratio of 6: 3:2 with whose outer diameter 42mm, inner diameter 21mm and height 14mm.
The results showed that coefficient of friction was for dry condition 0.38, for boric acid 0.27, for vaseline 0.22 and for grease 0.15. Due to high friction in dry condition, the flow of metal inward i.e. the inner diameter of the ring was reduced but for the lubrication condition, the flow of metal outward i.e. inner diameter of the ring was increased. Results showed that coefficient of friction was an important factor in the in metal processes and it affected the deformation and surface quality of product.
The FEM simulation was simulated for the ring compression test using analysis finite element simulation software ANSYS 13.0. Ring compression test was done experimentally and the result was compared with the FEM simulation results. Further determines the hardness distribution of material after compression in radial direction using Rockwell Hardness tester.
Description
Experimental Evaluation And Analysis of Coefficient of Friction For Mild Steel Under Various Lubrication Conditions
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Citation
Kacchara N. And Saloda M.A.