The effect of friction surfacing parameters on surface quality and microstructure of Al-13°/oSi Cladding layer on pure Aluminium

In this investigation, the Al-13% Si was clad by friction surfacing on the pure aluminium. The frictionsurfacing by consumable rods in different conditions such as rotational speed (W), linear velocity (V) and pressureforce (F) was carried out. The visual test and macrograph examinations results of different samples showed that bydecreasing of welding parameter ratio (Y/W) and increasing of pressure force (F), depth of tpenetration was increased.Moreover in low or high pressure force (F) and welding parameter ratio (V/W) , low surface quality of joint betweenclad layer and substrate metal was gained. The results of metallographic examinations of the accept quality jointsamples showed that by increasing of the pressure force and decreasing of the welding parameter ratio (Y /W) the sizeof Si particles in clad layer were decreased and the hardness value of clad layer were increased

کلیدواژه ها:

Aluminium ، Friction surfacing ، Cladding ، Surface quality ، Microstructure