Study On Machinability Of Aluminum-Silicon Alloy

Silicon-aluminum alloy is extensively applied to engine manufacture inairplane,car,tank and ship etc, because the advantage of silicon-aluminum alloy(low density, wear-resisting, large heat conductivity, corrosion resisting,no spark in collision, good absorbability about impact, non-magnetism, practicalnon-toxicity, convenience for recycle etc)is outstanding. The mechanicalperformance and serviceability of silicon-aluminum alloy are improved along withrise of properties of silicon, at the same time the machinability ofsilicon-aluminum alloy is worse. Whether silicon-aluminum alloy is applied tomass production or not, this,to a great extent, depends on it's machinability.So it is of great practical significance to study on the machinability ofsilicon-aluminum alloy.This thesis, which is based on extensive experience researches with carbidecutting tool and polycrystalline diamond cutting tool, overall completelystudies the machinability of silicon-aluminum alloy. The law of influence ofvarious cutting factors(there elements of cutting regimes,angles of cuttingtool, cutting tool materials, work materials, cutting fluids) on cuttingphysical phenomena including cutting force,cutting temperature,tool life,surface roughness ,build-up edges and adhesive welded particles etc is analysed.The empirical formula of cutting force,cutting temperature,tool life are got.The degree of influence of main factors(there elements of cutting regimes,angles of cutting tool) on cutting force is pointed out. Moreover this paperput forward measure to improve the machinability of silicon-aluminum alloy.