aluminium casting

Using aluminium casting

Using an aluminum casting to replace an iron casting will result in component weight reducing by half. So why auto manufacturers are searching the areas where they may replace iron parts with aluminium parts. Most auto producers prefer alloys of aluminium specially the A 300 series which have a mix of silicon and a minor amount of magnesium.

Silicon material provides fluidity while casting, which allows thinner parts to be cast. The magnesium will give strength. An important feature of aluminum is that in comparison with ferrous alloys which show a unlimited fatigue strength. The fatigue strength of aluminum alloys goes down with increase in number of stress cycles this needs to be taken into account while designing its parts.