I needed to post this info Honored Posters, for clarification :glasses7:
* Hypoeutectic ----up to 12% silicon
*Eutectic ----12%-15% silicon
*Hypereutectic ----15%-18% silicon
The Casting Process---Eutectic, is the point that aluminum becomes saturated with the alloying material,in the above inferences Silicon.
Silicon alloys do have some inherent virtues---
1) easy to machine
2)cheap raw material
3)stable 'bloom' in medium duty heat applications
4)almost 'immune' to deformation in long term production runs
Silicon alloys do have some inherent vices though---
1)toggle switch failure at > 825* F sustained temp
2) shelf life
3) crystal lattice structure tends to de -laminate without heat
4) varied casting processes produce finished component weights
that vary as much as !!! 18-23% !!! after machining.
Just an F.Y.I. Honored Posters, an Pleasure as always
* Hypoeutectic ----up to 12% silicon
*Eutectic ----12%-15% silicon
*Hypereutectic ----15%-18% silicon
The Casting Process---Eutectic, is the point that aluminum becomes saturated with the alloying material,in the above inferences Silicon.
Silicon alloys do have some inherent virtues---
1) easy to machine
2)cheap raw material
3)stable 'bloom' in medium duty heat applications
4)almost 'immune' to deformation in long term production runs
Silicon alloys do have some inherent vices though---
1)toggle switch failure at > 825* F sustained temp
2) shelf life
3) crystal lattice structure tends to de -laminate without heat
4) varied casting processes produce finished component weights
that vary as much as !!! 18-23% !!! after machining.
Just an F.Y.I. Honored Posters, an Pleasure as always
