am doing a GNVQ for advanced engineering and i have been given an
> assignment about sparkplugs. One of the questions is.
> How would you suggest manufacturing the sparkplug body shell for
> production volumes 10 and 10 million per year.
> I think that the methord for producing 10 million body shells is the
> methord of using hexagonal bar on automatic lathes. And for produing 10
> would be using cold forming.I do not know a lot about these prosses
> though could you please send me information that you think would help me
> with my assignment, it would be much appreciated.