Baygraver
Member
I have been using some liner gravers from EC Muller and am beginning to think they come in an annealed (soft) state. This is because they seem to lose their edge rather quickly in soft metals, like copper and brass. I’ve emailed them via their website, but so far no answer.
I remember some time ago I hardened and then tempered (I thought) some of these gravers and they still had issues. I thought perhaps I didn’t harden them correctly, as they don’t come with any instructions and distributors don’t seem to really know.
It seems that gravers from GRS are ready to go when they arrive (annealed, hardened and tempered) but I’m not actually sure about this either. Also, GRS doesn’t make their own liner gravers to my knowledge.
It seems that the wide variety of steels used by manufacturers have their wide variety of requirements for how to properly prepare these gravers, eg. some are hardened to cherry-red, others need higher temperatures and/or can’t be reheated at all. We consumers seem to be left with a certain amount of trial and error, especially the latter.
Can anybody help me out with this?
Regards, Jim
I remember some time ago I hardened and then tempered (I thought) some of these gravers and they still had issues. I thought perhaps I didn’t harden them correctly, as they don’t come with any instructions and distributors don’t seem to really know.
It seems that gravers from GRS are ready to go when they arrive (annealed, hardened and tempered) but I’m not actually sure about this either. Also, GRS doesn’t make their own liner gravers to my knowledge.
It seems that the wide variety of steels used by manufacturers have their wide variety of requirements for how to properly prepare these gravers, eg. some are hardened to cherry-red, others need higher temperatures and/or can’t be reheated at all. We consumers seem to be left with a certain amount of trial and error, especially the latter.
Can anybody help me out with this?
Regards, Jim