Tran Duc

Do the melting under nitrogen or argon atmosphere. You can use a technology similar to argon welding.

Thank Prof. Yuri Migorod! The melting process occurs in Inert Gas, however, in the Pre-Processing, how can I protect the copper powder from oxidation whenever mixing and put it in the SLM machine?

Tran Duc

You must write the name of the consultant as requested by RG. Otherwise, the robot does not report the question to the consultant.

It is not clear what you are mixing with copper powder. You can keep your powder in hexane or petroleum ether. Mix there. Transfer (pour) the dispersion into the SLM machine. Evaporate petroleum ether and then melt.

Yuri Mirgorod

Thank you a lot, Professor!

Dear Tran Duc please note that there are two closely related RG questions which have been asked earlier:

How can I protect copper from oxidation when melting copper powder?

https://www.researchgate.net/post/How_can_I_protect_copper_from_oxidation_when_melting_copper_powder

(6 answers)

and

How to prevent oxidation of copper during melting ?

https://www.researchgate.net/post/How_to_prevent_oxidation_of_copper_during_melting

(4 answers)

It might be worth having a look at the answers given to these questions.

Dear Prof.Frank T. Edelmann

Thank for your suggest answer.