SLM machines typically use an Argon gas chamber. DED machines use an Argon gas shield.
> It’s more typical to print copper alloys than pure copper.
In the context of modern SLM, it depends on your definition of "pure" and "alloy". During the process, a bit of resin to is mixed into the powder and heat treated in a final step to get to 99.9% pure copper.
edit: Just fixed up my knowledge. Indeed alloys are typically used (99% copper with things like Chrome added on depending on use-case), tough the pure copper can be used with higher laser power.
> oxidation at high temperatures
SLM machines typically use an Argon gas chamber. DED machines use an Argon gas shield.
> It’s more typical to print copper alloys than pure copper.
In the context of modern SLM, it depends on your definition of "pure" and "alloy". During the process, a bit of resin to is mixed into the powder and heat treated in a final step to get to 99.9% pure copper.
edit: Just fixed up my knowledge. Indeed alloys are typically used (99% copper with things like Chrome added on depending on use-case), tough the pure copper can be used with higher laser power.