I was reading in Nasa Tech Briefs about Electron Beam Melting (EBM) being used to make near net and net parts out of titanium alloys. Other alloys have been used to make parts, aluminum being one, but the titanium alloys and CP titanium seem to be the predominant metals being used. After the parts come out of the EBM machine they are subjected to Hot Isostatic Pressing (HIP). the HIP process closes up any micropores in the EBM fashioned part. When an aluminum alloy is cast and then run through a rolling mill the structure is changed significantly. This wrought alloy behaves much differently than the same alloy as cast . My question is whether the HIP process changes the alloy so that it behaves more like a wrought alloy or if basically remains the same, just denser. Thanks, Eric
- posted
9 years ago