The rare metal tantalum has the characteristics of high melting point, high strength, corrosion resistance, high thermal stability, high thermal conductivity, excellent biological inertness and biocompatibility, and no radioactivity. Its unique physical and chemical properties make it play a unique application value in aerospace, aviation, electronics industry, medical implants and other fields.
For example, in the field of aviation applications, tantalum material formed parts can adapt to extremely high temperature working environments, assisting engines and combustion chambers to improve combustion efficiency and produce greater thrust-to-weight ratio;
In medical implants, porous tantalum has the typical characteristics of high volume porosity, low elastic modulus and high surface friction coefficient and good biocompatibility, which can reduce the "stress shielding" effect (that is, the hardness of the implant is too high The phenomenon of osteoporosis caused by insufficient mechanical stimulation of the adjacent bones), which is more conducive to the patient's postoperative recovery and allows the implant to obtain a longer service life.
Refractory metal 3D printing overcomes the impossible
Tantalum is a refractory metal with a melting point close to 3000°C. The forming of this material puts high requirements on the quality of the equipment's spot and requires stable energy output; during the forming process of tantalum, due to the large forming stress and the parts easy to crack, the forming process needs to be optimized To avoid such problems.
Blite prints tantalum samples
Tensile strength: 489.1Mpa; Yield strength: 441.4Mpa; Elongation after fracture: 32.55%; Reduction of area: 83.43%
Chinese 3D printing equipment manufacturer BLT has successfully printed pure tantalum parts by adjusting the laser power, spot size, spot quality, scanning strategy, scanning speed, squeegee structure, layer thickness and other process parameters of the BLT-S210. At the same time, in response to the new material development and new material verification requirements of universities and scientific research institutes, Bright also developed and optimized the corresponding standardized process parameter schemes for tantalum material forming.
BLT-S210 is a special model for R&D and forming of new materials launched by BLT after many product iterations and verifications. The forming size is 105mmX105mmX200mm, and the maximum forming efficiency is 15cm3/h. The equipment is built-in to adapt to the parameters required by scientific research institutes and laboratories for new material development and testing and new material verification parts forming. It can carry out printing research on a variety of special alloy materials, such as pure copper, copper alloy, magnesium alloy, tungsten alloy, tantalum, etc. .