Tungsten has the characteristics of extremely high melting point, high hardness, corrosion resistance at room temperature, and high temperature resistance; its unique physical and chemical properties make it play an important role in optical instruments, chemical instruments and high-speed steel applications. Taking the CT technology in nuclear medicine as an example, the grating collimator has strict requirements on the aperture and porosity. The square hole is better than the round hole. The higher the atomic coefficient of the pure tungsten square hole collimator, the higher the density The larger the attenuation, the better the detection effect. However, traditional processing methods can only process tungsten-nickel-iron materials and cannot process pure tungsten products. Metal 3D printing technology provides a new way to solve this processing problem. may.
BLT print 100% pure tungsten grating
Tungsten is a refractory metal and generally has a melting point higher than 3000°C. The forming of this material requires a stable energy output for the spot quality of the equipment, and the problem of easy cracking of parts caused by high forming stress must be solved during the forming process. Following the successful printing of tungsten gratings in 2016, BLT has repeatedly adjusted and verified the process parameters of BLT-S210 to assist users in developing pure tungsten gratings with a thin-walled minimum forming size of 100 μm and a shading degree of nearly 100%. Help users to smoothly put into production use.
In response to the user's production needs and further optimization and promotion, Bright also developed and optimized the corresponding standardized process parameter scheme for pure tungsten grating forming and customized BLT-S210 equipment. At present, 4 sets of equipment have been successfully delivered to users, and the equipment is running well. This is a complete set of metal additive manufacturing solutions centered on customized equipment for pure tungsten grating products after completing the technological breakthrough in new material forming.
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