The needs of different industries for the performance of parts are very different: automobile engine parts need to be high-temperature and wear-resistant; aerospace parts need to be high-strength and fatigue-resistant; medical implants need biocompatibility and bone fusion... And powder metallurgy technology can be customized according to different scenarios with its excellent performance customization ability. Seek, accurately regulate the performance of parts, and become the "master key" to adapt to diversified applications.

The core of performance customization lies in the flexible adjustment of powder composition and process parameters. In terms of material composition, powder metallurgy can mix a variety of metal and non-metallic powders in a specific proportion to form alloy materials with unique properties. For example, adding copper and nickel to iron-based powder can improve the strength and toughness of parts;The addition of graphite and molybdenum disulfide can give the parts self-lubricating properties, which is suitable for sealed environments that are not easy to lubricate. The high-temperature alloy powder commonly used in the aerospace field can maintain excellent strength and corrosion resistance in a high-temperature environment above 1000℃ by adding chromium, cobalt, tungsten and other elements and after heat and other static pressure sintering, which can meet the strict requirements of aircraft engine turbine discs.

The regulation of process parameters is also the key to performance customization. Slight changes in sintering temperature, pressure, insulation time and other parameters will affect the density, hardness, porosity and other performance indicators of the parts. Take titanium alloy artificial joint prosthesis in the medical field as an example, by controlling the sintering temperature at 1200-1300℃ and the pressure at 100-150MPa, the porosity of the prosthesis can be accurately controlled at30%-50%, this porous structure can make the body's bone cells grow smoothly, greatly improve the fusion effect of the prosthesis and the bone, and reduce the risk of loosening after implantation. When manufacturing high-hardness cemented carbide tools, by improving the sintering temperature and prolonging the insulation time, the density of the parts can be increased to more than 99%, and the hardness can reach more than HRA90, far exceeding the performance of traditional tool materials.

In addition, powder metallurgy can also meet the complex needs of "integrated multi-performance areas". A new energy vehicle motor manufacturer adopts powder metallurgy composite molding technology to manufacture the motor rotor. The iron core part has high magnetic conductivity, while the shaft sleeve part has high strength and wear resistance, which does not need to be combined through welding, splicing and other methods, which not only simplifies the production process, but also avoids the performance short board of the connecting parts.Nowadays, with the continuous upgrading of powder metallurgy technology, the accuracy and scope of performance customization continue to expand, providing possibilities for innovative applications in more high-end fields.