Metal Reinforcement
Mechanical fasteners and mounting points in ruggedized electronics often incorporate high-strength metal components to provide durable threads and structural integrity. Using titanium inserts allows the assembly to withstand high torque and repeated assembly cycles that would strip the threads in softer materials like aluminum or FR4. These components are typically pressed into pre-drilled holes or over-molded during the fabrication of the enclosure or the PCB carrier.
Material Compatibility
Low thermal expansion and high corrosion resistance make this metal an ideal choice for harsh environments. When used in a printed circuit board, the titanium inserts must be designed with features that prevent rotation or pull-out under load. The stiffness of the metal helps distribute mechanical stress away from sensitive solder joints and brittle components.
Because titanium is relatively inert, it does not easily form galvanic couples with the common metals used in electronics, such as copper or gold. This property ensures that the mounting point remains stable even when exposed to salt spray or high humidity. The machining of these inserts requires specialized tools due to the hardness of the material, which adds to the overall cost of the hardware.
Thermal Expansion
Mismatch between the metal and the surrounding plastic or laminate can lead to cracking during extreme temperature swings. These titanium inserts are generally used in mission-critical hardware where the weight savings of the alloy justify the increased manufacturing difficulty.
