Molybdenum has poor ductility at room temperature, and threaded parts are prone to brittle fracture during installation or impact.
1. Choose high-purity molybdenum (such as Mo-1) or doped alloys (such as TZM, containing titanium and zirconium, which can improve toughness).
2. Avoid rough installation and use a torque wrench to control the preload force.
Molybdenum has high hardness and brittleness, and traditional turning is prone to edge breakage, making it difficult to ensure thread accuracy.
1. Use thread grinding or electrical discharge machining (EDM).
2. Use diamond cutting tools for low-speed precision turning.