Corrosion Issues
Titanium alloy fasteners are prone to gaps when installing. When paint is subsequently applied, it can flow into these gaps and corrode the fastener, compromising the tightness of the connection. Titanium alloys' corrosion resistance primarily relies on a protective oxide film on their surface, which effectively protects the titanium alloy from oxidation.
Turning Issues
Titanium alloys are difficult to machine and have poor thermal conductivity. Heat generated during machining concentrates in the cutting zone, increasing notch sensitivity and potentially leading to chipping and deformation. A blunted blade generates even more heat, shortening tool life and causing the workpiece to harden. This phenomenon compromises the titanium alloy's surface integrity and results in inaccurate part geometry. Therefore, tool adjustment is crucial during turning. For high-volume production, continuous cutting, and high-metal removal, carbide tools are recommended. For forming or parting operations, steel tools should be adjusted, and cermet tools may be used when necessary.
Precision Issues in Machining Titanium Alloy Fasteners
Higher precision is required for machining. During mechanical production, because the cutting tools are in a state of working wear during each production process, the cutting tools are always processed according to the original procedures. Over time, this can easily affect the precision of the fasteners during the processing. If the precision of the fasteners is not strictly controlled within the error range throughout the entire processing process, it will not be able to tightly connect the titanium alloy and other materials during use, which will also have a certain impact on subsequent use. Improving the precision of titanium alloy fasteners during the mechanical processing production process is a major challenge that needs to be overcome in the production process.
