The application of titanium alloy springs

Titanium alloys are suitable for manufacturing automotive suspension springs and valve springs, as well as valves. Springs made of titanium alloys can reduce the weight by 20% compared to those made of high-strength steel with a tensile strength of 2100 MPa. The development of titanium spring types such as Ti-13V-11C-3Al and other titanium alloy springs is expected to be used in automotive engine valve springs and suspension springs. The biggest challenge in the application of alloys is the high cost; secondly, improving machinability, durability, and surface treatment technologies, and the establishment of recycling technology are also very necessary.

The automotive business department of the American Timet Company introduced the latest application of titanium in the Ferrari car ChallengeStradale model. TimetaLLCB was selected as the material for all suspension spring components of this model. For the first time in the world, titanium wheel bolts and titanium springs were used in this model. The application of titanium in other Ferrari models is still under development; the TimetaLLCB alloy can also be used in valve springs of high-performance racing cars, torsion springs of snowmobiles, and suspension springs of Volkswagen LuPo cars. Titanium valve springs can reduce weight by 34%, while titanium torsion springs for snowmobiles can reduce weight by 30-50%.

In the aerospace field, the use of Beta-C (Ti-3Al-8V-6Cr-4Mo-4Zr) titanium alloy has a history of more than 10 years. In addition, materials such as TC3(Ti-5AL-4V), TC4(Ti-6AL-4V), and TB3(Ti-3.5AL-10Mo-8V-1Fe) are also used in the research and production of titanium alloy springs.