Titanium alloys are difficult to machine because they are hard and have a low coefficient of friction. The hardness of titanium results from its high strength and density, making it difficult to cut and shape. High strength also means that the material is less malleable and prone to cracking, which can happen during machining, heat treatment, or welding.
The low coefficient of friction can cause problems when cutting or milling titanium with conventional tooling materials. Titanium chips easily make it difficult for the tool to remove material from the workpiece. Chips also tend to stick to the tool tooth surface because there is no lubrication between them and the tool. This causes chip build-up on the tool face at high feed rates, resulting in poor surface finishes, reduced tool life, and excessive vibration during machining.
Another difficulty with machining titanium alloys is their low thermal conductivity, which means they don't cool down quickly enough when machining with cutting fluids or water cooling systems. This causes the workpiece material to become soft and reduces tool life because of chattering or breakage of tools.
Aerospace Industry
Titanium alloys are used extensively in the aerospace industry due to their high strength-to-weight ratio. They are used to make aerospace fasteners, aircraft frames, landing gear assemblies, and jet engines because they can withstand extreme temperatures without corroding or cracking under pressure.
Medical Industry
Titanium alloys are used in medical devices such as artificial joints and hip replacements because they are biocompatible and corrosion-resistant. The metal can be machined into intricate shapes without fracturing or cracking, making it ideal for surgical instruments such as scalpels or forceps. It is also used in dental implants because it does not irritate soft tissues like stainless steel does when implanted into the mouth cavity.
Electronic Industry
Titanium alloys have many uses in electronics because they are highly conductive and resistant to corrosion from most acids and alkalis. This makes them ideal for use as connectors in batteries or other electrical components that require electrical contact with each other but must not corrode over time from exposure to corrosive substances such as salt water.
