Titanium CNC Machining
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Titanium CNC Machining
Titanium (symbol Ti) is a lightweight metal with a variety of useful properties, from corrosion resistance to strength retention at extreme temperatures.
Titanium is an advanced material with excellent corrosion resistance, biocompatibility and strength-to-weight ratio properties. These unique performance attributes make it ideal for the many engineering challenges facing the medical, energy, chemical processing and aerospace industries. Select CNC machining of titanium alloy in the Findtop real-time quotation engine.
Titanium At a Glance
| Application | Titanium is an advanced material widely used in the aerospace and medical industries. Its applications include medical implants, airframes, and parts used in highly corrosive industrial environments. |
| Advantages | Excellent strength-to-weight ratio, corrosion-resistant, biocompatible |
| Disadvantages | Costly, Can be difficult to machine |
| Lead Time | Lead time is generally a minimum of 3 days. However, this can increase depending on the titanium used or if the parts are manufactured internationally. |
| Price | $$$-$$$$ |
| Tolerances | Machining tolerances depend on the titanium used. However, a tolerance of 0.005” (0.13mm) is generally achievable. |
| Wall Thickness | A minimum wall thickness of 0.03” (0.8mm) is achievable. This can vary depending on the ratio of wall thickness to planar dimension. The minimum wall thickness is also affected by the specific grade of titanium. |
| Max Part Size | The maximum size of the part depends on the available machines and the part complexity. |
Titanium (Grade 2)
Titanium (secondary) is essentially pure (99%) non-alloyed titanium. It has excellent corrosion resistance and is easier to process than other titanium alloys. This grade is usually best when water corrosion resistance is required. Salt water and medical implants are some of its uses.
Titanium (Grade 2) Properties
| Tensile Strength, Yield (MPa) | Fatigue Strength (MPa) | Elongation at Break (%) | Hardness (Brinell) | Density (g/cm^3) |
|---|---|---|---|---|
| 275-410 | 300 | 20 | 149 | 4.51 |
Titanium (Grade 5)
Ti 6Al-4V or Grade 5 titanium is the most popular titanium alloy. Its main alloying elements are aluminium and vanadium. It also contains trace elements such as nickel, palladium and ruthenium, which greatly improves its corrosion resistance, far exceeding that of pure titanium. Stage 5 is commonly used for engine components and aircraft fuselages.
Titanium (Grade 5) Properties
| Tensile Strength, Yield (MPa) | Fatigue Strength (MPa) | Elongation at Break (%) | Hardness (Brinell) | Density (g/cm^3) |
|---|---|---|---|---|
| 880 | 240 | 14 | 334 | 4.43 |
Finishes and Post-Processing Options
Brass is not usually coated because of its inherent electrical conductivity, corrosion resistance and low coefficient of friction. If the application requires aesthetic or partial exposure, consider using a clear coating.
Hand sanding, machine sanding or polishing: Brass is often used to make decorative pieces. Part of the reason is that different brass alloys naturally take on different colors. The polished brass has a very smooth, glossy surface, making it the best choice for visual components.
Cost-saving Design Tips
Brass is an expensive material and it is recommended to optimize its use.
Design for Production (DFM): Although brass is easy to process, parts need to be designed according to the relevant DFM principles. In addition, the design to reduce the number of processing Settings will further reduce manufacturing costs.
Design simple structure: Design simple shapes and characteristics to reduce the amount of material.