Why Titanium Machining Is Different

Titanium is one of those materials that sounds simple until you try to cut it. I tell clients upfront: titanium alloys are chemically reactive at high temperatures and hold heat in the cut zone. This makes tool wear faster and chip control harder than with aluminum or steel.

We machine Grade 2 and Grade 5 (Ti-6Al-4V) titanium every week. Before the first cut, every raw bar goes through ultrasonic testing. Hidden cracks or voids in titanium are not something you want to discover mid-operation. One aerospace client had a batch of bars fail ultrasonic testing — they sent them back to the supplier and avoided a potential field failure.

Our Step-by-Step Workflow

Programming is where the precision starts. Our engineers use Mastercam and Siemens NX to program trochoidal milling paths. These keep the tool engaged at a constant angle, which reduces heat buildup and extends tool life.

Adaptive roughing is standard for titanium. The software adjusts feed rates based on real-time load data from the spindle. If the torque spikes, the machine backs off automatically. This prevents tool breakage and surface damage.

High-pressure coolant is non-negotiable. We run 1,000 to 1,500 psi through custom-positioned nozzles aimed at the cut zone. This flushes chips away fast and keeps the part cool. Without it, titanium work-hardens at the surface and destroys tool edges in minutes.

Post-Processing and Quality Checks

After machining, every titanium component goes through vibratory stress relief. This stabilizes the material before final inspection. We then run non-destructive testing — X-ray or fluorescent penetrant inspection — to catch any subsurface defects.

Surface treatment options include anodizing for corrosion resistance and bead blasting for uniform matte finishes. Final CMM inspection checks every critical dimension to ±0.005 mm tolerance.

AOOM's Titanium Capabilities

We run over 50 CNC machines with titanium-specific configurations. AS9100D and ISO 13485 certification means every part is fully traceable from raw material receipt to shipping. Prototype runs or high-volume production — the same process rigor applies.

Send your CAD files to chen@aoomtech.com for a quote within 24 hours.