Titanium Machining & Fabrication | Ti6Al4V, Grade 5

Titanium Overview

Titanium is a transition metal with atomic number 22, discovered in 1791 and first commercially produced in the 1940s. It is the ninth most abundant element in the Earth's crust, yet its extraction and processing remain challenging and expensive, which contributes to its premium pricing relative to aluminum and steel. Despite the higher material cost, titanium's unique combination of properties makes it irreplaceable in critical applications where performance, reliability, and longevity are paramount.

The key properties that set titanium apart from other structural metals include an exceptional strength-to-weight ratio (titanium is about 40% lighter than steel but equally strong in many alloys), outstanding corrosion resistance in virtually all environments including seawater and chlorine exposure, excellent biocompatibility (it is non-toxic and is not rejected by the human body), high fatigue resistance, and the ability to withstand extreme temperatures from -250°C to over 600°C.

These properties make titanium essential in industries where failure is not an option. Aerospace structures rely on titanium for airframe components, engine parts, and fasteners that must perform reliably for decades. Medical implants use titanium because the body accepts it without rejection or allergic reaction. Chemical processing plants specify titanium for equipment exposed to aggressive corrosive environments. The oil and gas industry uses titanium for deep-sea components where both strength and corrosion resistance are critical.

Common Titanium Grades

Titanium is classified into several grades based on its alloy composition and mechanical properties. Commercially Pure (CP) titanium grades 1 through 4 are unalloyed titanium with increasing oxygen content, which correlates with increasing strength but decreasing ductility. Grade 1 (CP Grade 1) is the softest and most ductile, used primarily for applications requiring maximum formability. Grade 2 (CP Grade 2) is the most widely used CP grade, offering a good balance of strength, ductility, and weldability for chemical processing and marine applications.

Grade 4 (CP Grade 4) is the strongest of the commercially pure grades and is used where higher strength is needed without the cost of alloyed titanium. Grade 5 (Ti6Al4V), also known as the workhorse titanium alloy, is by far the most commonly used titanium alloy in the world. Containing 6% aluminum and 4% vanadium, Ti6Al4V offers significantly higher strength than CP titanium (tensile strength of approximately 950 MPa / 138 ksi) while maintaining good weldability, moderate machinability, and excellent fatigue resistance.

Additional alloy grades include Grade 7 (Ti-0.2Pd) for enhanced corrosion resistance in reducing environments, Grade 9 (Ti-3Al-2.5V) for improved formability and weldability with moderate strength, Grade 12 (Ti-0.3Mo-0.8Ni) for excellent crevice corrosion resistance, and Grade 23 (Ti6Al4V ELI) — the extra-low-interstitial version of Grade 5 — which provides improved ductility and fracture toughness for critical medical implant applications. At Swifab, we stock and process all these grades, with Grade 5 and Grade 23 being our highest-volume titanium materials.

CNC Machining Titanium

CNC machining titanium is one of the most challenging operations in precision manufacturing. Titanium's low thermal conductivity (about 1/6 that of steel) means heat generated during cutting concentrates at the tool-workpiece interface, causing rapid tool wear and potential workpiece surface damage if not managed properly. Additionally, titanium's high chemical reactivity at elevated temperatures causes it to weld to cutting tool surfaces, further accelerating tool degradation. These characteristics demand specialized expertise, tooling, and machining strategies.

Swifab's titanium CNC machining capabilities are built on years of experience and investment in the right equipment. We use 5-axis CNC machining centers with high-rigidity spindles, premium carbide and ceramic cutting tools specifically designed for titanium, through-spindle coolant systems operating at 70+ bar pressure, and optimized cutting parameters including reduced cutting speeds (typically 30-50 m/min for roughing) with appropriate feed rates. These strategies allow us to achieve tight tolerances of ±0.01mm and surface finishes of Ra 0.8-1.6μm on titanium components.

Our titanium CNC services produce parts for the most demanding applications: aerospace structural components and engine parts, medical implant components (hip stems, knee joints, bone plates, dental abutments), surgical instrument components, racing and motorsport parts, marine hardware, and chemical processing equipment. We work with all common titanium grades and maintain a comprehensive stock of Ti6Al4V round bar, plate, and billet material for fast turnaround on your titanium machining projects.

3D Printing Titanium (SLM)

Selective Laser Melting (SLM), also known as Direct Metal Laser Sintering (DMLS), is a transformative technology for titanium part production. SLM uses a high-powered laser to selectively melt titanium powder layer by layer, building complex 3D geometries that would be impossible or prohibitively expensive to produce through traditional machining. This additive manufacturing approach is particularly valuable for titanium because it significantly reduces material waste — titanium machining typically removes 70-90% of the raw material as chips, which cannot be economically recycled.

Swifab's SLM 3D printing service for titanium produces parts with mechanical properties that meet or exceed those of wrought titanium. Ti6Al4V parts produced via SLM achieve tensile strength of 950-1050 MPa, yield strength of 880-950 MPa, and elongation of 10-16% — comparable to or better than forged material. Post-processing including stress relief heat treatment, HIP (Hot Isostatic Pressing), and CNC finish machining ensures the final part meets all dimensional and mechanical specifications.

SLM titanium is ideal for producing complex geometries such as lattice structures, topology-optimized components, conformal cooling channels, and parts with internal features that cannot be machined from solid stock. Common applications include aerospace brackets and structural components with optimized weight-to-strength ratios, custom medical implants with porous surfaces for osseointegration, and complex fluid flow components. Swifab's engineering team can help you optimize your designs for SLM production, maximizing the benefits of additive manufacturing while ensuring manufacturability.

Laser Cutting Titanium

Laser cutting is an effective method for producing 2D titanium parts from sheet and plate material. Swifab's fiber laser cutting systems can process titanium sheets from 0.5mm to 10mm thickness with excellent precision and edge quality. The laser cutting process for titanium requires careful control of cutting parameters and assist gases to prevent the formation of brittle alpha case (an oxygen-enriched surface layer) that can compromise fatigue performance in critical applications.

Our titanium laser cutting service handles all common grades including CP Grades 1-4, Grade 5 (Ti6Al4V), Grade 7, and Grade 23. We use argon or nitrogen assist gas to minimize oxidation and maintain the metallurgical integrity of the cut edges. For aerospace and medical applications, we can provide laser-cut titanium parts with machined edges or additional surface treatment to remove any affected zone and restore full material properties.

Swifab processes titanium sheet in standard sizes up to 1500mm x 3000mm. Our nesting software optimizes material utilization — particularly important for titanium given its high material cost — reducing waste and lowering your per-part costs. Combined with our CNC machining and surface finishing capabilities, we offer a complete titanium fabrication solution from raw material to finished, inspected parts.

Surface Finishing for Titanium

Surface finishing plays a critical role in titanium part performance, particularly for aerospace and medical applications where surface quality directly affects fatigue life, corrosion resistance, and biocompatibility. Swifab offers a comprehensive range of titanium surface finishing options tailored to the specific requirements of each application.

For medical titanium implants, surface finish is especially critical. Swifab provides acid etching to create micro-rough surfaces that promote osseointegration (bone integration), grit blasting with biocompatible alumina media for controlled surface roughness, and electropolishing to achieve ultra-smooth, contamination-free surfaces for surgical instruments. Anodizing titanium produces decorative and functional oxide layers in a range of colors (achieved through voltage control rather than dyes), and can also enhance wear resistance for sliding or bearing surfaces.

For aerospace titanium components, we offer shot peening to induce beneficial compressive surface stresses that dramatically improve fatigue life, chemical milling (etching) for precise thickness control and weight reduction, passivation to ensure maximum corrosion resistance, and precision grinding and polishing for critical sealing and bearing surfaces. Swifab's finishing experts will specify the optimal treatment based on your part's functional requirements, environmental exposure, and industry standards.

Titanium Applications

The aerospace industry is the largest consumer of titanium, accounting for approximately 50% of global titanium production. Titanium is used extensively in airframe structures (landing gear components, wing structures, engine pylons, and fasteners), jet engine components (compressor blades, discs, casings, and fan blades), and spacecraft structures. The Boeing 787 Dreamliner uses approximately 15% titanium by weight, while modern military aircraft can contain 20-30% titanium. Swifab supplies precision CNC-machined and SLM-printed titanium components that meet the stringent requirements of aerospace OEMs and Tier 1 suppliers.

The medical industry is the second largest titanium market, with the metal being the material of choice for orthopedic implants (hip replacements, knee replacements, bone plates and screws, spinal fusion devices), dental implants and abutments, cardiovascular stents and pacemaker housings, and surgical instruments. Titanium's biocompatibility, corrosion resistance in body fluids, and mechanical properties similar to bone make it ideal for long-term implantation. Swifab produces medical-grade titanium components in compliance with ISO 13485 and FDA requirements, using Grade 23 (Ti6Al4V ELI) for critical implant applications.

Additional titanium applications include automotive racing and high-performance vehicles (exhaust systems, connecting rods, valve springs), marine and offshore equipment (propeller shafts, rigging, subsea components), chemical processing (heat exchangers, reactor vessels, piping systems), sports equipment (golf clubs, bicycle frames, tennis rackets), and consumer electronics (premium smartphone and watch casings). Whatever your titanium application, Swifab has the expertise and equipment to deliver parts that meet your exact specifications.

Challenges of Titanium Fabrication

Titanium fabrication presents several significant challenges that distinguish it from working with more common metals like aluminum or steel. First, titanium's low thermal conductivity means cutting tools generate intense local heat, leading to rapid tool wear — a single carbide end mill may only last 15-30 minutes when machining titanium compared to several hours for aluminum. Second, titanium has a high chemical affinity at elevated temperatures, causing it to gall or weld to cutting tools, dies, and forming equipment surfaces.

Third, titanium exhibits springback and has relatively low elastic modulus (about 110 GPa, roughly half that of steel), which means machined features can deflect during cutting, making it difficult to maintain tight tolerances on thin-wall or long-reach features. Fourth, titanium is highly reactive with oxygen, nitrogen, and hydrogen at elevated temperatures, requiring careful control of the processing environment — especially during welding and heat treatment — to prevent embrittlement and loss of mechanical properties.

These challenges mean that titanium fabrication requires specialized equipment, tooling, and expertise — all of which Swifab has invested in heavily. Our experienced team understands the nuances of titanium processing and has developed optimized procedures for every step of the manufacturing process, from material handling and storage (titanium must be kept clean and free of iron contamination) through machining, forming, welding, heat treatment, and finishing. This expertise allows us to deliver titanium parts with consistent quality, precise tolerances, and reliable mechanical properties — at prices that are significantly lower than Western titanium fabricators.

Why Choose Swifab for Titanium Parts

Swifab offers the most competitive pricing for titanium fabrication in the global market. Titanium parts from US or European fabricators typically carry enormous premiums due to high labor costs, expensive machine time, and limited titanium machining expertise. Our factory in Shenzhen combines highly skilled machinists with modern CNC equipment and efficient manufacturing processes, delivering titanium parts at prices 40-60% lower than Western suppliers — without any compromise on quality or precision.

With no minimum order quantities, Swifab makes titanium fabrication accessible for projects of all sizes. Whether you need a single titanium prototype for design validation or 10,000 production parts for an aerospace program, our pricing scales fairly. Our standard lead time for titanium CNC parts is 7-10 business days, with express options available for urgent requirements. Every customer receives a dedicated project manager who provides direct communication with our engineering team throughout the project.

Our comprehensive in-house capabilities — CNC machining (3/4/5-axis), SLM 3D printing, laser cutting, surface finishing, and inspection — provide a complete titanium fabrication solution. This eliminates the need to coordinate multiple suppliers and ensures consistent quality control throughout the manufacturing process. Every titanium part undergoes thorough inspection including dimensional verification (CMM), surface quality assessment, material certification review, and, when required, mechanical testing. Founded in 2010 by a former CNC operator, Swifab combines deep manufacturing expertise with modern technology to deliver the best value in titanium fabrication.

Titanium Machining & Fabrication Services