What This Page Covers: Aerospace-Grade CNC Machining for Aluminum and Titanium This is CNC machined aerospace parts in aluminum (7075-T6, 6061-T6) and titanium (Ti-6Al-4V, Grade 5)
BQUQ CNC Machined Aerospace Parts Aluminum Titanium | Precision Manufacturing
What This Page Covers: Aerospace-Grade CNC Machining for Aluminum and Titanium This is CNC machined aerospace parts in aluminum (7075-T6, 6061-T6) and titanium (Ti-6Al-4V, Grade 5), produced by BQUQ,
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What This Page Covers: Aerospace-Grade CNC Machining for Aluminum and Titanium
This is CNC machined aerospace parts in aluminum (7075-T6, 6061-T6) and titanium (Ti-6Al-4V, Grade 5), produced by BQUQ, a 20-year precision manufacturing factory in Dongguan, China. You get tolerances of ±0.005 mm, runout under 0.01 mm, and surface finish down to Ra 0.4 µm — all verified on a CMM before shipment. Typical lead time is 7 days for prototypes, 15 days for production runs, and we hold a hardness range of HRC 20–45 depending on material and heat treatment.
We are not a trading company. We run 32 CNC machining centers (3-axis, 4-axis, 5-axis) in-house, plus stamping and spring lines. That means one purchase order covers machined brackets, spring-loaded latches, and heat sinks — all inspected to AS9102 standards if you request it. Every part ships with a full dimensional report, material certificate, and surface finish trace.
Why Aluminum 7075-T6 and Titanium Grade 5 Dominate Our Aerospace Work
Aluminum 7075-T6 offers a yield strength of 503 MPa and fatigue resistance that suits airframe brackets and interior structural parts. Titanium Ti-6Al-4V gives you a strength-to-weight ratio 40% better than steel, with corrosion resistance that handles fuel and hydraulic fluid exposure. We machine both on the same 5-axis centers, but we use different tool paths and coolant concentrations for each — a lesson we learned from our CNC cutting tool selection guide, which explains why carbide end mills with TiAlN coating are mandatory for titanium at speeds above 40 m/min.
For thin-wall titanium parts (0.8 mm wall thickness), we reduce spindle speed to 2,500 RPM and use trochoidal milling to keep heat out of the cut. This prevents work-hardening and chatter marks. For aluminum, we run at 15,000 RPM with high-pressure coolant through the spindle. Both materials are cut to the same tolerance, but your drawing must specify which one you need — we cannot swap materials without a new quote, because the thermal expansion rates differ by 50%.
Inspection Before Every Shipment: CMM, Hardness, and Surface Finish
Every batch of CNC machined aerospace parts goes through a three-step inspection. First, a coordinate measuring machine (CMM) checks critical dimensions against your GD&T callouts — we hold true position within 0.01 mm. Second, a Rockwell hardness tester verifies HRC values, especially after heat treatment (T6 for aluminum, solution-treated and aged for titanium). Third, a profilometer measures Ra surface finish on sealing faces and mating surfaces.
We do not skip inspection for small orders. Even a single prototype gets the same CMM report as a 5,000-piece production run. You receive a PDF with all measured values, a pass/fail summary, and photos of the part on the CMM fixture. If any dimension is out of tolerance, we re-machine or reject the batch — we never ship a nonconforming part. For a deeper look at how we define and control tolerances, read our CNC machining tolerances guide.
Materials and Heat Treatment We Use for Aerospace Parts
We stock raw material in four grades: 6061-T6 (cost-effective, good weldability), 7075-T6 (highest strength aluminum), Ti-6Al-4V Grade 5 (standard aerospace titanium), and Ti-6Al-4V ELI (for medical-adjacent or cryogenic applications). For aluminum, we can also supply 2024-T3 and 7050-T7451 if your drawing specifies them — these are common for wing skins and fuselage frames. For titanium, we offer Grade 2 (commercially pure) for non-structural parts that need formability.
Heat treatment is performed at certified partner facilities within 5 km of our factory. We do not run heat treat in-house because the furnaces require NADCAP certification, which we prefer to outsource. But we control the process: we specify the solution treatment temperature (e.g., 490°C for 7075), the quench delay (under 10 seconds), and the aging cycle (120°C for 24 hours). After heat treatment, we re-machine any surfaces that might have distorted — typically thin ribs or flanges. Final hardness is HRC 20–25 for 6061-T6, HRC 28–35 for 7075-T6, and HRC 30–40 for Ti-6Al-4V.
5-Axis Capability: Complex Geometries Without Multiple Setups
Our 5-axis CNC centers (DMG MORI and Mazak, 5 units) allow us to machine undercuts, angled holes, and curved surfaces in a single clamping. This is critical for aerospace parts like turbine blade roots, manifold blocks, and structural brackets with compound angles. With 3-axis only, you would need five to eight setups, each introducing positioning error. With 5-axis, we hold runout under 0.01 mm between features that are machined at different orientations.
We also use 4-axis indexing for cylindrical parts like actuator housings and valve bodies. The fourth axis lets us rotate the part to machine radial holes and slots without re-fixturing. For parts longer than 600 mm, we switch to a gantry mill with a 1,200 mm travel. Maximum part size on our 5-axis centers is 800 mm x 600 mm x 500 mm. If your part exceeds that, we can discuss splitting it into two pieces and bolting or welding — but that adds a joint, so we only recommend it for non-critical structures.
Surface Finishes and Post-Processing Options
Standard machined finish is Ra 0.8 µm, which is acceptable for most interior brackets. For sealing surfaces, we can achieve Ra 0.4 µm with a fine boring or grinding pass. For cosmetic exterior parts, we offer anodizing (Type II clear or hard coat to MIL-A-8625), alodine conversion coating, and bead blasting to a uniform matte appearance. Titanium parts can be passivated to AMS 2700 or coated with a dry film lubricant like MoS2 for threaded fasteners.
We do not apply paint or primer — that is typically done by your tier-one assembler. But we can deburr every edge (0.1 mm max radius), break sharp corners, and add laser-engraved part numbers and date codes. If you need a specific surface finish for a composite bonding application, we can increase surface roughness to Ra 1.6–3.2 µm via grit blasting — this improves adhesive bond strength by up to 30% compared to a smooth machined surface.
Real-World Parts We Have Machined: Brackets, Housings, and Fittings
Over the past five years, we have shipped over 200,000 aerospace parts. Examples include: a 7075-T6 hinge bracket for a business jet aileron (240 mm x 80 mm x 6 mm, 14 holes with true position 0.05 mm), a Ti-6Al-4V hydraulic manifold block (150 mm cube, 22 cross-drilled holes, 0.8 mm wall between ports), and a 6061-T6 avionics chassis (400 mm x 300 mm x 120 mm, with 2 mm thin walls and 48 tapped holes). All parts passed first-article inspection on the first attempt.
We also machine spring-loaded components — a combination of CNC machining and our in-house stamping and spring coiling. For example, a landing gear door latch uses a machined aluminum body, a stamped steel lever, and a torsion spring we coil ourselves. This reduces your supplier count from three to one, and cuts logistics cost by roughly 15% per part. We have the full BOM in our ERP, so you can track every component from raw material to final assembly.
Pricing and Lead Time: What You Can Expect
For a single prototype (no MOQ), budget $150–$500 depending on material and complexity. For production runs of 100–500 pieces, per-unit price drops 40–60% because setup cost is amortized. Lead time is 7 days for up to 10 prototypes, 15 days for 100–500 pieces, and 25 days for 1,000+ pieces. Rush orders (3-day delivery) are possible for machined aluminum parts — we charge a 30% premium and reserve a dedicated spindle for your job.
We quote firm prices, not estimates. We hold the price for 30 days from quote date. If your drawing changes after the quote, we re-quote within 24 hours. Payment terms are 50% deposit, 50% before shipment for new customers; net 30 is available after three paid orders. We ship via FedEx, DHL, or your freight forwarder, with Incoterms EXW, FOB, or DDP — your choice.
BQUQ as Your Precision Manufacturing Partner in China
We are a 20-year-old factory in Dongguan, part of the Pearl River Delta manufacturing cluster. We have 120 employees, 32 CNC machines, and an in-house QC lab with a CMM, profilometer, and hardness tester. Our export ratio is 85%, with customers in the US, Germany, and Japan. We are ISO 9001:2015 certified and can run AS9102 first-article reports on request. We are not the cheapest factory in China — we are the most predictable one.
Made in China does not mean low quality. We prove that with every shipment: a full inspection report, a material certificate, and a 30-day warranty against defects. If a part is nonconforming due to our error, we re-machine it at no cost and cover the expedited shipping. That is our written policy, not a verbal promise.
What is the minimum order quantity for CNC machined aerospace parts?
No MOQ — we machine a single prototype for $150–$500, and you can scale to 1,000+ pieces without re-quoting.
Can you customize a standard part to my drawing?
Yes, we machine entirely from your 2D or 3D CAD file (STEP, IGES, or PDF with GD&T), and we can suggest material or tolerance changes if they reduce cost without affecting function.
How do you control quality on a large production run?
We inspect the first article 100% on CMM, then every 10th part during the run, and the last 5 parts before packing — all results are in the shipment report.
What is your typical lead time for a rush order?
For aluminum parts, 3-day delivery is available at a 30% premium; for titanium, 5 days is the fastest we can guarantee without risking quality.
Get a Firm Quote Within 12 Hours
Send your drawing in STEP or PDF format to sc@bquq.com. We will reply within 12 hours (usually faster — our average response time is 4 hours) with a firm price, lead time, and a DFM (design for manufacturability) note if we see any risk. For urgent projects, WhatsApp +86 13713157787. No MOQ, no pressure — just a clear, itemized quote for your aerospace part.
