// AS9100-LEVEL PROCESS CONTROL
PRECISION AEROSPACE CNC MACHINING.
Titanium, Inconel, and aerospace aluminum machined to ±0.002mm — with full material traceability, CMM inspection reports, and PPAP documentation. Baosheng is the factory-direct aerospace parts manufacturer that treats your supply chain risk as seriously as your tolerance callout.
- ISO 9001:2015 CERTIFIED
- IATF 16949:2016
- FULL TRACEABILITY
- 2-HOUR QUOTE
// PRECISION METRICS
- Tightest tolerance：± 0.002 mm
- Surface finish (Ra)：0.2 μm achievable
- Axes available：3 / 4 / 5-axis simultaneous
- CMM verification：100% on critical dims
// AEROSPACE MATERIALS
// CERTIFICATIONS
- ISO 9001:2015
- ISO 13485
- IATF 16949
- ISO 14001
±0.002mm
Precision tolerance
20+
Years aero experience
4certs
Active certifications
100%
Material traceability
Quality Standards
ISO 9001:2015 ISO 13485 Medical IATF 16949 Full material traceability PPAP documentation 2-hour certified quote
FULL MATERIAL TRACEABILITY — FROM MILL TO SHIPMENT
Aerospace procurement requires more than a good part. Every aerospace component we ship carries an unbroken chain of documentation from the material mill certificate to the CMM inspection report. Here’s how that chain works.
Material procurement
1.Mill certificate & heat batch tracking
Every raw material arrives with a mill certificate — alloy composition, mechanical properties, heat/lot number, and forge/cast number where applicable. We verify chemical composition matches the specification before stock acceptance. All certs retained for 10 years.
- Mill Certificate (EN 10204 3.1 / 3.2)
Pre-machining
2.Drawing review & DFM — AS9102 FAI prep
Engineer reviews your drawing against the material spec and our process capability. Critical characteristics identified and flagged. Inspection plan created matching each GD&T callout to a measurement method. FAI (First Article Inspection) scope defined before first chips fly.
- DFM Report + Inspection Plan
During machining
In-process SPC & critical dimension verification
Critical dimensions verified after each setup — not just at final inspection. Statistical Process Control applied on high-volume runs. Any out-of-control condition triggers immediate work-stop and root cause analysis before production continues.
- SPC charts + in-process records
Final inspection
4.CMM dimensional report — 100% on critical features
Zeiss / Renishaw CMM measures every critical dimension defined in the inspection plan. Actual vs. nominal deviation reported for each feature. Non-conforming parts are quarantined and dispositioned before the batch ships — zero escape policy.
- CMM Dimensional Report (per part or batch)
Shipment
Certification package ships with every order
Secure export packaging protects precision surfaces in transit. Documentation package — mill certificate, CMM report, material cert, RoHS declaration, and PPAP (if applicable) — enclosed with every shipment. Digital copy emailed at dispatch.
- Full documentation package
ISO 9001:2015
QUALITY MANAGEMENT
Full QMS covering design review, process control, inspection, non-conforming product handling, and corrective action. Annual third-party audit.
·All processes ·Annual audit
IATF 16949:2016
AUTOMOTIVE GRADE QMS
PPAP Level 1–3 submission capability. SPC process monitoring. Customer-specific requirements (CSR) management. Cpk ≥ 1.67 guaranteed at volume.
·PPAP Level 1–3 ·SPC standard
ISO 13485:2016
MEDICAL DEVICE QMS
Full device history record (DHR) capability. Biocompatibility documentation. Implant-grade traceability to ISO 10993. Clean room packaging available.
·Medical-grade ·DHR capable
ISO 14001:2015
ENVIRONMENTAL MANAGEMENT
RoHS compliance documentation. REACH substance declarations. Cutting fluid recycling. Material waste reduction programs. Environmental performance reporting.
·RoHS compliant ·REACH ready
PRECISION CNC MACHINING — AEROSPACE ALLOY MATRIX
Aerospace materials demand different strategies — from tool geometry to cutting parameters to workholding. Here’s what we machine and what makes each alloy a challenge.
Ti-6Al-4V
// TITANIUM GRADE 5 · AMS 4928
- Tensile strength：950 MPa
- Machinability index：32
- Density：4.43 g/cm³
- Service temp.：315 °C
Aerospace: turbine blades · structural frames · landing gear components · fasteners · hydraulic fittings
Low thermal conductivity → heat builds in tool. Use sharp PVD-coated carbide, high coolant pressure, conservative feeds. Cutting dry is not permitted.
Inconel 718
// NICKEL SUPERALLOY · AMS 5662
- Tensile strength：1,375 MPa
- Machinability index：18
- Hot hardness (800°C)：High
- Service temp.：700 °C
Aerospace: turbine discs · combustor casings · exhaust systems · high-temp fasteners · bleed air ducting
Work-hardens rapidly. Use small depth of cut, sharp tools. Tool life 3–5× shorter than stainless. Part pricing reflects dedicated tooling program.
Inconel 625
// NICKEL-CHROMIUM · AMS 5599
- Tensile strength：1,034 MPa
- Machinability index：22
- Corrosion resistance：Excellent
- Service temp.：980 °C
Aerospace: marine exhaust systems · chemical processing · seawater applications · bellows · flexible joints
Excellent corrosion resistance comes with very poor machinability. Requires aggressive coolant, low-vibration setups, and specialist tooling. Estimated 4× baseline cycle time.
Al 7075-T651
// AEROSPACE ALUMINUM · AMS 2770
- Tensile strength：572 MPa
- Machinability index：80
- Strength-to-weight：Best Al
- Corrosion resistance：Fair
Aerospace: fuselage skins · wing ribs · bulkheads · drone frames · satellite structures · missile casings
Poor corrosion resistance. Requires hard anodize or chem-film coating in service. 7075 anodizes inconsistently — surface finish requirements must specify Type III hard coat.
Al 2024-T4
// AIRCRAFT STRUCTURAL · AMS 2770
- Tensile strength：469 MPa
- Machinability index：82
- Fatigue resistance：Excellent
- Weldability：Poor
Aerospace: fuselage frames · wing structures · stringers · high-fatigue structural skins · pressure bulkheads
17-4 PH SS
// PRECIPITATION HARDENED · AMS 5604
- Tensile strength：1,310 MPa
- Machinability index：55
- Corrosion resistance：Good
- Heat treatability：Excellent
Aerospace: fasteners · pump shafts · valve bodies · hydraulic components · nuclear components
AEROSPACE ALLOY COMPARISON
| Alloy | Tensile (MPa) | Density g/cm³ | Machinability | Heat resistance | Relative cost | Primary use |
|---|---|---|---|---|---|---|
| Ti-6Al-4V | 950 | 4.43 | Difficult (32) | 315 °C | High | Structural, fasteners |
| Inconel 718 | 1,375 | 8.19 | Very difficult (18) | 700 °C | Very high | Turbines, hot section |
| Inconel 625 | 1,034 | 8.44 | Very difficult (22) | 980 °C | Very high | Exhaust, corrosive |
| Al 7075-T651 | 572 | 2.81 | Good (80) | 120 °C | Medium | Structural, skins |
| Al 2024-T4 | 469 | 2.78 | Good (82) | 120 °C | Medium | High-fatigue structures |
| 17-4 PH SS | 1,310 | 7.75 | Moderate (55) | 315 °C | Medium-high | Fasteners, shafts |
Don’t see your alloy? We also machine Waspaloy, Hastelloy C-276, René 41, A-286, and other aerospace-grade alloys. Send your spec sheet.
CNC MACHINING TOLERANCE — AEROSPACE REQUIREMENTS
Aerospace tolerance callouts are not optional suggestions. Here’s what each tolerance tier actually means for the machining process — and what inspection regime comes with it.
General machining
± 0.1 mm
3-axis standard · no premium
Spot check inspection
Caliper / gauge
Precision machining
± 0.025 mm
Standard aerospace · most features
CMM batch verify
Per drawing callout
High precision
± 0.010 mm
Critical fits · bearing bores
CMM 100% critical
+15–30% setup time
Aerospace critical
± 0.005 mm
Sealing surfaces · precision bores
CMM 100% + SPC
Thermal compensation
Maximum precision
± 0.002 mm
Dedicated setup · climate control
Full CMM report
Cpk documented
AEROSPACE TIP — Tolerance stacking
The most common aerospace drawing error: ±0.005mm on every feature “to be safe.” Each tight-tolerance feature adds CMM time and defect risk. Our DFM review maps every callout against its functional requirement — non-critical features get relaxed to ±0.025mm standard with zero impact on part performance.
Inspection plan creation
Every GD&T callout mapped to a measurement method before machining begins. Inspection frequency (100%, batch, or statistical) defined per feature criticality.
- AS9102 FAI plan
- Inspection record
Zeiss / Renishaw CMM measurement
Temperature-stabilised measurement room (20°C ±1°C). CMM accuracy: ±0.0008mm (MPE). All critical aerospace features measured with documented probe qualification.
- CMM qualification cert
- Probe calibration records
Dimensional report + Cpk calculation
Actual vs nominal for every measured feature. Cpk reported for high-volume runs. Non-conformances dispositioned before parts are released — zero-escape policy on critical characteristics.
- Dimensional report PDF
- Cpk ≥ 1.67
PRECISION AEROSPACE COMPONENTS — BY SUBSYSTEM
From structural airframe to hot-section turbine components — the requirements differ by subsystem. Here’s where Baosheng machining capability fits the aerospace supply chain.
// AIRFRAME & STRUCTURAL
STRUCTURAL COMPONENTS
Fuselage ribs, wing spars, bulkheads, longerons, and structural brackets. Material: primarily Al 7075 and 2024. High material removal ratio — up to 85% billet weight removed. Full traceability required.
- Primary material：Al 7075-T651 / 2024-T4
- Tolerance：±0.025mm typical
- Inspection：CMM + FAI
- Cert required：Mill cert + CMM report
// PROPULSION & HOT SECTION
TURBINE COMPONENTS
Turbine discs, compressor cases, combustor components, and exhaust nozzle sections. Materials: Inconel 718/625 and titanium alloys. Extreme temperature and stress requirements drive tight tolerance and surface integrity demands.
- Primary material：Inconel 718 / Ti-6Al-4V
- Tolerance：±0.005–0.010mm
- Surface integrity：Ra ≤0.4μm, no re-cast
- Inspection：CMM 100% + SPC
// HYDRAULICS & ACTUATION
HYDRAULIC COMPONENTS
Landing gear fittings, hydraulic manifolds, valve bodies, actuator housings, and pressure vessel components. Material: titanium Grade 5 and 17-4 PH stainless for their exceptional strength-to-weight and fatigue resistance.
- Primary material：Ti-6Al-4V / 17-4 PH SS
- Bore tolerance：±0.005mm ID/OD
- Pressure rating：Proof test records
- Traceability：Heat lot → finished part
EVERY DOCUMENT AEROSPACE PROCUREMENT REQUIRES
Aerospace supply chain qualification is documentation. Here’s every deliverable Baosheng provides — and the standard it conforms to.
MILL CERTIFICATE
// EN 10204 TYPE 3.1 / 3.2
Chemical composition, mechanical properties, heat number, lot number, and forge/cast number. Issued by the raw material mill — not a distributor copy. Type 3.2 available with independent inspection authority.
- Included with every aerospace order
CMM REPORT
// DIMENSIONAL INSPECTION
Actual vs. nominal for every GD&T callout in your inspection plan. Zeiss / Renishaw CMM, accuracy ±0.0008mm. Probe calibration records attached. Available as per-part or batch statistical report depending on quantity and criticality level.
- Per-part or batch — your choice
PPAP PACKAGE
// AIAG LEVEL 1–3
Full Production Part Approval Process submission. Level 1 (warrant only) through Level 3 (full data package). Includes design records, process flow, control plan, PFMEA, MSA, initial process capability study, and sample parts. Required for automotive-grade aerospace customers.
- On request — Level 1, 2, or 3
FAI REPORT
// AS9102 FIRST ARTICLE
AS9102 First Article Inspection report confirming production process capability for first-off parts. Includes dimensional results, material verification, functional test results, and conformance statement. Required for new aerospace part numbers entering production.
- Standard on new part numbers
ROHS / REACH
// SUBSTANCE COMPLIANCE
RoHS II (2011/65/EU) compliance declaration for restricted hazardous substances. REACH SVHC substance disclosure per EU 1907/2006. Material Disclosure Statement identifying all substances above 0.1% by weight. Critical for aerospace parts entering EU regulated markets.
- Available on request
SPC / CPK REPORT
// PROCESS CAPABILITY
Statistical Process Control charts and Cpk capability indices for critical characteristics on production runs. Minimum Cpk 1.67 guaranteed on controlled characteristics. Provided for 500+ piece runs or by customer requirement at lower quantities.
- 500+ pieces standard
DOCUMENTATION AVAILABILITY MATRIX
| Document | Standard | Prototype (1–10 pc) | Low volume (10–100 pc) | Production (100+) | Lead time |
|---|---|---|---|---|---|
| Mill certificate | EN 10204 3.1 | Included | Included | Included | With shipment |
| CMM report | ISO 10360 | On request | Batch report | Per-part available | Same day |
| FAI report | AS9102 | On request | Standard | Standard | +1 day |
| PPAP Level 1 | AIAG | — | On request | On request | +2 days |
| PPAP Level 3 | AIAG | — | — | On request | +5 days |
| SPC / Cpk | AIAG MSA | — | On request | Standard | With shipment |
| RoHS / REACH | EU directive | On request | On request | On request | +1 day |
| NDA | Baosheng standard | Included on request | Included | Included | Same day |
All certifications delivered digitally with each shipment. Physical copies available on request.
HOW WE CONTROL QUALITY ON AEROSPACE PARTS
DRAWING REVIEW & DFM
Engineer reviews against process capability, material spec, and certification requirements. Critical characteristics identified. Inspection plan scoped. DFM report issued in writing.
MATERIAL VERIFICATION
Raw material lot verified against mill certificate before stock acceptance. Chemical composition confirmed. Mechanical properties checked against AMS/ASTM specification. Heat/lot number assigned to job traveller.
IN-PROCESS VERIFICATION
Critical dimensions verified after every setup change — not just at final. First-off measurement signed off before batch continues. SPC triggered on any approaching out-of-control condition.
FINAL CMM INSPECTION
All critical features measured on Zeiss/Renishaw CMM in temperature-controlled room. Actual vs. nominal report generated. Non-conforming parts quarantined. NCR raised and dispositioned before batch ships.
CERTIFIED SHIPMENT
Documentation package assembled: mill cert, CMM report, FAI (if applicable), RoHS/REACH (if required). Precision export packaging. Digital copy emailed at dispatch. Physical cert pack enclosed with shipment.
Aerospace CNC supplier comparison
| Requirement | Baosheng | Platform |
|---|---|---|
| Certifications | ISO 9001 + IATF 16949 | ISO 9001 only |
| Material traceability | Full heat → part | Supplier-dependent |
| CMM inspection report | Included, per-part | Extra charge |
| PPAP documentation | Level 1–3 available | Not standard |
| Inconel machining | In-house, dedicated tooling | Subcontracted |
| Titanium machining | In-house, Grade 2–5 | Via 3rd-party shops |
| Tolerance ±0.002mm | In-house 5-axis | Supplier-dependent |
| Surface integrity (Ra) | 0.2μm achievable | Variable |
| Who’s accountable | Factory — one contact | Platform middleman |
NDA signed before file review · Quote in 2 hours
WHAT DRIVES AEROSPACE CNC MACHINING COST
Aerospace parts cost more than commercial CNC machining — for specific, defensible reasons. Here’s the honest breakdown of what drives the premium.
Material — exotic alloy premium is real
Inconel 718 raw material costs 8–12× more than aluminum 6061. Titanium Grade 5 is 4–6× more. Beyond material cost, exotic alloys consume 3–5× more cutting tool life — each tool change is an additional cost. Our quoting separates material cost from tooling cost so you can see exactly where the premium sits.
- Highest impact
Material removal ratio — billet efficiency
Aerospace structural parts routinely remove 70–90% of the billet material. A 4kg billet yields a 400g part. Every kilogram machined away represents spindle time cost. Our DFM review assesses whether near-net-shape preforms (forgings, castings) could reduce removal ratio and cost for your application.
- High impact
Inspection and documentation overhead
A commercial CNC part might have 5 minutes of inspection time. An aerospace part with full CMM, FAI, SPC, and PPAP documentation might have 60–90 minutes of quality overhead per part. This overhead is non-negotiable — it’s what makes the part certifiable. We quote it transparently as a line item.
- Medium-high impact
5-axis complexity and single-setup requirement
Aerospace parts often have compound angles, multiple datum relationships, and feature interrelationships that demand 5-axis simultaneous machining in a single setup. 5-axis machine time is higher than 3-axis, but the elimination of repositioning errors on critical datum features is non-optional for aerospace tolerance stacks.
- Medium impact
Quantity — aerospace prototypes are expensive
Setup cost for an Inconel 718 part with 5-axis machining and full FAI documentation might be $800–1,200. At 1 piece, that’s the entire unit cost plus material and cycle time. At 50 pieces, it’s $16–24/piece. Aerospace prototypes at 1–5 pieces carry the full weight of a qualified process — which is exactly what they need.
- Scales with quantity
Aerospace prototype (1–5 pcs)
From $180 / pc
Ti-6Al-4V · 3-axis · as-machined · ±0.025mm · CMM report · mill cert · 5–7 day lead
Inconel 718 prototype (1–3 pcs)
From $650 / pc
Complex geometry · ±0.010mm · dedicated tooling · CMM 100% · 7–10 day lead
Al 7075 structural (10–50 pcs)
From $45 / pc
5-axis · ±0.025mm · anodize · CMM batch · FAI included · 5–8 day lead
Production run with PPAP (100+ pcs)
Volume pricing + PPAP Level 1–3
SPC monitoring · Cpk ≥ 1.67 · full documentation package · dedicated line
Free DFM Review on Every Aerospace Quote
Our engineer reviews your aerospace drawing for tolerance stacking risks, material-process incompatibilities, setup count reduction opportunities, and inspection plan scoping. Written report with cost-impact quantification. Available before you commit to an order. Average aerospace DFM savings: 15–35%.
NDA signed before file review · Quote in 2 hours
PRECISION AEROSPACE MACHINING — QUESTIONS ANSWERED
Are you AS9100 certified for aerospace CNC machining?
We hold ISO 9001:2015 and IATF 16949:2016 certifications, which cover the quality management system elements required by most aerospace prime contractors. Full AS9100 certification is in implementation — current aerospace customers are qualified through customer-specific audit and supplier questionnaire processes. Contact us to discuss your qualification requirements before submitting an RFQ.
Can you machine titanium Ti-6Al-4V for aerospace applications?
Yes — Ti-6Al-4V (Grade 5, AMS 4928) is one of our primary aerospace materials. We maintain dedicated PVD-coated carbide tooling programs for titanium, use high-pressure coolant to manage thermal load, and follow strict no-dry-cutting protocols. Mill certificates to EN 10204 3.1 included. Full material traceability from heat number to finished part.
Do you provide CMM inspection reports for aerospace parts?
Yes — CMM inspection on a Zeiss or Renishaw CMM in a temperature-controlled measurement room (20°C ±1°C). Reports show actual vs. nominal for every GD&T callout in your inspection plan. Available as per-part reports for critical aerospace applications or batch statistical reports for production quantities. Probe calibration certificates available.
Can you supply PPAP Level 3 documentation for aerospace production parts?
Yes — PPAP Level 1, 2, and 3 packages available. Level 3 includes design records, process flow diagram, PFMEA, control plan, MSA study, initial capability study (Cpk ≥ 1.67), qualified laboratory documentation, and sample parts with dimensional results. Allow 5 additional days for full Level 3 package preparation.
What’s the typical lead time for aerospace prototype CNC machining?
Aluminum 7075 aerospace prototypes: 3–5 days machining + 1 day CMM and documentation = 4–6 days total. Titanium Ti-6Al-4V: 5–8 days. Inconel 718 complex parts: 8–14 days (toolpath programming, slower cycle time, extended inspection). FAI adds 1 day. Rush available — discuss lead time requirements when submitting your RFQ.
Can you machine Inconel 718 and Inconel 625 for aerospace?
Yes — with dedicated tooling programs. Inconel 718 and 625 are among the most difficult materials to machine — machinability index 18–22 vs. 100 for free-cutting steel. We use sharp PVD-coated submicron carbide grades, aggressive coolant strategies, and conservative feeds to control work-hardening. Expect 3–5× longer cycle times and 3–5× higher tool consumption vs. stainless steel — reflected transparently in the quote.
Do you provide full material traceability for aerospace parts?
Yes — heat number to finished part. Raw material arrives with EN 10204 3.1 mill certificate. Heat/lot number is recorded on the job traveller and retained in our QMS. The CMM report references the heat number. Retained records available for 10 years. Type 3.2 certificates (with independent inspection authority) available on request for the highest traceability requirements.
Can you machine aerospace parts to surface roughness Ra 0.2μm?
Ra 0.2μm is achievable on 5-axis machined surfaces using high-speed finishing passes with small stepovers. Ra 0.4μm is standard on as-machined aerospace surfaces. For sealing surfaces or bearing seats requiring Ra 0.1μm or better, mirror polishing or ID honing is added as a post-machining operation. Specify your surface integrity requirement — we’ll confirm process capability in the DFM review.
Related Resources
Sheet Metal Fabrication
September 4, 2026
Sheet Metal Fabrication
September 3, 2026
Sheet Metal Fabrication
September 2, 2026
Sheet Metal Fabrication
September 1, 2026
PRECISION AEROSPACE CNC MACHINING. CERTIFIED.
Submit your aerospace drawing. A machining engineer reviews it with full DFM analysis, material verification, and a certification-ready quote — in 2 hours. NDA signed before file review.
✓ NDA before file review ✓ Mill cert included ✓ CMM report available ✓ PPAP Level 1–3 ✓ ISO 9001:2015 ✓ 2-hour quote