Super-Ingenuity (SPI)

CNC Machining & Injection Molding — DFM/Moldflow Support, CMM Inspection, Prototype to Production Solutions.

ISO 9001 & IATF 16949 CERTIFIED
+(86) 0769 8166 7180 / [email protected]
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Precision CNC Case Studies: Real Projects in Aerospace, Automotive & Medical Manufacturing

At Super-Ingenuity, our precision CNC case studies show how real aerospace, automotive and medical projects move from RFQ to stable production. You’ll see how we use 5-axis machining, Swiss-type turning, and export molds to handle complex parts, tight tolerances and demanding lead times.

Typical results include cutting lead times from weeks to days, holding tolerances within ±0.005 mm, and reducing total cost by up to 20% through optimized fixturing, tooling and CPK-driven process control.

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On this page, you can:

  • Explore aerospace, automotive and medical CNC case studies with real tolerances, lead times and CPK data.
  • Compare how 5-axis machining, Swiss-type turning and rapid tooling are applied to different project types.
  • Jump to technical guides and whitepapers for deeper engineering and sourcing insights.
  • Contact our team for a DFM review and CNC quotation on projects similar to these examples.

Engineering resources related to our case studies

Use these resources alongside the case studies to understand not only the project results, but also the design rules, materials and quality systems behind them.

Case Study & Application Stories

See how real projects move from RFQ to production, including tolerances, materials, CPK data and lessons learned for future designs.

Design Guides & Whitepapers

Deep-dive resources to help you design parts that are easier to machine, mold and inspect, reducing tooling risk and total cost.

Precision CNC case studies

Explore selected CNC case studies from aerospace, automotive and medical customers. Each example highlights the original challenge, the manufacturing approach we used, and the measurable results achieved on real production parts.

All (Aerospace · Automotive · Medical)
Aerospace
Automotive
Medical
Aerospace 3D printed bracket with 5-axis CNC finishing
Case Study
Aerospace · 3D Printing + 5-Axis CNC

Lightweight Aerospace Bracket – 35% Weight Reduction in 7 Days

A Tier-1 aerospace supplier needed a lightweight 7075 aluminum bracket that met AS9102 FAI and strict CPK requirements. We combined metal 3D printing with 5-axis CNC finishing to reach flight-ready quality on a compressed schedule.

  • 35% weight reduction versus previous design.
  • 7-day turnaround from RFQ to FAI-approved parts.
  • Tolerances held within ±0.01 mm on critical features.
  • CPK ≥ 1.67 on all key dimensions.
View full case study
CNC machined automotive brake disc with lightweight geometry
Case Study
Automotive · CNC Machining

High-Performance Brake Disc – Lighter, Cooler, Faster

A performance car manufacturer wanted a lighter brake disc that could survive repeated track use. SPI redesigned the geometry and applied 5-axis CNC machining to optimize airflow, stiffness and repeatable balancing.

  • 18% weight reduction versus baseline disc.
  • 1.2 seconds faster per lap in on-track testing.
  • Improved cooling and reduced brake fade during endurance runs.
  • Stable series production with CPK ≥ 1.67 on critical dimensions.
View full case study
Precision molded medical catheter connector components
Case Study
Medical · Injection Molding

Leak-Free Catheter Connector – Reliable High-Volume Production

A medical device OEM was facing leakage and assembly rejects on catheter connectors. SPI redesigned the gate and sealing geometry, then validated the mold and process under a medical-grade quality system.

  • 0% leakage observed during validation and process capability runs.
  • Dimensional accuracy within ±0.02 mm on sealing features.
  • Stable high-volume production with fully traceable lots.
  • Significant reduction in complaints and scrap rate at the customer line.
View full case study

Industry-focused CNC machining solutions

Unlock industry-focused CNC machining solutions tailored to your sector. At Super-Ingenuity, we combine advanced 5-axis machining, Swiss-type turning and rapid tooling to meet the unique challenges of aerospace, automotive, medical, electronics, robotics and AI-related devices. Every project is backed by strict quality control, competitive pricing and fast delivery.

Aerospace and defense CNC machining for lightweight components

Aerospace

Lightweight, flight-ready aerospace CNC parts

Boost aerospace innovation with precision CNC solutions focused on lightweight brackets, housings and fixtures—tight tolerances, certified quality and rapid delivery under demanding approval flows.

See how we use 3D printing and 5-axis CNC to cut weight and lead times in our aerospace bracket case study.

Learn more aerospace CNC parts View aerospace case study
Electronics and semiconductor housings and heat sinks

Electronics

Precision housings and heat sinks for electronics

Power electronics projects with CNC-machined housings, heat sinks and connector blocks—optimized for thermal performance, assembly and repeatable cosmetic finishes.

Use our electronics capability together with CNC design and materials guides to turn complex layouts into stable, inspectable parts.

Learn more electronics CNC parts View CNC case studies
Robotics CNC machining for gears and frames

Robotics

CNC solutions for robotics and automation

Accelerate robotics innovation with CNC-machined gears, lightweight frames and precision mounting plates—combining small-batch prototypes with scalable series production.

Compare robotics projects with our published CNC case studies to see how tolerances, materials and CPK are handled from prototype to ramp-up.

Learn more robotics CNC parts View robotics-related case studies
AI industry sensors and device housings

AI Industry

CNC machining for AI devices and sensors

Empower the AI industry with precision CNC parts for sensors, cameras, actuator blocks and compact device housings—ideal for small batches, rapid iterations and design changes.

Combine AI hardware development with our CNC case studies to benchmark achievable tolerances, finishes and lead times before your next RFQ.

Learn more AI industry CNC parts View AI-related case studies

Engineering resources to complement our case studies

Use these tools and reference materials alongside our CNC case studies to plan your next project—from early DFM checks through qualification reports and detailed design guides.

Case studies

Browse CNC case studies by industry

Read detailed CNC case studies from aerospace, automotive and medical projects, including tolerances, CPK data and process routes that show how RFQs move into stable production.

Browse case studies by industry

DFM tools

Upload CAD for DFM & Moldflow review

Upload your CAD files and use our DFM checks to catch undercuts, thin walls and tool accessibility issues before machining or molding. Reduce rework and iterate designs with engineering feedback.

Try DFM & Moldflow review

Reports

See sample process & inspection reports

Review example quality documentation, including CMM charts, SPC data and CPK indices used for aerospace, automotive and medical audits—showing how we document every critical feature.

View sample reports

Guides

Design guides for CNC, molding & 3D printing

Access design guides covering CNC machining, injection molding and 3D printing, with practical recommendations for tolerances, wall thickness, materials and surface finishes that align with real factory capability.

Explore design guides

Partner clients

Trusted by global leaders in automotive, electronics and industrial equipment. We support OEMs and Tier-1 suppliers with CNC machining, injection molding and rapid manufacturing services for both prototypes and series production.

CNC machining supplier supporting Mitsubishi-related components

Mitsubishi

Automotive & industrial components support

Precision parts manufacturing for Tesla-related programs

Tesla

EV & energy-related prototype components

CNC machined parts for Denso automotive systems projects

Denso

Automotive systems & precision parts

Precision machining supplier for Kyocera industrial and electronic components

Kyocera

Industrial & electronic component machining

CNC and tooling support for Murata electronics-related parts

Murata

Electronics & sensor-related housings

Precision tooling and components for Good Smile manufacturing projects

Good Smile

Precision tooling & molded components

Case study metrics at a glance

A quick overview of the tolerances, lead times, quality levels and industries typically covered in our CNC and molding case studies.

Typical tolerances

±0.005–0.02 mm

On critical CNC features such as datumed bores, precision slots and sealing surfaces, depending on material and process route.

Lead time

5–15 days

From RFQ to first article approval for most CNC and molding projects, including DFM feedback and basic documentation.

Quality level

≥ 1.33 (target ≥ 1.67)

CPK on key dimensions, based on SPC and CMM data collected during pilot runs and early mass production.

Industry coverage

6+ core sectors

Aerospace, automotive, medical, electronics, robotics and AI hardware projects, from prototypes to stable series production.

Why our case studies are reliable

Each case study is grounded in real engineering work, measured data and certified quality systems—not marketing fiction.

  • Based on real customer projects: every case study reflects actual RFQs, prototypes and production runs managed by the SPI team.
  • Documented quality: tolerances and CPK values are taken from CMM inspection reports, SPC charts and process capability studies.
  • Certified systems: projects run under ISO 9001 and, where applicable, IATF 16949 or ISO 13485-aligned quality management.
  • Engineering-led content: all case studies are written and reviewed by SPI process and manufacturing engineers, not only by marketing.

Case study & CNC quote FAQ

Common questions from engineers and buyers who review our case studies and then request a quotation.

  • What information do I need to provide for a CNC quote?

    At minimum, please share 3D CAD files (STEP/IGES), 2D drawings with critical dimensions and tolerances, material, quantity and target lead time. If your project is similar to one of our case studies, mentioning that case name also helps us propose a faster process route.

  • Can you sign an NDA before we share drawings?

    Yes. We can sign a customer-provided NDA or use our standard NDA template before you send any models or drawings. All case studies on this page are anonymized and published only with customer permission or with identifying details removed.

  • What file formats do you accept for case study–type projects?

    We typically work with STEP, IGES, Parasolid and native CAD exports, plus PDF or DWG drawings. For molding projects, including material grades and expected annual volume helps us choose the right tooling concept.

  • Do you support small batches and prototypes?

    Yes. Many case studies begin with small prototype batches or pilot runs before scaling to series production. We support everything from one-off validation parts to ongoing CPK-controlled production, depending on your project stage.

Partner with SPI

Work With a CNC & Mold Manufacturer You Can Audit

Welcome to SPI — an ISO9001/IATF16949-focused CNC machining and injection molding partner in Dongguan, China.

We combine tight-tolerance machining, documented inspection and responsive engineering support to help you move from RFQ to stable production faster, with full traceability and audit-ready quality records.

Share your drawings and requirements — our engineers can suggest practical tolerances, surface finishes and inspection plans before you lock your RFQ.

Go to Contact Us & Request a Quote

Use the Contact Us form to upload STEP/IGES files and add notes about tolerances, surface finish and inspection.

Prefer email? Reach us via the form on the Contact Us page and ask to be added to our CNC DFM mailing list.

SPI CNC and mold manufacturing facility in Dongguan, China
On-site audits & factory visits welcome