CNC machining case studies
Case Studies

Real Parts. Real Challenges.
Real Results.

See how we solve complex CNC machining challenges across industries — from 5-axis aerospace brackets to high-volume connector production.

5-Axis Aerospace Structural Bracket
Aerospace

5-Axis Aerospace Structural Bracket

The Challenge

A European aerospace supplier needed a structural bracket with 23 machined features across 5 faces, including deep pockets, thin walls (1.2mm), and tight positional tolerances. Previous suppliers required 3 separate setups, causing misalignment issues.

Our Solution

We machined the part on our DMG MORI DMU 50 5-axis in a single setup, eliminating setup-induced errors. Thin-wall strategies with trochoidal milling prevented vibration and deflection.

Results

23 features in 1 setup
±0.005mm positional tolerance
1.2mm wall thickness maintained
Zero scrap in first article
Material
Aluminum 7075-T6
Finish
Chemical film per MIL-DTL-5541
Quantity
500 pcs
Titanium Surgical Instrument Handle
Medical

Titanium Surgical Instrument Handle

The Challenge

A US medical device company required a titanium instrument handle with a complex ergonomic profile, internal threading, and a biocompatible surface finish of Ra 0.4. Tight delivery of 2 weeks for first article.

Our Solution

Our mill-turn center handled both the external profiling and internal threading in one operation. Custom fixturing ensured vibration-free titanium cutting. Surface was polished to Ra 0.4 with manual finishing.

Results

Ra 0.4 surface finish achieved
First article delivered in 10 days
Full dimensional report included
Production: 5,000 pcs/year
Material
Titanium Ti-6Al-4V ELI
Finish
Polished Ra 0.4 + passivation
Quantity
5,000 pcs/year
EV Motor Housing — Die Cast + CNC
Automotive

EV Motor Housing — Die Cast + CNC

The Challenge

An EV startup needed 2,000 aluminum motor housings machined from die castings. The part required 14 machined features with tight flatness (0.02mm) on sealing surfaces, plus anodizing in custom brand color.

Our Solution

We developed a dedicated 3-op process on 4-axis HMC: Op1 locate & mill seal face, Op2 bore & tap, Op3 mill connector features. Custom anodizing matched the brand color sample provided by the client.

Results

0.02mm flatness on seal face
2,000 pcs delivered in 4 weeks
Custom color anodizing matched
Ongoing quarterly orders
Material
Aluminum A356 die casting
Finish
Type II anodize, custom RAL color
Quantity
2,000 pcs (first order)
Stainless Steel Hydraulic Manifold
Industrial

Stainless Steel Hydraulic Manifold

The Challenge

A hydraulic equipment manufacturer needed a 316L manifold with 12 cross-drilled ports and complex internal passages. Port positions required ±0.01mm true position, and all internal edges needed break-free deburring.

Our Solution

We programmed the manifold on a 4-axis VMC with angled fixtures for cross-drilling. Wire EDM was used for the internal cavity profile. All ports were probed on CMM to verify true position before shipment.

Results

12 ports within ±0.01mm TP
100% CMM verified
Break-free internal edges
Zero field failures reported
Material
Stainless Steel 316L
Finish
Passivated per ASTM A967
Quantity
200 pcs
Robot Joint Housing — Lightweight Alloy
Robotics

Robot Joint Housing — Lightweight Alloy

The Challenge

A robotics company needed a lightweight joint housing with integrated cable routing channels, bearing seats, and mounting flanges. The part required 0.008mm concentricity between bearing bores.

Our Solution

5-axis machining on MAZAK Variaxis with in-process probing to verify bearing seat positions before final bore cuts. Cable channels machined with long-reach tools to avoid secondary EDM.

Results

0.008mm concentricity achieved
Weight: 340g (target 350g max)
All features in 2 setups
Approved for series production
Material
Aluminum 7075-T6
Finish
Hard anodize Type III, 50μm
Quantity
1,200 pcs/year
High-Frequency RF Connector Body
Electronics

High-Frequency RF Connector Body

The Challenge

A telecommunications client needed brass connector bodies with 0.005mm bore concentricity and gold plating on internal surfaces. Monthly demand of 10,000 pcs required dedicated production cells.

Our Solution

We set up a dedicated Swiss-type lathe cell with bar feeders for uninterrupted production. Inline gauging checked every 50th part. Gold plating subcontracted to a certified local partner with full thickness testing.

Results

0.005mm bore concentricity
10,000 pcs/month steady output
Gold plating 2-3μm verified
CPK > 1.67 on critical dims
Material
Brass C36000
Finish
Gold plating 2-3μm over nickel
Quantity
10,000 pcs/month

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