Automated Cross-Hole Deburring of SUS303 Medical Manifold Blocks | UFIBER Ceramic Brush Case Study

Industry: Medical

Application: Cross-hole deburring of precision-machined manifold blocks made from SUS303 stainless steel.

Objective: Automate Cross-Hole Deburring and Eliminate Manual Finishing

Eliminate burrs generated during cross-hole drilling on CNC-machined medical manifold blocks while replacing manual deburring operations with a fully automated and repeatable CNC process.

This cross-hole burr formation led to:

  • Inconsistent edge quality
  • High labor dependency
  • Risk of damaging precision-machined surfaces
  • Extended production cycle times
  • Difficulty maintaining repeatable quality in large production volumes

Because the component is used in medical applications, burr-free internal passages and stable surface quality were critical requirements. With a production volume of 10,0000 medical components per month, manual deburring was no longer sustainable.

Application Details

  • Part: Precision Medical Manifold Block
  • Material: JIS SUS303 / AISI 303 / UNS S30300 / EN 1.4305 / X10CrNiS18-9
  • Machine: DMU 50 3rd Generation
  • Cross-Hole Feature Length: 14 mm (0.551″)
  • Cross-Hole Diameter: Ø10.0 mm (0.394″)
  • Production Volume: 10,000 parts per month

Deburring Tool Used

UF2470 / UF-CH-O-D070-L60
Ø7 mm (0.276″) UFIBER™ Cross-Hole Ceramic Brush
Orange Grit #600

The UFIBER ceramic fibers expand under centrifugal force, allowing the brush to conform precisely to the internal hole geometry and effectively remove burrs generated at the hole intersection. Unlike conventional abrasive brushes, UFIBER maintains stable cutting performance while providing excellent process repeatability for automated CNC environments.

Machining Parameters:

Hole Diameter

S
Spindle Speed

F
Table Feed

Coolant

mm

Inch

RPM

mm/min

inch/min

10

0.394

9000

500

20

Dry

Results: From Manual Deburring to Automated CNC Process

Before UFIBER

Microscopic inspection revealed visible burr formation at the cross-hole intersection after drilling. These burrs required secondary manual finishing operations before assembly.

After UFIBER

The burrs were completely removed through the automated CNC deburring cycle. Internal edges became smooth and consistent while preserving dimensional accuracy of the component.

Surface quality measurements showed excellent finishing performance, achieving Ra 0.135 μm.

 

 

 

 

 

 

 

 

 

 

Key Benefits Achieved

✅ Fully automated cross-hole deburring

✅ Consistent burr removal across production batches

✅ Elimination of manual deburring operations

✅ Improved internal surface quality

✅ Reduced operator dependency

✅ Improved process repeatability

✅ Suitable for high-volume medical manufacturing

✅ Protection of critical precision features

Why UFIBER for Medical Manufacturing?

Medical components often contain internal passages, intersecting holes, and precision surfaces that are difficult to deburr manually without damaging the workpiece.

UFIBER ceramic fiber brushes provide:

  • Stable grinding performance
  • Excellent conformity to complex geometries
  • Long tool life
  • Automation compatibility
  • Superior surface finish
  • Reliable burr removal in stainless steel materials

The nano-technology ceramic fibers continuously expose fresh abrasive grains, maintaining cutting performance throughout the tool life while supporting fully automated CNC production environments.

Conclusion

By implementing the NOGA MT UFIBER™ Cross-Hole Brush, the customer successfully transformed a labor-intensive manual deburring operation into a fully automated CNC process.

The solution delivered reliable burr removal, improved surface finish, and repeatable quality on SUS303 medical manifold blocks while supporting monthly production volumes of 10,000 parts.

UFIBER enabled the customer to improve productivity, reduce manual intervention, and maintain the high-quality standards required in medical manufacturing.

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