Case Study: Burnishing a Bore for a Space Exploration Application
THE CHALLENGE An aerospace manufacturer needed to meet a finish requirement of 0.4µm Ra (16µ” Ra) in a stainless steel bore. Material: Nitronic 60 –
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ID multi-roll burnishing tools are ideal for accurate sizing, low micro-finishing, and surface hardening of ID holes. Proven technology with decades of refinement. Common sizes available in stock, including all wear parts.
Manufactured by Elliott Tool Technologies, ID multi-roller burnishing tools can achieve a required surface finish on a variety of different applications and materials.
Our team has worked with thousands of different applications. If you have a question or are wondering if your application can be burnished, contact us here.
THE CHALLENGE An aerospace manufacturer needed to meet a finish requirement of 0.4µm Ra (16µ” Ra) in a stainless steel bore. Material: Nitronic 60 –
Summary Of Results Eliminated the need for a secondary operation Reduced cycle time Reduced scrap levels THE CHALLENGE A customer of ours was trying to
Summary Of Results Eliminated the need for sub-contracting Cycle time savings 12 Ra microinch (0.3 Ra) surface finish THE CHALLENGE A manufacturer was machining connectors
ID multi-roll burnishing tools have a standard size range for holes: 0.157” to 6.500” (3.987mm to 165.100mm). Custom special tools are available to fit your application.
Please note: There are multiple tool options within a “tool series”. Please have diameter, depth, and type of hole (through blind or bottoming- see next section) information available when requesting a quote!
| Tool Series | ∅ Size Range (Inch) |
|---|---|
| 5418 | 0.157 - 0.501 |
| 5419 | 0.500 - 0.625 |
| 5433 | 0.656 - 0.937 |
| 5444 | 0.968 - 1.187 |
| 5405 | 1.218 - 1.375 |
| 5406 | 1.406 - 1.812 |
| 5407 | 1.843 - 2.187 |
| 5408 | 2.218 - 2.687 |
| 5409 | 2.718 - 3.312 |
| 5610 | 3.343 - 4.062 |
| 5611 | 4.093 - 5.000 |
| 5612 | 5.031 - 5.875 |
| 5613 | 5.530 - 6.500 |
| Tool Series | ∅ Size Range (mm) |
|---|---|
| 5418 | 3.9120 - 12.725 |
| 5419 | 12.700 - 15.875 |
| 5433 | 16.662 - 23.800 |
| 5444 | 24.587 - 30.150 |
| 5405 | 30.937 - 34.925 |
| 5406 | 35.712 - 46.025 |
| 5407 | 46.812 - 55.550 |
| 5408 | 56.337 - 68.250 |
| 5409 | 69.037 - 84.125 |
| 5610 | 84.912 - 103.175 |
| 5611 | 103.962 - 127.000 |
| 5612 | 127.787 - 139.700 |
| 5613 | 140.462 - 165.100 |
Rolls with greater radius relief are used for through holes.These tools are self-feeding and a release clearance is required. These rolls are interchangeable between blind and through cages.
Blind rolls burnish closer to the bottom of a hole than through rolls.These rolls are interchangeable between blind and through cages.
Used in blind hole applications to burnish as close as possible to the bottom of the bore. These rolls are not interchangeable between blind or through cages.
Need a little more information about ID multi-roll burnishing tools? Detailed product PDFs are available below.
Includes tool dimensions, preparation recommendations, speeds/feeds and stock allowance charts.
Cage, Mandrel, Roll Replacement Instructions
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