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Burnishing

Product catalog summary

Overview of Roller Burnishing
Roller burnishing is a technique that enhances the surface finish, size control, surface hardness, and fatigue life of metal parts using hardened steel rollers. It is efficient and economical, achieving surface finishes as fine as 2 micro-inches and improving wear resistance.

Internal and External Roller Burnishing Tools
The SR Series Roll-a-Finish® tools are for internal applications, while the AEX Series is for external applications. Both series offer adjustable tools for various sizes and configurations.

Tool Selection and Ordering
Cogsdill provides a range of standard and custom burnishing tools, with specifications to help select the appropriate tool based on part size and configuration.

Part Preparation and Operating Parameters
Proper preparation and adherence to operating parameters are essential for optimal burnishing results.

Special Applications and Tool Designs
Specialized tools are available for unique applications requiring specific surface finishes or configurations.

Single Contact Burnishing Tools
Diamond and Universal Burnishing Tools achieve mirror finishes on various surfaces, including ODs, large IDs, and faces.

Knurling-Burnishing Process
The KB® Knurling-Burnishing Process combines knurling and burnishing to salvage out-of-tolerance bores and shafts.

Burnishing Application Data Sheet
A data sheet is provided to document and optimize burnishing applications.

Overview of Bearingizing Tools
Bearingizing tools enhance surface finish and hardness by compacting surface peaks and valleys. They are effective for thin-walled parts, irregular wall thickness, and maintaining surface pores.

Key Specifications and Applications
Bearingizing achieves tight tolerances and is available for various applications, offering significant surface hardness improvements.

Comparison with Roll-a-Finish® Tool
Roll-a-Finish® offers wider adjustment, while Bearingizing requires closer presizing but increases surface hardness more significantly.

Tool Specifications and Ordering
Tools are available for through-hole, semi-bottoming, or bottoming applications, with detailed specifications for ordering.

Operation and Maintenance
Compatible with various machines, proper part preparation is crucial. Tools require regular maintenance, including lubrication and cleaning.

Speed and Feed Recommendations
Feed rates should be rapid for optimal tool life, with specific recommendations provided.

Coolant Recommendations
Specific coolants are recommended based on material type, with filtration to remove metal particles.

Maintenance & Repair
Routine maintenance is necessary for Roll-a-Finish tools, with options for inspection and reconditioning by Cogsdill.

Interchangeability
Mandrel and race assemblies are interchangeable within specified ranges, allowing adaptation of tools for different applications.

Roller Burnishing Parameters
Detailed speed and feed recommendations are provided, emphasizing the importance of not exceeding maximum feed rates.

Troubleshooting Guide
Common issues such as scratches and size problems are addressed with possible causes and solutions.

Special Applications & Tool Designs
Solutions are available for various part configurations, including internal and external tapers and multi-diameters.

External Roller Burnishing Machines
Cogsdill's CX machines enhance fatigue life and appearance, offering versatility with various model options.

Product Features
CX machines provide accurate sizing and low micro finishing, reducing the need for additional finishing operations.

Specifications
CX machines offer interference and compensating modes for different burnishing applications.

Sub-Assemblies
Four CX sub-assemblies are available, each designed for specific burnishing applications.

Speed and Feed Recommendations
Guidelines are provided for selecting speed and feed rates based on material type and part configuration.

Race Assemblies
Details on race assemblies for CX machines are provided, including part numbers and diameter ranges.

Diamond Burnishing Tools
These tools produce low microinch finishes and are adjustable for optimal pressure.

Operational Guidelines
Instructions for setting up and operating diamond burnishing tools are provided, emphasizing pressure adjustments.

Universal Burnishing Tools
UniversalTM tools are described for various applications, with setup and operating instructions for different models.

Universal Burnishing Tools (UBT-T and UBT-B)
Specifications and procedures for UBT tools are provided, including tool operation and lubrication recommendations.

KB Knurling Tools
Specifications and procedures for KB tools are detailed, emphasizing proper setup and coolant use.

Tool Specifications
Detailed specifications for KB knurling tools are provided, including tool numbers and diameter ranges.

Customer Information Form
A form is included for customer details and specific tool application requirements.

Application Data Sheet
The data sheet requests detailed information about the customer's part and tool use.

Important Notes
Emphasizes the importance of providing a part print or sketch for correct tool furnishing.

Catalog excerpts

Burnishing Burnishing TOOLS & MACHINES contents © COPYRIGHT 2012 COGSDILL TOOL PRODUCTS, INC. 2 Overview of Roller Burnishing 6 Internal Roller Burnishing Tools 6 SR Series Roll-a-Finish® Tools 12 U Series Roll-a-Finish® Tools 15 Bearingizing Tools 20 20 EXTERNAL ROLLER BURNISHING TOOLS AEX Series Roll-a-Finish® Tools 24 ROLL-A-FINISH® TOOL SELECTION AND ORDERING 25 PART PREPARATION AND OPERATING PARAMETERS 30 SPECIAL APPLICATIONS AND TOOL DESIGNS 32 CX® EXTERNAL ROLLER BURNISHING MACHINES 40 SINGLE CONTACT BURNISHING TOOLS 40 Diamond Burnishing Tools 44 Universal Burnishing Tools TM 58 KB® KNURLING-BURNISHING PROCESS 64 BURNISHING APPLICATION DATA SHEET C ATA L O G N O . 5 0 0 U . S . 0 6 - 1 2

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Roller burnishing overview Cogsdill Roll-a-Finish tools offer you a fast, clean, and economical method of sizing and finishing metal parts to exacting specifications. The tools can be operated on any spindle. Parts of virtually any configuration and material are accurately sized within “tenths,” with surface finishes as fine as 2 micro-inches (0.05 micrometers)... in seconds! An additional benefit: roller burnishing work hardens the part surface, producing a dense, compacted, wear-resistant surface for longer part life. Parts are improved, with faster production, and at a lower cost. size finish...

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Burnishing TOOLS & MACHINES Universal Burnishing Tools Bearingizing Tools Turning-Holder Style Boring-Bar Style External Roll-a-Finish® Tools CX® External Roller Burnishing Machines Internal Roll-a-Finish® Tools We are pleased to offer the widest array of standard burnishing products in the industry, supported by the broadest range of experience in application engineering and custom tool design. Let us provide you with burnishing solutions to meet your sizing and finishing needs, with Diamond Burnishing Tools faster production and at a lower cost. COGSDILL TOOL PRODUCTS, INC. Burnishing products...

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roll • er burn • i • shing defined Roller burnishing overview Roller burnishing is a surface finishing technique in which hardened, highly polished steel rollers are brought into pressure contact with a softer piece part. As the pressure generated through the rollers exceeds the yield point of the piece-part material, the surface is plastically deformed by cold flowing of subsurface material. The result is a mirror-like finish and a tough, work-hardened surface with load-carrying characteristics which make the burnished surface superior to finishes obtained by abrasive metal-removal methods....

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diamond CX external roller burnishing machines burnishing ■ Inside diameters (holes) ■ Outside diameters (shafts) ■ Flat surfaces ■ Tapers ■ Spherical surfaces and contours ■ Fillets (radii at shoulders) Standard Roll-a-Finish tools are available from stock for inside diameters from .187 to 4.000 inches (4.75 to 101.6mm), and for outside diameters from .062 to 2.000 inches (1.57 to 50.8mm). The tools are easily adjustable over a typical range of up to .040 inch (1.02mm). Special designs are available for larger and smaller diameters, and for tapers, faces, contours, and virtually any part configuration....

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Cogsdill Tool Products, Inc. SR Series Internal Roll-a-Finish® tools Our premier line of internal Roll-a-Finish® tools, designed to suit all applications. Ideal for applications where tool length is restricted by tool changers, turrets, etc. Offered in three styles: ■ Through-hole style with nohelix cage (machine-feeding) ■ Through-hole style with helix cage (self-feeding) ■ Bottoming-style for blind hole, with no-helix cage (machinefeeding) ... with up to four ■ ThroughHole (No Helix) work lengths: Two inch (SR) Four inch (SR-4) ■ Six inch (SR-6) ■ Eight inch (SR-8) ... and available from stock:...

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Internal Roll-a-Finish® tools SR series Standard tool specifications WORK LENGTH - TOOL PROJECTION "SR" SERIES ROLL-A-FINISH® TOOLS 3/16 TO 1/4 IN. (4.76 TO 6.35mm) DIAMETER RANGE TOOL NUMBER TOOL PROJECTION "SR" SERIES ROLL-A-FINISH® TOOLS 1/4 TO 1/2 IN. (6.35 TO 12.70mm) DIAMETER RANGE TOOL NUMBER Shanks other than shown above are available upon request.

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Internal Roll-a-Finish® tools SR series Standard tool specifications - WORK LENGTH - TOOL PROJECTION "SR" SERIES ROLL-A-FINISH® TOOLS 1/2 TO 1 IN. (12.70 TO 25.40 mm) DIAMETER RANGE TOOL NUMBER Shanks other than shown above are available upon request.

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Internal Roll-a-Finish® tools SR series Standard tool specifications TOOL PROJECTION "SR" SERIES ROLL-A-FINISH® TOOLS 1 TO 1-5/8 IN. (25.4 TO 41.28mm) DIAMETER RANGE TOOL NUMBER Shanks other than shown above are available upon request.

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Internal Roll-a-Finish® Tools SR series Standard Tool specifications TOOL PROJECTION "SR" SERIES ROLL-A-FINISH® TOOLS 1-5/8 TO 1-7/8 IN (41.28 TO 47.63mm) "SR" SERIES ROLL-A-FINISH® TOOLS 1-7/8 TO 2-5/32 IN. (47.63 TO 54.76mm) Shanks other than shown above are available upon request.

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Internal Roll-a-Finish® tools SR series Standard Tool specifications TOOL PROJECTION UNLIMITED WORK LENGTH "SR" SERIES ROLL-A-FINISH® TOOLS 2-5/32 to 2-1/2 in. (54.76 to 63.5mm) Shanks other than shown above are available upon request.

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Cogsdill Tool Products, Inc. U series Internal Roll-a-Finish® tools For hole diameters from 2.500 to 4.000 inches (63.5 to 101.6mm). Work length is unlimited; extension adapters can be used to increase work length. Offered in two styles: ■ Through-hole style with helix cage (self-feeding) ■ Bottoming-style for blind hole, with no-helix cage (machinefeeding) ... and available ThroughHole (Helix) from stock. Note: Also available from stock in through-hole, no-helix style. 12 Bottoming (No Helix)

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Cogsdill Tool Products, Inc. Bearingizing tools The Bearingizing Tool combines roller burnishing with peening action. As the tool is rotated at a high speed the rolls spin, rise, and fall over a cammed arbor, delivering up to 200,000 rapid fire blows per minute to the work surface. The peaks and valleys of the machined surface are compacted into a smooth, hardened, and ultrafine The Bearingizer may be the tool of choice where the following conditions exist: ■ Parts with thin walls — Bearingizing eliminates barrel-shaping of the part. ■ surface finish. Parts with irregular wall thicknesses — the...

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Burnishing

Burnishing

Catalog excerpts

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