Burnishing
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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

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...

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...

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...

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...

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...

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.

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.

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.

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.

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.

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)

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 —...