Diamond Burnishing Tools Selection and Specifications Guide

Product catalog summary

Overview: Cogsdill Diamond Burnishing Tools are designed to produce mirror-like finishes on a variety of ferrous and non-ferrous surfaces using most turning machines, including manual and CNC. These tools are efficient, easy to set up, and require minimal operator skill.

Tool Designs: There are four tool designs to accommodate different machining needs:

DB-1: General purpose machining.
DB-2: For restricted work lengths.
DB-3 and DB-4: Designed for CNC machining centers with offset tool holders for on-center diamond inserts.

Specifications and Usage:

Tools can burnish a wide range of metals, achieving finishes from 4 to 8 microinches on most metals and 8 to 15 microinches on cast iron.
Setup involves mounting the tool in the machine's tool post, aligning the diamond point with the workpiece centerline, and adjusting the burnishing pressure using a screw.
Recommended prefinish is 40 to 60 R.M.S., with a feed rate of 0.003 to 0.004 inches per revolution at speeds up to 750 surface feet per minute.

Operational Guidelines:

Adjust the burnishing pressure by tightening or loosening the adjustment screw.
Ensure the diamond insert does not exceed the recommended interference to avoid tool breakage.
For interrupted surfaces, the tool's design allows it to "climb" over edges, but care must be taken not to exceed interference limits.

Additional Notes:

Coolant is required, but no special type is necessary.
Multiple passes or slower feed rates may be needed for optimal finishes due to the lack of overlapping effect.

Catalog excerpts

Diamond Burnishing Tools Selection and Specifications Guide-1

Cogsdill Tool Products, Inc. Diamond burnishing tools For producing low microinch finishes on shafts or faces of any diameter, or on large bores. ■ Four designs allow use on most turning machines, manual or CNC ■ Replaceable, polished diamond insert ■ Adjustable for optimum burnishing pressure Cogsdill Diamond Burnishing Tools are simple, efficient tools designed to produce mirror-like finishes on a wide range of ferrous and nonferrous part surfaces on most turning machines. Set up and cycle times are short, even for unskilled operators. In all cases, the replaceable diamond insert can be changed quickly; on some models without removing the tool holder from the machine. 40 Four tool designs to suit your application requirements: ■ DB-1 For general purpose machining ■ DB-2 For use where work length is restricted ■ DB-3 and DB-4 For use on CNC machining centers – the tool holders are offset so that the diamond insert is on center

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Diamond Burnishing Tools Selection and Specifications Guide-2

Diamond burnishing tools in the tool post of a manual lathe, automatic, or in CNC equipment. The tools can be used on both large and small diameters, and are ideal for short production runs. The Diamond Burnishing Tool can produce quality finishes on interrupted surfaces, such as a shaft with a keyway or the face of a flange having a series of bolt holes. While the tool must be used with coolant, no special coolant is required. Straight oils, soluble oils, and synthetic coolants can be used to provide the necessary lubrication. diamond The Cogsdill Diamond Burnishing Tool is designed to produce...

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Diamond Burnishing Tools Selection and Specifications Guide-3

Diamond burnishing tools How it works The Cogsdill Diamond Burnishing Tool is mounted in the tool post of the desired machine. The diamond burnishing point is brought into contact with the workpiece at the centerline of the part and perpendicular to the surface being finished. The tool is then fed into the workpiece an additional .002 or .003 inch (.05 or .08mm) to allow the diamond insert to become disengaged from the stop in the holder. The spring, with its preload, forces the diamond against the workpiece. The tool is then fed along the surface of the rotating workpiece to produce a mirrorlike...

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