Cogsdill Deburring and Roller Burnishing – EXCLUSIVE MTDCNC Promotion!

Detailed Specification

Cogsdill have an exclusive offer in conjunction with MTDCNC but only until the end of December 2018.

All Standard SRMR/SRMB Internal Roller Burnishing tools and Standard Burraway deburring tools will be supplied with either a set of spare rolls, or a spare HSS Blade when you redeem the code MTD1218

Burraway tools suit a variety of machines from manual to CNC – and can even be used in a hand-drill with excellent results.

They are available in a range of inch and metric sizes ranging from 0.093” (3/32”) to 2 inches or from 2mm to 50mm as standard, and a range of standard sizes for both imperial and metric sizes and an assortment of blades are in stock.

The Burraway tools feature an inexpensive, replaceable cutting blade which adjusts to control the amount of edge break and can be easily replaced within a few seconds. A range of cutting-edge geometry options to suit different materials are offered, and as standard, tools are supplied already fitted with a double acting blade. The crowned and polished top surface of the blade will not mar the inside surface of the hole.

Supporting a simple method for easily adjustable cutting pressure, the corresponding adjustment screws, will match according to the tool as covered by our imperial (inch) and metric programs.

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 sub-surface material. The result is a mirror-like finish and a tough, work-hardened surface with load-carrying characteristics that are superior to finishes obtained by abrasive metal-removal methods.

A roller burnished surface is smoother and more wear-resistant than an abraded surface of the same profilometer reading. Profilometers measure roughness height. Abrasive finishing processes remove metal by cutting or tearing it away, and while this usually lowers the roughness profile, it leaves sharp projections in the contact plane of the machined surface.

Roller burnishing displaces metal, rather than removing it. Material in microscopic “peaks” on the machined surface is caused to cold flow into the “valleys,” creating a plateau-like profile in which sharpness is reduced or eliminated in the contact plane. A burnished surface is therefore smoother than an abraded surface with the same roughness height measurement. The burnished surface will last longer under working conditions in contact with a mating part.

For more information on our extensive range of tooling, please visit our website