When Covid-19 hit and the UK Government issued a rallying call for manufacturers to step up and aid with the production of ventilators, specialist precision toolmaker Cogsdill was on hand to deliver.
International sales manager Neil Yewman commented: “With many of our customers making personal sacrifices, altering shift patterns and working many long hours, it was clear that everyone needed to pull together to meet the challenge.
“We are delighted to be a part of the huge effort delivered by UK manufacturing companies. Many of the ventilator component drawings released for the manufacture of critical parts have specified features which require a surface finish to be, either specifically roller burnished or with a surface finish requirement of 0.2Ra, which is typically a roller burnished finish.
“As a global leader in the development and manufacture of hole finishing tooling – deburring, burnishing, reaming, recessing, modular boring and facing heads – we’re able to call on our vast industry experience to provide the right solution.”
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. Also, most components have difficult to reach cross holes which required Cogsdill Burraway or burr off tools in order to be deburred.
The company has increased inventory levels on roller burnishing and deburring tools and has plenty of stock available for next day delivery, thus ensuring the supply of critical parts is maintained.