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Technical advancements in Deburring over the past 100 years.

6/19/2019

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A short history about deburring from E-Z Burr.
EZ Burr back deburring
Burrs may be the last concern that an engineer or machinist wants to think about in designing a new part focusing on tolerances and production rate. However, the problem remains and calls for attention to develop a quality product. It was nearly a century ago that a solution was discovered and the first deburring tool went to market.
The first machine driven deburring tool patent was filed in 1911 by F.A. Pica patent # 1,008,363. The original tool was an adaptation of a boring bit to accommodate a countersink portion on the backside of the hole.

To set or activate the deburring process was a laboring process. After boring each hole the machinist must stop the spindle, move a mechanism to engage the deburring insert, start the spindle to begin the deburring process and then again, stop the spindle and disengage the insert and retract.

The size and consistency of the countersink was somewhat guesswork at the time, but ultimately did the job.
F.A. Pica patent #1,008,363
A Fried US patent 2314084
In 1943 hole deburring saw the first dramatic update when A. Fried separated the boring and deburring process with patent # 2,314,084.

This helped to achieve a higher quality and accommodate the higher production volumes of the day.

This improved the machining process which could be set to perform desired deburring operations.

But with this tool the cutter still had to be projected and retracted by hand which still made it labor intensive.
The onset of 1950’s led to many updates in deburring leading up to the high volume production requirements of today.

It was in 1952 when the most notable change was by S.A. Cogsdill. He eliminated the hand operated deburring process and provided an adjustable tool with his patent # 2,620,689. This tool can be set to perform desired chamfer sizes and is activated by a spring and plunger, taking the hand operation out of the process.

With this improvement, deburring became an automated process.
Cogsdill US Patent deburring 3132543A
EZ Burr small Hole Deburring
Today’s tools offer many solutions to accommodate the many varieties of applications and materials. Looking at the technical aspects of each application, material and individual customer’s goals, E-Z Burr has taken the process of deburring to the next level.

Since 1960, E-Z Burr has been providing innovative and versatile deburring solutions for customers. Over the last 5 years they have introduced and expanded their Carbide Series of deburring tools to produce successful results on hard to machine materials and higher production volumes. “From the very start, our goal has been to provide tools that are durable, dependable, easy to use and maintain, while offering our customers a fair and reasonable price,” says Bill Robinson, President of E-Z-Burr. “We are always looking for new, innovative ways to meet the needs of our customers.”
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  • Home
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