Grinding

3M hosts grinding and tool technology seminar

Historically, the round tool cutting industry hasn’t offered many educational events to customers for collaboration. 3M is on a mission to change that.

Wear mechanics of cylindrical grinding wheels

We all know that as grinding wheels wear and get smaller, they eventually stub out, requiring replacement. But what really happens as they wear? Does performance change? Do wheels act or behave differently as they wear? Do we need to change the grinding or dress parameters throughout whel life to compensate for these changes?

Episode 84: Defining truing parameters

For the 84th episode of Cutting Tool Engineering's Grinding Doc video series, Dr. Jeffrey Badger offers some preliminary results and observations from his work with Rush Machinery in Rushville, N.Y., to establish scientific truing parameters.

If you missed part one of this series, you can view the 83rd episode of the Grinding Doc video series here.

Moving to lights-out cutting tool production

Jet Tool & Cutter launched in 1968 as a small cutter regrind shop, taking orders on paper and mailing quotes back to the customer. Since then, the bustling, growing firm has worked out the solution that allows it to quickly produce a wide variety of high-quality carbide cutting tools for aerospace, firearms and general machining applications. Its solution allows the shop to meet tightening customer demands for quality and quick delivery while facing a shrinking pool of available skilled hands.

Episode 83: Defining truing parameters

For the 83rd episode of Cutting Tool Engineering's Grinding Doc video series, Dr. Jeffrey Badger visits with Rush Machinery in Rushville, N.Y., to begin a three-part series devoted to establishing scientific truing parameters. With the help of Rush Machinery President Bill Freese, Badger conducts a series of truing tests using his Grinding Doc Grindometer.

Part two of this series can be viewed here.

Swarf is telling you something

08/29/2017

Author:

Harry G. Sachsel

Swarf, which is the result of particles being removed when grinding hard or difficult-to-machine materials, tells a story.

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Episode 82: Barkhausen noise review

For the 82nd episode of Cutting Tool Engineering's Grinding Doc video series, Dr. Jeffrey Badger explains why using the Barkhausen Noise Signal to assess grinding burn is a tricky business.

Episode 81: Diagnosing shoulder pain

Dr. Jeffrey Badger examines why many shops experience pain when cylindrical grinding a face, or shoulder, in the 81st episode of the Ask the Grinding Doc video series, which is produced in collaboration with Cutting Tool Engineering.

Rollomatic unveils solutions for Industry 4.0

Everyone’s talking about it – the fourth industrial revolution. Rollomatic S.A., based in Le Landeron, Switzerland, is one of the companies setting a course for an interconnected future for machinery. After all, although precision is still a top priority for Rollomatic customers, aspects such as monitoring of machinery and production processes from anywhere in the world are growing more important by the day.

Factors affecting proper coolant application when grinding

08/11/2017

Author:

John A. Webster, Ph.D.

Grinding is a thermally dominated process, meaning a high percentage of process heat initially enters the part before coolant quenches it. Unless the coolant is applied at the correct flow rate and pressure, and the proper input conditions are selected, this process can lead to undesirable rehardening burn, thermal softening and tensile residual stresses.

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