Grinding

Cooling OD burn

06/25/2019

Author:

The Grinding Doc: Using a wheel with too large of a grit size and dressing dull likely the cause of OD burn—not bad cooling.

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Episode 95: Dressing driving you mad? (part 2)

In the second of this two-episode Grinding Doc report, Dr. Jeffrey Badger runs a few numbers to determine a suitable overlap ratio.

About Jeffrey Badger, Ph.D., and the Grinding Doc Video Series: Thanks to his work as an independent grinding consultant and the author of the "Ask the Grinding Doc" column in Cutting Tool Engineering magazine, Badger routinely receives questions about grinding from shops all over the world. Through the magazine column and this video series, he provides shops with the insight and guidance they seek.

Grinding Machines Integrate Eroding and/or Grinding Capabilities

Based on a highly efficient and productive two-in-one concept, Walter Helitronic Vision Diamond 400 L, Helitronic Power Diamond 400 and Helitronic Diamond Evolution tool grinding machines, from United Grinding North America Inc., integrate both eroding and/or grinding capabilities into single grinding machine platforms. From a production standpoint, the two-in-one concept lets users completely erode tools (PCD) and completely grind tools (carbide) using the same machine to eliminate the time-consuming task of moving workpieces to a second machine.

Electric Hand Grinders

The unique shape of Palmgren’s electric hand grinders provide exceptional control with less operator fatigue.

Episode 94: Dressing driving you mad?

In part one of this report, the Grinding Doc acknowledges how maddening dressing can be when diamonds wear away and develop larger and larger flat areas.

Studer S31 & S33 unveiling in the Alps

The marketing folks at Fritz Studer AG, Thun, Switzerland, understand the importance of having a distinctive, eye-catching location for introducing grinding machines. In March, they selected the Hagerbach Test Gallery in the canton of Graubünden in Switzerland to host the Studer Press Event 2019. The gallery was founded as an R&D facility for underground mining tunnel construction, but the subterranean setting has been the location of numerous seminars, parties, concerts and product presentations.

Witness the experience for yourself as captured by CTE Editor Alan Richter.

3M Precision Structured Vitrified CBN Grinding Wheel 1PVP

ST. PAUL‚ Minn. – (April 26, 2019) – Specifically designed abrasive tools require tight wheels, geometry, and tolerance for mass production.

S33 and the S31 Grinding Machines

Fritz Studer AG has introduced the S33 and the S31 machines, now with four distances between centers of 400, 650, 1000 and 1600 mm. The distances between centers of 400 mm and 1600 mm complete the portfolio for long and short workpieces.

CPX Linear: Blank preparation grinder

Capable of achieving a surface finish better than 0.2 R_a with run out of less than 2 microns, this four axes grinder for grinding tool blanks complements ANCA's full machine range. The CPX Linear has a large working envelope and powerful grinding spindles to achieve the highest precision and productivity for blank preparation in the market today. Using the pinch peel method of grinding, it offers the same strength, rigidity and thermal stability expected from an ANCA tool grinder.

The NXT Tool Grinder machine from Star

Cutting Tool Engineering recently visited the Star plant in Elk Rapids, Michigan, to learn more about Star SU's new NXT Tool Grinder machine, which made its debut at IMTS 2018. CTE Publisher Dennis Spaeth chats with Star Product Manager Aaron Remsing, Director of Engineering Roberta Wagner, Plant Manager Jason Walter, and Applications Engineer Jeremy Hubbard.

Learn more about the engineering process that went into developing the NXT in the latest Star SU Blog.