Grinding

Walter Helitronic Raptor Diamond

Developed especially for the re-sharpening and production of rotationally symmetrical PCD tools, the Walter Helitronic Raptor Diamond is particularly well-suited for shops that do not require features such as automatic tool support systems or automatic grinding wheel/electrode changers, but still need a high degree of flexibility in the working area for diverse types of tools. This ensures that manufacturers have access to Walter quality with exactly the features they need for part-production and re-sharpening success.

Chatter Chat

In the 100th episode of CTE's Grinding Doc video series, Dr. Jeffrey Badger discusses his least favorite subject—chatter.

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.

Walter Helitronic Raptor Tool Grinding Machine

The new Walter Helitronic Raptor from United Grinding Group is a flexible, cost-effective tool grinding machine. Created for the grinding and re-sharpening of rotationally symmetrical tools for the metal and wood industries, the new Helitronic Raptor offers both automation-ready flexibility and an economical, universal design.

PG-9BHD Centerless Form Grinder

Glebar Co. delivered a solution for grinding deodorant balls while reducing cycle times and improving throughput. Glebar developed ball grinding for the golf ball industry in the 1960s using centerless grinding fundamentals. The process was adapted to grind deodorant balls and other spherical or cylindrically shaped components. Glebar machines can grind most hard-to-turn materials such as carbon fiber, fiberglass and polypropylene.

6S and 6L Grinding Machine Series

New linear motors and well proven hydrostatic guides in the 6S and 6L grinding machine series open up new potential. Higher speeds, various detailed improvements and optimized ease of maintenance result in shorter cycle times, maximized quality and cost savings. The expanded modular concept for the table assemblies makes the platform 6 grinding machines more flexible and adaptable.

Are grinding machine safety guards overdesigned?

Guards on grinding machines are particularly important for ensuring operator safety. Grinding wheels seldom burst, but when they do, there is a great risk of serious injury to the machine operator. Recent studies suggest, however, that the enclosures commonly used in gear grinding machines, for example, could be overdesigned at present. Investigations conducted by the VDW (Verein Deutscher Werkzeugmaschinenfabriken – German Machine Tool Builders' Association) and the Institute of Machine Tools and Factory Management (IWF) at TU Berlin reveal that it is possible to use safety guards which are up to 70% thinner, depending on the width of the grinding wheel. These findings are leading to changes in ISO standardization.

JUMAT 6L 40-30 Grinding Machine

Junker demonstrates its pioneering spirit to use complete machining in rotor production. The JUMAT 6L 40-30 grinding machine works on complex workpiece geometries for rotor pairs in profile and Quickpoint machining in a single clamping process.

United Grinding North America partners with Dynamic Machine

United Grinding North America Inc., Miamisburg, Ohio, announced it has entered into a partnership with Dynamic Machine of Detroit, a Troy, Michigan-based CNC equipment dealership. For those United Grinding North America customers in the Michigan territory, the partnership will further strengthen grinding machine sales, service and application support.

DIT 716 Series Diamond Dressing Tool

Many years ago, the Super 716 Series diamond tool was made for dressing large and wide precision grinding wheels on centerless, cylindrical and surface precision grinding machines. They were made to minimize glazing and the closing up of the wheel surface. They were also made to carry the large wheel without taper or the crushing of the bond. It worked better than any other grit or impregnated dressing tool.

Norton Stellar Inserted-Nut Grinding Wheels

Saint-Gobain Abrasives announced the introduction of its new Norton Stellar inserted-nut grinding wheels for double- and single-disc grinding that offer improved wheel life, increased parts per wheel and lower cost per part. The new grinding wheels are suitable for a wide range of industries including automotive, bearing, tool manufacturing, compressors, knife blades and job shop and general machining.