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Grinding

Get groning

10/01/2012
Author:
Alan Richter
This Look Ahead item features a CNC gear honing machine that uses a honing wheel with external teeth and reduces the number of process stages.
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Small tools, big challenges

04/01/2016
END USER: Greene Tool Systems Inc., (800) BUY-TOOL, www.greenetool.com. SOLUTION PROVIDER: ANCA Inc., (248) 926-4466, www.anca.com. CHALLENGE: Produce microscale cutting tools more accurately while lowering setup times. SOLUTION: Two grinding machines designed to produce tools smaller than 2mm in diameter that feature robotic arms for loading and unloading tools and wheel packs.
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The madness of wheel trials

04/01/2016
Author:
Jeffrey A. Badger, Ph.D.
Dear Doc: I sell grinding wheels and frequently find myself pulling my hair out when recommending wheels to customers. One customer achieved great success with a resin-bond, 400-mesh diamond wheel when grinding ¾"-dia. carbide endmills. It performed like a “superwheel.” I then took that same wheel to a customer who also grinds ¾” carbide endmills on the same machine model with the same coolant and it’s a disaster. Why?
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Tech swap

Part of CTE's October cover story, this video sidebar follows tool grinder Jim Clark as he employs the ANCA CNC toolgrinding machine at Hamill Manufacturing to create custom geometry onan endmill for a military application.

Multitasking video

A Studer brand S242 machine, which combines hard milling and grinding, is shown hard milling a toolholder without coolant, then grinding the holder's taper with coolant to achieve the required surface finish. This video is a supplement to the January 2010 Cutting Tool Engineering feature—"Finish Line"—about finishing hardened workpieces on multitasking machines.