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Through the use of an environmentally safe powder additive that is mixed with the dielectric fluid, Diffused Discharge Machining (DDM) technology improves electrical conductivity for more consistent discharging and spark diffusion.

Injection-molded components are only as good as the molds Mold halves that don’t mate together cleanly, pins that don’t align, and mold locks that scrape and bind result in scrapped parts and millions in lost revenue. Klaus Wieder understands these problems all too well, and if he has his...

A V22 equipped with a 0.050 mm diameter drill was used to machine 61 individual 0.002 in. micro holes into a flat 0.020 in. thick 303 stainless steel plate._x000D_ _x000D_ To reduce tooling runout, a high precision collet holder assembly featuring a BIG "Mega Micro" collet chuck, BIG "micro"...

Moldmakers and machine shops are constantly searching for ways to drive costs out of their manufacturing process. When they find a worthwhile technique that saves time and money, moldmakers are often reluctant to share their "secret" so they can maintain a competitive edge.
 

Form Grinding wanted a better way to create the carbide inserts it used for cold extrusion forming in steel dies. The grinding wheel process they used to dimensionalize the carbide was slow and inefficient, and working with carbide on a grinding wheel is an untidy process. Plus it was costly, as the...

Producing fine finishes on EDMed surfaces has long been a goal, especially for mold and die shops that operate ram-type electrical discharge machines. Lately, there has been renewed interest in using additives in the dielectric oil to achieve ultra fine finishes with graphite electrodes without excessive...

Two years ago, Gerg Tool & Die (St. Marys, PA), which specializes in dies and tooling for the powdered metal industry, was looking for an EDM sinker machine for a specific part. The company had tried to use its existing equipment to manufacture this part, but was having difficulty achieving the accuracy...