EDM
EDM vs. Milling In Die/Mold Machining
In many die and mold shops, the choice between ram EDM and CNC milling is far less clear than it used to be. Changing technology is changing the rules.
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Silicon Powder Additives Proven Safe And Effective In EDM
As with any new EDM innovation, the effectiveness of various powder finish processes will be debated. Likewise, dual-tank systems will be compared to single-tank systems. Here's a viable answer to that debate.
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Trends In EDM
Electrical discharge machines, both wire and ram type, have undergone rapid improvements in capability, economical operation, speed and flexibility. New applications are continually emerging as shops discover the advantages of this process.
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The Case For Additive Technology In EDM
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 burn times.
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Methods' Revamped Lineup Features Advanced Technology
“Smart” machine tools. Spindles reaching 60,000 rpm. Affordable robots for load/unload.
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High-Precision Mold Shop Cuts EDM Machining Time By 40 Percent
Finally tiring of the tedious cutting times, marginal finishes and excessive secondary operations coupled with automatic wire feeder problems, this mold shop owner sought-and found-an alternative.
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Fine Wire Is Just Fine
As parts get smaller and smaller, using EDM wire as small as 0.001 inch in diameter to cut these workpieces becomes an attractive option—actually, the only option.
Read MoreUnattended, Short-Run Production Work Spurs EDM Shop's Growth, Productivity
The move into shortrun production projects is changing Advanced Machining's product mix, and Bobby Miller, Advanced's other co-owner, says it's good to be making this transition. The shop continues to receive custom, oneofakind jobs, but it's also garnering an increasing number of productiontype jobs that demand attention only until the first successful production parts come off. The latter situation is attractive, Mr. Miller explains, because at this point, it's just a matter of letting the machine run to process the parts.
Read MoreLinear Motor Brings Accuracy to EDMing of Deep Ribs
A ram electrical discharge machine may not be the place most observers would expect to see a high-speed linear motor. Linear motors seem more appropriate for the axis drives of milling machines, where high feed rates complement high spindle speeds in high performance machining. But high performance is a goal for EDM builders as well.
Read MoreNew Wire EDM System Enhances Mold Maker's Capabilities
When Osley and Whitney, Inc. (Westfield, Massachusetts) decided to upgrade its wire EDM (electrical discharge machining) capabilities, the company had several problems it wanted to solve. Osley and Whitney, a 48-year-old plastic injection moldbuilding company with 68 employees, serves automotive, automotive aftermarket, consumer, sporting goods and office machine companies.
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