4 verified machine shops in San Jose, CA do sinker EDM; each fact below links to the sentence on the shop's own site.
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Sinker (ram) EDM burns a shaped electrode into hardened metal to make cavities, blind pockets and features a cutter cannot reach — common in mold and die work.
Ask what electrode materials they use, the surface finish they can burn, and lead time for electrode fabrication. Cavity depth and corner radii drive the cost.
Each shop's verified sinker edm fact is quoted from its own website; open the shop for every other capability on record.
EDM wire sinker source
Sinker EDM Model AL40G source
Sinker EDM source
We utilize wire and sinker EDM for features that require extreme precision or involve hardened materials. source
All machine shops in San Jose · Sinker EDM machine shops in California · Wire EDM in San Jose · Tool and die in San Jose