Wire and electrical discharge machining
Wire and electrical discharge machining
Wire and electrical discharge machining
Cutting without applying physical force produces complex geometries even in brittle materials.
Cutting without applying physical force produces complex geometries even in brittle materials.
Cutting without applying physical force produces complex geometries even in brittle materials.
OVERVIEW
Tungsten is itself a conductor, so EDM works well on it. We use it to machine complex geometries and deep grooves that a cutting tool cannot easily reach.
Tungsten is itself a conductor, so EDM works well on it. We use it to machine complex geometries and deep grooves that a cutting tool cannot easily reach.
Tungsten is itself a conductor, so EDM works well on it. We use it to machine complex geometries and deep grooves that a cutting tool cannot easily reach.
Wire EDM, which cuts with a fine wire, is especially accurate for through holes. No physical force is applied, so there is little risk of micro-cracking or breakage in tungsten.
Wire EDM, which cuts with a fine wire, is especially accurate for through holes. No physical force is applied, so there is little risk of micro-cracking or breakage in tungsten.
Wire EDM, which cuts with a fine wire, is especially accurate for through holes. No physical force is applied, so there is little risk of micro-cracking or breakage in tungsten.
Equipment
Through features · fine slits
Through features · fine slits
Through features · fine slits
SCOPE
Scope
01
01
Wire EDM
Wire EDM
Wire EDM
Cuts with a fine wire to produce through features.
Cuts with a fine wire to produce through features.
Cuts with a fine wire to produce through features.
02
02
Sinker EDM
Sinker EDM
Sinker EDM
Sinks in to the exact shape of the electrode.
Sinks in to the exact shape of the electrode.
Sinks in to the exact shape of the electrode.
03
03
Fine through holes
Fine through holes
Fine through holes
Produces small holes a tool cannot reach.
Produces small holes a tool cannot reach.
Produces small holes a tool cannot reach.
04
04
Tungsten electrodes for EDM
Tungsten electrodes for EDM
Tungsten electrodes for EDM
We also make the electrodes used in EDM itself.
We also make the electrodes used in EDM itself.
We also make the electrodes used in EDM itself.
CASE
Wire and EDM machining examples
Parts we made by EDM and delivered.
Parts we made by EDM and delivered.
Parts we made by EDM and delivered.
CASE 01
A tungsten electrode for battery terminal welding
A tungsten electrode for battery terminal welding
Wire EDM → cleaning and finishing → inspection and packing
Wire EDM → cleaning and finishing → inspection and packing
A high-purity tungsten electrode used in welding automotive battery terminals. It was wire EDM machined with copper wire under water, and after coming off the machine the electrode was cleaned, finished, inspected, packed and delivered.
A high-purity tungsten electrode used in welding automotive battery terminals. It was wire EDM machined with copper wire under water, and after coming off the machine the electrode was cleaned, finished, inspected, packed and delivered.
A high-purity tungsten electrode used in welding automotive battery terminals. It was wire EDM machined with copper wire under water, and after coming off the machine the electrode was cleaned, finished, inspected, packed and delivered.
CASE 02
A high-purity molybdenum precision pin
A high-purity molybdenum precision pin
Turning → forming and EDM → polishing and cleaning
Turning → forming and EDM → polishing and cleaning
A fine part, very thin, that has to hold a consistent curvature and straightness. We set the outside diameter by turning, then matched the fine geometry and the end step uniformly by forming and EDM. After ultrasonic cleaning it was vacuum packed with silica gel.
A fine part, very thin, that has to hold a consistent curvature and straightness. We set the outside diameter by turning, then matched the fine geometry and the end step uniformly by forming and EDM. After ultrasonic cleaning it was vacuum packed with silica gel.
A fine part, very thin, that has to hold a consistent curvature and straightness. We set the outside diameter by turning, then matched the fine geometry and the end step uniformly by forming and EDM. After ultrasonic cleaning it was vacuum packed with silica gel.
Advanced material supply and machining,
a global material leader
From raw material to finished part, the best solution seen from your side.
Weekdays 9:00 AM – 5:30 PM (alternate Fridays until 4:00 PM; closed weekends and public holidays)
Advanced material supply and machining,
a global material leader
From raw material to finished part, the best solution seen from your side.
Weekdays 9:00 AM – 5:30 PM (alternate Fridays until 4:00 PM; closed weekends and public holidays)
KOREA TUNGSTEN CO.,LTD
KOREA TUNGSTEN CO.,LTD
Refractory metal supply and ultra-precision machining — core materials for semiconductor, display, defense, space, medical & radiation.
INNOMT LLC
INNOMT CO.,LTD
Korea Tungsten's official overseas division
Key industries served
Customer support
© 2026 Korea Tungsten Co., Ltd. All rights reserved. 83 Bideukbawi-gil, Jori-eup, Paju-si, Gyeonggi-do 10949, Korea (364-2 Osan-ri) +82-31-975-1717
© 2026 INNOMT Co., Ltd. All rights reserved. Unit A-1710, IS Biz Tower Hangang 3, 50 Eutteum-ro, Deogyang-gu, Goyang-si, Gyeonggi-do 10543, Korea +82-2-6408-4239
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KOREA TUNGSTEN CO.,LTD
KOREA TUNGSTEN CO.,LTD
Refractory metal supply and ultra-precision machining — core materials for semiconductor, display, defense, space, medical & radiation.
INNOMT LLC
INNOMT CO.,LTD
Korea Tungsten's official overseas division
Key industries served
Customer support
© 2026 Korea Tungsten Co., Ltd. All rights reserved. 83 Bideukbawi-gil, Jori-eup, Paju-si, Gyeonggi-do 10949, Korea (364-2 Osan-ri) +82-31-975-1717
© 2026 INNOMT Co., Ltd. All rights reserved. Unit A-1710, IS Biz Tower Hangang 3, 50 Eutteum-ro, Deogyang-gu, Goyang-si, Gyeonggi-do 10543, Korea +82-2-6408-4239
Privacy Policy
Terms of Use
Cookie settings
KOREA TUNGSTEN CO.,LTD
KOREA TUNGSTEN CO.,LTD
Refractory metal supply and ultra-precision machining — core materials for semiconductor, display, defense, space, medical & radiation.
INNOMT LLC
INNOMT CO.,LTD
Korea Tungsten's official overseas division
Key industries served
Customer support
© 2026 Korea Tungsten Co., Ltd. All rights reserved. 83 Bideukbawi-gil, Jori-eup, Paju-si, Gyeonggi-do 10949, Korea (364-2 Osan-ri) +82-31-975-1717
© 2026 INNOMT Co., Ltd. All rights reserved. Unit A-1710, IS Biz Tower Hangang 3, 50 Eutteum-ro, Deogyang-gu, Goyang-si, Gyeonggi-do 10543, Korea +82-2-6408-4239
Privacy Policy
Terms of Use
Cookie settings