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Rulon Bearings

Mi-Tech Metals SW74 26 Silver/74 Tungsten PM Metal Composite
Categories: Metal; Metal Matrix Composite; Nonferrous Metal; Precious Metal; Silver Alloy; Refractory Metal; Tungsten Alloy

Material Notes: RWMA Class EDM

Mi-Tech Copper-Tungsten and Silver-Tungsten are manufactured as electrode materials for EDM (Electrical Discharge Machining), ECM (Electro Chemical Machining) and ECD (Electro Chemical Deburring).

Mi-Tech materials are also manufactured by the powder metallurgy techniques of pressing, sintering and infiltrating tungsten with copper or silver. This assures a high performance electrode providing greater cutting stability, excellent machinability and reduced down time. For extremely close tolerance work, this product holds dimensions and will not break down due to porosity and other structural deficiencies sometimes found in other Copper-Tungsten electrode alloys.

Mi-Tech Copper-Tungsten is well suited for machining carbide dies. Further more, it offers greater cutting stability in machining refractory metals and exotics.

Tungsten alloys used for EDM and ECM applications are far superior when fine surface finishes, deep narrow slots or ribs and small precise holes are required. Tungsten alloys are preferred when matching extremely detailed sections. In the ECM process, Copper-Tungsten withstands erosive effects of short circuit malfunctions far better than other materials.

Data provided by Mi-Tech Metals.

Key Words: Powder Metallurgy Metal Composite; Tungsten Alloys, Silver Alloys
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Physical PropertiesMetricEnglishComments
Density >= 15.1 g/cc>= 0.546 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell B 8787
Tensile Strength, Ultimate 483 MPa70100 psi
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.00000340 ohm-cm0.00000340 ohm-cm
 
Component Elements PropertiesMetricEnglishComments
Silver, Ag 26 %26 %
Tungsten, W 74 %74 %

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NMITECH02 / 18412

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