tungsten alloy machining

Model No.: JDTG-CM-056

Brand: ZZJD

Place Of Origin: China

Material: Tungsten

Density: 18.10±0.15g/cm³

Color: Natural

Size: Support customization

Tungsten Alloy Mechanical & Electrical Components – High-Performance Solutions

Tungsten heavy alloys (WNiFe, WNiCu, WMo, WC-Co) are widely used in precision mechanical and electrical applications due to their exceptional density, strength, and thermal/electrical properties. Below is a detailed breakdown of their uses, benefits, and manufacturing considerations.

Key Properties for Mechanical & Electrical Applications

Property Advantage Typical Alloys

High Density (17–19 g/cm³) Ideal for counterweights, vibration damping WNiFe, WNiCu

High Hardness (HRA 80–92) Wear-resistant bearings, nozzles, cutting tools WC-Co

Excellent Thermal Conductivity (~110 W/mK) Heat sinks, electrical contacts WCu

Low Thermal Expansion (~4.5 µm/m°C) Stable in high-precision instruments WNiFe

Non-Magnetic MRI-compatible, semiconductor equipment WNiFe

High Melting Point (~3,400°C) Rocket nozzles, plasma electrodes WMo, WCu

Mechanical Applications

1. Counterweights & Balancing Components

Aerospace: Rotor blades, flight control surfaces

Automotive: Crankshafts, flywheels, luxury car damping

Industrial: CNC machinery, robotic arms

2. Wear-Resistant Parts

Bearings & Bushings (WC-Co) – High-load, low-lubrication environments

Valve Balls & Seats – Corrosion-resistant for oil/gas industry

Nozzles & Erosion Shields – Sandblasting, thermal spray coatings

3. High-Strength Fasteners

Tungsten alloy screws, bolts – Used in extreme environments (nuclear, deep-sea)

Electrical & Electronic Applications

1. Electrical Contacts & Electrodes

High-voltage switches (WCu) – Arc-resistant, high conductivity

Resistance welding electrodes – Long lifespan vs. copper

Semiconductor wafer chucks – Non-magnetic, thermal stability

2. Heat Sinks & Thermal Management

WCu (70/30 or 80/20) – Used in laser diodes, power electronics

Microchannel coolers – Efficient heat dissipation in high-power RF devices

3. Radiation Shielding (Electrical Enclosures)

X-ray tubes, CT scanners – Tungsten housings block stray radiation

Nuclear instrumentation – Neutron-absorbing components

Manufacturing Methods

Process Best For Tolerances

Powder Metallurgy (PM) Near-net-shape parts (gears, weights) ±0.1mm

CNC Machining Precision components (electrodes, fasteners) ±0.01mm

EDM (Wire/Sinker) Complex geometries (micro-nozzles) ±0.005mm

Grinding/Polishing Mirror finishes (optical components) Ra <0.1µm

Tungsten Alloy Selection Guide

Application Recommended Alloy Key Reason

Counterweights WNiFe (93% W) High density, machinable

Electrical Contacts WCu (70/30) High conductivity, arc resistance

Cutting Tools WC-6%Co Extreme hardness

Radiation Shielding WNiCr Neutron absorption

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