Guides
Engineering notes for tungsten copper buyers
Selection logic, material comparisons and application know-how from the factory floor. Written for the people who specify and buy electrodes — not for search engines.
Buying guide
How to Buy Tungsten Copper Rods and Blocks
A buyer checklist for CuW rod and block: grade, stock form, dimensions, surface condition, machining scope, quantity, and inspection records.
November 5, 2026 · Read guide →
Material selection
Copper Molybdenum Electrodes: What CuMo Is and When W/Cu Wins
CuMo and W/Cu are copper-infiltrated refractory composites, but not interchangeable. A property comparison for EDM, welding and thermal work.
November 4, 2026 · Read guide →
Buying guide
How to Specify Threaded Tungsten Copper Electrodes
An RFQ checklist for threaded W/Cu electrodes: alloy, thread form, shank, seating, cooling, face geometry, inspection, and repeat-order control.
November 2, 2026 · Read guide →
Material selection
Copper Tungsten CTE and Thermal Expansion Guide
How tungsten copper CTE affects thermal cycling, electrode stability, joint matching, and the directional choice between W/Cu 75/25 and 70/30.
October 29, 2026 · Read guide →
Application guide
Seam Welding Wheel Slip and Uneven Wear: Causes and Fixes
Single-side wear, grooving, chatter and strip slip are not wheel-quality problems. How to read abnormal seam wheel wear and fix the machine fault behind it.
October 18, 2026 · Read guide →
Manufacturing process
How Tungsten Copper Is Made: The Infiltration Process Explained
Tungsten and copper cannot be melted together, so every CuW electrode starts as a pressed tungsten skeleton infiltrated with molten copper. How it works.
October 18, 2026 · Read guide →
Application guide
Seam Welding Electrodes for Galvanized & Coated Steel: The Zinc Pickup Problem
Zinc alloys into soft electrode wheels, glazes the face and sticks to the strip. How tungsten copper resists coating pickup, and how to spec wheels for it.
October 17, 2026 · Read guide →
Application guide
EDM Electrode Material Selection: Where Tungsten Copper Fits
Graphite roughs fast, copper conducts, but both fail at fine detail and low wear. Where tungsten copper electrodes earn their place in die-sinking EDM.
October 17, 2026 · Read guide →
Application guide
Electrode Wheel Bore Tolerance (H7) and Runout (0.02 mm): Why They Matter
H7 bore and 0.02 mm runout are the two numbers that decide whether a replacement seam welding wheel drops onto your shaft and welds — or costs you a shift.
October 17, 2026 · Read guide →
Application guide
Seam Welding Wheel Profiles: Flat, Bevel, R and Knurled Faces Explained
Profile choice drives seam consistency more than alloy choice does. When to cut flat, single or double bevel, R profile, or knurled faces — and how each wears.
October 17, 2026 · Read guide →
Buying guide
How to Order Custom Tungsten Copper Electrode Wheels: From Drawing to Delivery
A purchasing guide for custom W/Cu electrode wheels: what to send with your RFQ, how quoting works, real lead times, and trade terms to confirm before ordering.
October 17, 2026 · Read guide →
Material selection
Resistance Welding Electrode Alloys Compared: CrZr Copper, BeCu and Tungsten Copper
Where chromium-zirconium copper, beryllium copper and tungsten copper each belong in resistance welding: failure modes, substitution limits, grade choice.
October 17, 2026 · Read guide →
Material selection
RWMA Electrode Classes Explained: A Buyer's Guide
RWMA classes sort electrode materials from hard coppers to refractory composites. Where tungsten copper fits (Class 10 and 11) and how buyers should use them.
October 17, 2026 · Read guide →
Application guide
Seam Welding Wheel Wear Cycles and a Spare Strategy That Fits
Wheels are consumed on a wear cycle, but your spare shelf does not need a full set. How to set reorder triggers and stock one spare per station instead of ten.
October 17, 2026 · Read guide →
Technical guide
Machining Tungsten Copper: Practical Guidelines for Threads, Holes and Finished Parts
How infiltrated W/Cu actually machines: cutting characteristics, tooling choices, threading and small-hole practice, and when to buy finished parts not blanks.
October 17, 2026 · Read guide →
Material selection
Copper Tungsten Thermal Conductivity and Heat Sink Grades
Copper tungsten thermal conductivity and CTE by grade, which W/Cu composition fits each heat-sink duty, and where the supply range stops at 80% tungsten.
October 17, 2026 · Read guide →
Material selection
Tungsten Copper Properties and Density by Grade (W90–W50)
Density, conductivity and hardness for copper tungsten grades from W90Cu10 to W50Cu50, the density band each grade should read, and how to tell porosity from a copper-rich billet.
October 17, 2026 · Read guide →
Material selection
Tungsten Copper vs Beryllium Copper: Performance Plus a Risk You Should Price In
Beryllium copper is strong but its dust is a regulated carcinogen. Tungsten copper gives similar wear life without the hazardous-material overhead.
October 17, 2026 · Read guide →
Material selection
Tungsten Copper vs Chromium Copper Electrodes: When to Make the Switch
Chromium copper conducts better but softens under heat and force. Tungsten copper wears slower and resists coating pickup. When does upgrading to CuW pay?
October 17, 2026 · Read guide →
Material selection
Tungsten Copper vs Molybdenum EDM Electrodes: Choosing the Right Refractory
Molybdenum survives extreme heat; tungsten copper holds detail, machines easily and burns with low wear. An EDM electrode selection guide for die shops.
October 17, 2026 · Read guide →
Quality guide
Incoming Inspection Checklist for Tungsten Copper Electrodes: A Buyer's Guide
What to check when W/Cu electrodes arrive: density, conductivity, runout, bore and profile, the paperwork to demand, and which rejections are worth raising.
October 17, 2026 · Read guide →
Material selection
W75Cu25 vs W70Cu30 for Resistance Welding
W75Cu25 trades conductivity for hardness and flash-resistance; W70Cu30 trades hardness for conductivity. A practical selection guide for seam welding wheels, spot electrodes and projection welding dies.
October 16, 2026 · Read guide →
Material selection
Tungsten Copper vs Pure Tungsten Electrodes: Where CuW Earns Its Keep
Pure tungsten survives heat but conducts poorly and cracks under thermal cycling. Tungsten copper sacrifices a little refractoriness for far better conductivity and cooling. Here is where each material belongs.
October 16, 2026 · Read guide →
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