- Oct 18, 2026
Copper Mold Inserts for Injection Molding: Cooling Gains
Copper alloy inserts pull heat out of mold hot spots that steel cannot. Which alloys are used, their wear limits, fit and plating, and what to put on the RFQ.
- Oct 17, 2026
Copper Induction Coils and Inductor Parts: Machining Specs
Induction coils are water-cooled copper conductors shaped to a part. How skin depth sets the wall, how channels and joints are made and what to specify.
- Oct 15, 2026
Copper Cold Plate Machining: Channels, Sealing, Joining
A copper cold plate is a plate with a milled fluid path and a sealed lid. Channel limits, lid options, burr control, leak testing and what to put on the RFQ.
- Sep 26, 2026
Busbar Bolted Joints: Contact Area, Plating and Torque
A bolted busbar joint conducts through a small fraction of its face. Flatness, finish, plating, washer stack and torque decide whether it stays cool over time.
- Sep 26, 2026
Leak Testing a Copper Cold Plate: Tests and RFQ Lines
Pressure decay, helium and bubble tests compared, what a leak rate means, who performs it and the RFQ lines that keep a brazed copper part from being scrapped.
- Sep 26, 2026
Copper Coaxial and RF Connector Parts: Grades and Finish
Centre contacts, bodies and inner conductors for RF hardware: which copper grade, why the finish is an electrical spec, plating stacks and the RFQ lines.
- Sep 26, 2026
Tolerance Stacks on Copper Assemblies: Busbars, Stacks
Per part tolerance adds up through a busbar stack or laminated assembly. How to tolerance the individual copper parts so the assembly fits without paying twice.
- Sep 26, 2026
Thread Inserts vs Tapped Threads in Copper Parts: Guide
Tapping pure copper is where parts get scrapped and threads tear. When a helical or solid insert is the better answer, when it is not and how to call it out.
- Sep 26, 2026
Machined vs Skived Copper Heat Sinks: Which to Order
Skiving peels fins from a solid block and wins on plain fin packs at volume. Machining wins on prototypes and integrated features. How to pick before the RFQ.
- Sep 26, 2026
How to Specify Copper on a Drawing: UNS, ASTM, Temper
The four elements of a copper material callout, why the word copper on its own is not a specification and the exact line to write for each machined grade.
- Sep 26, 2026
Copper Busbar Design Guide: Sizing, Holes and Bends
Cross section, hole patterns, bend radius, edge condition and plating area. The busbar drawing decisions that set the current rating and the machining price.
- Sep 26, 2026
Machined Copper Heat Sinks: Fin Design and Flatness
Fin thickness, gap, aspect ratio and base flatness decide what a copper heat sink costs to cut. When machining is right and when skiving or bonded fins win.
- Sep 21, 2026
Design Rules for Copper Parts That Lower Your Quote
Wall thickness, corner radii, hole depth, threads and edge callouts. The drawing decisions that decide whether a part is quick to cut or slow and expensive.
- Sep 21, 2026
Copper RFQ Checklist: What to Send With Your Drawing
The files, notes and numbers a shop needs to quote a copper part properly, and the missing items that cause the price to change after you place the order.