Understand the interface
Review current path, clamping force and mating component.
CUSTOM PARTS / ENGINEERING & MACHINING
C110 Copper CNC Machining for Contact & Thermal Interfaces
A contact face must seat flat. A threaded port must be clean. We plan C110 machining, deburring and finishing around the surfaces that carry current or transfer heat.
A contact face smears or carries burrsFeature-specific process planning
A thin thermal plate loses flatnessDefined inspection condition
Plating changes threads or contact facesFirst-off and finishing scope
Protect the conductive interface through the whole route
Our review links the feature that matters in your assembly to the proposed setup, machining sequence and acceptance check.
| Your part challenge | Our proposed approach | How to verify the result |
|---|---|---|
| A contact face smears or carries burrs | Plan tooling, workholding and edge control around the soft copper surface. | Inspect the defined contact area and burr limits after cleaning. |
| A thin thermal plate loses flatness | Review balanced removal and support without crushing the part. | Measure released-part flatness using the agreed support method. |
| Plating changes threads or contact faces | Define finish boundaries, masking and final-fit allowance. | Check the finished interface and coating requirements separately. |
ILLUSTRATIVE ENGINEERING BRIEF
A C110 contact block with a flat mating face
Illustrative RFQ: 50 blocks, 60 × 40 × 12 mm envelope, four M4 positions and a 0.05 mm contact-face flatness target before the agreed finish.
50 pcsExample batch
0.05 mmContact-face target
M4 × 4Example connection positions
These numbers describe an example customer requirement, not a completed customer project or a guaranteed machining limit. Final feasibility is confirmed from the drawing.
The engineering challenge
Clamp marks and burrs can reduce the useful contact area. A flatness report alone does not demonstrate electrical resistance in the final assembly.
The acceptance plan
Proposed acceptance: contact-face flatness, thread checks, burr acceptance and finish documentation. Assembly resistance testing is separately specified.
A proposed machining route
- Review the current path, mating face, fasteners and finishing boundaries.
- Support the block and sequence roughing before the final interface pass.
- Machine threads, remove burrs and protect the defined contact surfaces.
- Coordinate plating or masking; inspect the final condition and agree any separate electrical test.
What our engineering review
brings to your quotation
Manage soft-copper cutting
Plan support, chip handling and final surface passes.
Coordinate conductive finishes
Define plating and bare-contact boundaries.
Separate dimensions from performance
Agree any electrical or thermal validation in addition to machining checks.
Material selection
supports the part.
Confirm the grade after the functional requirements are clear.
Confirm copper designation, temper and product form. Electrical or thermal requirements should be tied to the specified material and finished interface.
View Copper C110 grade and specification notes
| Material option | Selection context | What to confirm |
|---|---|---|
| C11000 / ETP copper | Conductive and thermal interfaces | Confirm standard, temper and supplier certificate. |
| Specified oxygen-free copper | Applications with different material requirements | Treat it as a separate designation and approved material choice. |
Material reference: Material or fabrication reference ↗.
Questions about your machining project
Does a dimensional inspection prove low contact resistance?
No. State the assembly conditions and required electrical test if contact resistance must be verified.
Can you protect bare contact areas during plating?
Mark the areas and dimensions on the drawing so masking and final acceptance can be proposed.
Is C110 the same as oxygen-free copper?
Use the exact designation and standard. C110 ETP and oxygen-free copper are separate material choices.
Are the example parameters a guaranteed capability?
The example is a customer brief used to explain the proposed engineering route. Actual limits, cost and timing are confirmed from the complete drawing.
What should I include for this process review?
Send the CAD and drawing revision, exact grade, quantity and the critical requirements discussed above. Include mating-part details and required inspection records.
ENGINEER YOUR NEXT PART
Get a quote built around
your part requirements.
Send the drawing and tell us which feature controls assembly, sealing or motion. Our review connects that requirement to a proposed route and inspection scope.
- CAD model and 2D drawing revision
- Mating-part details and the fit problem to solve
- Material grade and accepted alternatives
- Quantity and requested delivery date
- Critical requirement: A contact face smears or carries burrs
- Critical requirement: A thin thermal plate loses flatness
- Critical requirement: Plating changes threads or contact faces
- Inspection and functional validation scope