Secondary Machining for Die Cast Parts
As-cast tolerances don't cover every feature a design needs. We machine bores, threads, sealing surfaces, and other critical features directly after casting, on the same production floor.
Typical applications
- Precision bores and bearing seats
- Tapped holes and threaded inserts
- Flatness and sealing-surface finishing
- Fixture and mounting-feature machining
Process overview
- 1
Fixture design
Casting-specific fixtures are built to hold parts securely and repeatably for machining.
- 2
Machining
Features are cut to print tolerance using CNC equipment.
- 3
Inspection
Machined features are measured against the print before parts move to finishing or assembly.
Part design considerations
- Machining stock/allowance must be planned into the casting design, not added after the fact
- Fixture points should avoid cosmetic or functional surfaces where possible
DFM guidance
- Identify which features are functionally critical during quoting so casting allowance and fixturing are planned together
- Consider datum strategy early — how a part will be held for machining affects achievable tolerance
Quality controls
- Dimensional inspection of machined features against the print
- Documented inspection records available on request
Secondary operations available
- Powder coating and finishing after machining
- Assembly
Frequently asked questions
Can you machine castings from another supplier?
Yes — send sample parts and prints and we'll quote fixturing and machining independent of where the part was cast.
Ready to talk about your project?
Send your drawings or describe your part — an engineer will follow up, not a sales queue.