A 12L14 carbon steel medical instrument body is completed in fewer setups, which is the real advantage: feature relationships improve because the part is not re-fixtured between faces. Below is the practical detail on 12L14 carbon steel medical instrument body supplied for aerospace: simultaneous five-axis machining with simulation and verified toolpaths, the tolerance that is held, the finish applied and the documents issued with the parts.
Tolerance is applied where it does work rather than across the whole drawing. Critical features are held to ±0.02 mm, non-critical dimensions follow the general machining tolerance, and the difference is stated in the quotation rather than discovered later.
Specification
| Process | Simultaneous five-axis machining with simulation and verified toolpaths |
|---|---|
| Material / configuration | 12L14 carbon steel |
| Size / capacity | undercut features in one setup |
| Tolerance | ±0.02 mm |
| Surface finish | as machined or polished, Ra 0.8 µm |
| Application | medical instrument body for aerospace |
| Inspection | Dimensional report, material certificate, first article report on request |
| Lead time | 7–15 working days for samples, 3–4 weeks for production |
| Minimum order | 1 piece for prototypes, from 50 pieces for production pricing |
Manufacturing process
Work is carried out with simultaneous five-axis machining with simulation and verified toolpaths. Tooling, speeds and fixturing are recorded with the part number, so a repeat order starts from a proven process instead of a fresh setup.
Material is purchased against a certificate and checked on receipt, so the composition is known before any cutting starts. Work in progress is identified by part number and operation, and the finished parts are deburred, cleaned and protected before they leave the machine area.
Typical applications
Most of the work supplied in this category falls into the following examples.
- Aerospace structural fittings.
- Impellers and bladed components.
- Surgical instrument bodies.
- Robot wrist and joint housings.
- Optical and camera mounts.
Quality control and documentation
Critical features are measured on calibrated equipment in a controlled room, and the results are filed with the job so that a repeat order can be compared with the first.
Material certificates to EN 10204 3.1, dimensional reports and first article inspection reports are issued with the shipment where the application requires them. Calibration dates and measurement uncertainty are recorded alongside every result.
Ordering, lead time and packaging
Packaging is specified by the part: individual protection for finished surfaces, separation for assemblies, and export crating with a packing list for shipment.
Frequently asked questions
When is five-axis worth the extra cost?
When a part needs three or more setups in three-axis work, or when a compound angle cannot be reached otherwise. Fewer setups also means fewer places for tolerance to accumulate.
How are toolpaths verified before cutting?
Every programme is simulated against the solid model, checking for collisions, holder clearance and gouges, then run with a reduced feed on the first part under a dry run.
Do you keep tooling and programmes for repeat orders?
Fixtures, tool lists and verified CAM programmes are retained for the life of the part number, so a repeat release runs on the same setup as the first batch without a new proving run.
Drawings are reviewed for manufacturability before quotation, and any feature that adds cost without adding function is pointed out at that stage rather than after the parts are made.
