Your precision machined parts,
sourced and inspected
Milling, turning, 5-axis, EDM, grinding — from prototype to large-scale production. A single point of contact, a network of manufacturers selected and controlled in France, and a fast quote from a simple drawing.
Finding the right machinist costs time — and mistakes
Selecting a reliable workshop, checking the material, holding tolerances, securing lead times and traceability: every new supplier is a risk. CadNov absorbs that risk for you.
Reliability
Qualified, monitored workshops — not an anonymous lowest bidder.
Traceability
Material certificate (EN 10204 3.1) and dimensional report on request.
Lead times met
Milestones tracked by a project manager, not a black box.
One contact
You talk to one person, from quote to the good part.
Integrator, not just a broker
We design, source, follow up and inspect. You hand over the drawing, we deliver the conforming part — in France or via our sourced supply chain, according to your specifications (price, volume, lead time).
- Feasibility analysis and machining advice (DFM) before quoting
- Choice of the process and workshop best suited to your part
- Multi-workshop sourcing: France for the critical, controlled supply chain for cost
- Production follow-up and receiving inspection in France
- Coordinated heat and surface treatments
- Traceability, certificates and inspection reports
7 complementary machining processes
The right machine for each geometry, each material, each production run.
3-axis CNC milling
Prismatic parts, plates, brackets. High throughput, controlled cost.
5-axis milling
Complex shapes, undercuts, multiple operations in one setup.
CNC turning
Parts of revolution: shafts, bushings, fittings, threads.
Mill-turn
Mill-turn: complete parts in one operation, axis precision.
Wire EDM
Fine cuts, sharp internal corners, very hard materials.
Sinker EDM
Cavities, blind shapes, details impossible in milling.
Grinding
Fine surface finishes and tight tolerances after treatment.
All technical metals
The most common grades — others on request. (Machining of technical plastics is covered on our dedicated page.)
Steels
S235, C45, 42CrMo4, 16MnCr5, 100Cr6, 11SMn30 free-cutting steels, tool steels.
Stainless steel
304 / 304L, 316L, 303, 420, 17-4PH (precipitation-hardenable).
Aluminum
6061, 6082, 7075, 5083, 2017A — machinability and lightness.
Brass · Bronze · Copper
CuZn (Ms58/Ms63), CuSn bronzes, E-Cu copper (conductivity).
Titanium
Grade 2 and Grade 5 (TA6V) — medical, aerospace.
Another material?
Cast irons, superalloys, special steels: submit your need.
Tolerances and metrology
- General tolerances ISO 2768-mK by default
- Tight functional dimensions down to ± 0.01 mm depending on material and geometry
- Surface finishes Ra 1.6 — down to Ra 0.4 / 0.2 after grinding or polishing
- Large dimensions possible (specify the part envelope)
Inspection
- Dimensional inspection, CMM / measuring column
- Inspection report and FAI (first article) on request
- Material certificate EN 10204 2.1 / 3.1
- Receiving inspection of parts in France before delivery
From the raw part to the finished part
We coordinate all post-machining treatments — a single contact for the whole chain.
Which heat treatment for which steel?
Indicative guidance. CadNov validates the material/treatment pairing according to your function and tolerances.
| Goal | Treatment | Typical steels | Guide value |
|---|---|---|---|
| Through-hardness (core strength) | Quench + temper | C45, 42CrMo4, 34CrNiMo6 | 28–50 HRC depending on tempering |
| Hard surface, tough core | Carburizing + quench | 16MnCr5, 20MnCr5, 18CrNiMo7-6 | surface 58–62 HRC |
| Hard surface, low distortion | Nitriding / nitrocarburizing | 42CrMo4, 31CrMoV9 | 600–1000 HV |
| Localized hardening | Induction hardening | C45, 42CrMo4 | surface 50–58 HRC |
| Dimensional stability after machining | Stress-relief annealing | all steels | limits distortion |
| Improve machinability | Annealing / normalizing | alloy steels | before machining |
| High-strength stainless | Precipitation hardening | 17-4PH (1.4542) | ~ 40+ HRC |
Which surface treatment for which need?
| Need | Treatment | Substrates | Good to know |
|---|---|---|---|
| Steel corrosion protection (standard) | Zinc plating + passivation / zinc-nickel | steel | zinc-nickel for harsh environments |
| Corrosion protection + paint adhesion | Phosphating | steel | also anti-galling |
| Stainless corrosion protection | Passivation | 300/400 stainless, 17-4PH | no zinc plating on stainless |
| Hardness / wear (aluminum) | Hard anodizing (type III) | aluminum only | layer 25–60 µm |
| Corrosion protection + color (aluminum) | Type II anodizing / TCP chromate conversion | aluminum | REACH-compliant TCP |
| Hardness / sliding (steel) | Hard chrome / electroless nickel | steel, stainless | electroless nickel = uniform deposit |
| Black look, anti-reflective | Black oxide (bluing) | steel, stainless | low protection on its own |
| Low friction (technical) | DLC / PTFE | steel, stainless | specific applications |
Cut cost and lead time from the drawing
Useful tolerances
Only tighten functional dimensions. ± 0.01 everywhere multiplies the price.
Internal radii
Allow a radius ≥ tool radius. Sharp internal corners require EDM.
Walls and slenderness
Avoid thin walls and very deep pockets (vibration, re-clamping).
Right material
Unnecessary stainless or titanium doubles the machining cost. Choose by function.
Standard threads
Standard threads, through-holes if possible: less special tooling.
Clean file
STEP or IGS + dimensioned 2D drawing (critical dimensions, surface finish, treatment).
Inspected in France, committed ESG approach
Today, our guarantee rests on inspecting parts in France before delivery. In parallel, CadNov is gradually rolling out ESG criteria at its partners, starting with the low-cost supply chain.
Inspection in France
Receipt and dimensional check of parts in France before shipping. Our baseline guarantee, real and verifiable.
Workshop selection
Technical qualification, capacity and quality: we only work with known, monitored partners.
ESG being rolled out
Environmental and social criteria being integrated at our partners, low-cost supply chain first. A gradual approach — not an acquired label.
Framework agreements and controlled prices
- Volume-based discounts
- Framework agreements with scheduled deliveries (planned batches)
- Target price: we source to reach your objective
- Buffer stock and replenishment on forecast
A platform, but with a human behind it
Marketplaces leave you alone facing an algorithm. CadNov combines the speed of a platform with the expertise of a plastics + mechanical integrator. Today: fast quote and support. Tomorrow: instant online quote from your drawing.
Single point of contact
A person, not a ticket.
Inspection in France
Parts checked before delivery.
Committed ESG approach
Criteria being rolled out.
Instant quote (coming)
The platform is being built.
Send your drawing, get a quote
STEP, IGS or dimensioned PDF. Fast response, a dedicated contact.
Request a quoteAntoine ERRIGO · +33 (0)4 74 32 23 60 · direction@cadnov.fr · CadNov, 240 rue des Câbles de Lyon, 01000 Saint Denis Lès Bourg · CII-approved