CNC EDM Drilling 4142 Alloy Steel from VT machining delivers precision 4142 Alloy Steel parts made to your exact drawing. Fast-hole EDM drilling produces small, deep holes in hard metals, including starter holes for wire EDM, with parameters tuned to 4142 Alloy Steel, which is high-strength and hardenable.
CNC EDM Drilling Capability for 4142 Alloy Steel
- Cr-Mo / Ni-Cr-Mo grades
- High strength & hardenability
- Tolerance to ±0.01 mm
- Heat-treatable to 30–55 HRC
Machining 4142 Alloy Steel with CNC EDM Drilling
4142 Alloy Steel behaves predictably under CNC EDM Drilling once parameters are dialled in: machinability is good in annealed condition; machined soft then heat-treated to final hardness, and we tune the operation accordingly.
We hold reference parameters for this grade, so repeat orders of 4142 Alloy Steel run consistently from one batch to the next.
Design Tips for CNC EDM Drilling 4142 Alloy Steel
We are happy to suggest design tweaks that improve manufacturability. EDM suits sharp internal corners, thin ribs and hardened 4142 Alloy Steel that cannot be milled; allowing a small corner radius where possible speeds the cut. If you send your model early, we will return practical DFM feedback before you commit to production.
Secondary Operations & Finishing
Finished 4142 Alloy Steel parts can move straight into secondary operations under one roof. Typical add-ons are deburring, passivation, anodising, plating, blasting, polishing and laser marking. We coordinate the whole chain so you receive complete, inspection-ready parts.
Why 4142 Alloy Steel?
4142 Alloy Steel is chosen when a part needs what this grade offers — it is high-strength and hardenable. We confirm the grade and any temper or heat-treat condition with you before machining.
CNC EDM Drilling Quality & Inspection
We control quality throughout the process, not just at the end. In-process checks plus final inspection — including CMM where specified — keep every 4142 Alloy Steel part to print. Inspection reports, material certificates and first-article documentation can be supplied on request.
CNC EDM Drilling Tolerances & Surface Finish
EDM holds tolerances to roughly ±0.002–0.005 mm with no cutting force on the 4142 Alloy Steel part, producing fine, controlled surface textures and sharp internal corners impossible to mill.
Final tolerances are governed by the material's behaviour, wall thickness and overall stiffness. We give honest DFM feedback if a callout would be costly or better achieved another way.
Applications of CNC EDM Drilling 4142 Alloy Steel
Customers order CNC EDM Drilling 4142 Alloy Steel components for everything from instrumentation to structural and functional assemblies. Whether you need a single prototype or recurring production volume, the same process discipline applies.
How to Order CNC EDM Drilling 4142 Alloy Steel
Getting a quote is simple. Share your model, the material grade, your quantity and target tolerances. You receive a clear quotation with lead time and honest manufacturability feedback.
4142 Alloy Steel in Other Processes
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Need CNC EDM Drilling 4142 Alloy Steel for your project? Send your drawing and quantity for a fast quotation.
Request a QuoteFrequently Asked Questions
What is the typical lead time and minimum order for CNC EDM Drilling 4142 Alloy Steel?
CNC EDM Drilling prototypes for 4142 Alloy Steel can be produced quickly and scaled to series production. Send your drawing and quantity and we will advise lead time and any minimum order.
What tolerances can you hold for CNC EDM Drilling 4142 Alloy Steel?
Achievable tolerances for 4142 Alloy Steel EDM machining depend on the alloy, geometry and feature size. EDM holds tolerances to around ±0.002 mm with no cutting force on the part. Exact figures are confirmed against your drawing callouts.
What surface finish is achievable on 4142 Alloy Steel with CNC EDM Drilling?
Surface finish on 4142 Alloy Steel is controlled to your specification; we confirm the achievable Ra against your callout.
Can you EDM-machine hardened 4142 Alloy Steel?
Yes. EDM removes material by electrical discharge rather than cutting force, so hardened and difficult 4142 Alloy Steel can be machined to fine detail and tight tolerance without distortion.
What is CNC EDM Drilling 4142 Alloy Steel and how is it done?
CNC EDM Drilling 4142 Alloy Steel refers to fast-hole EDM drilling produces small, deep holes in hard metals, including starter holes for wire EDM. Applied to 4142 Alloy Steel — high-strength and hardenable — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.