Eliminate Axial Backlash
Multi-axis CNC milling removes mechanical play in die components, ensuring repeatable positioning within ±0.005 mm for heavy stamping loads.
CNC Machining
CNC Machining
Specialized multi-axis CNC milling, vertical turning, and EDM for metal stamping dies that demand strict micrometric accuracy.
Straightforward answers about our CNC milling, vertical turning, and EDM services for heavy-duty stamping dies.
We hold ±0.005 mm on critical die features and ±0.01 mm on general geometry. Every part is verified with a CMM report before shipment.
Our 5-axis machining centers use preloaded ball screws and direct-drive rotary axes. We also apply dynamic compensation algorithms during finishing passes to remove any residual backlash.
We can turn parts up to 2 meters in diameter. Typical jobs include die rings, bolster plates, and large press components requiring strict concentricity.
Wire EDM is best for through-cuts, narrow slots, and external profiles. Sinker EDM is used for blind cavities, sharp internal corners, and features where the electrode must plunge into the workpiece.
Yes. We regularly machine D2, A2, O1, H13, and PM steels in the hardened condition (up to 62 HRC). EDM and hard milling are both available for these materials.
Lead time depends on complexity and current workload. A single multi-axis milled part usually ships in 2–3 weeks. Large vertical-turned rings or EDM cavities may take 4–6 weeks. We provide a firm schedule at quotation.
Multi-axis CNC milling removes mechanical play in die components, ensuring repeatable positioning within ±0.005 mm for heavy stamping loads.
5-axis machining delivers sharp internal corners and tight radii on hardened steel dies, reducing secondary EDM operations by up to 40%.
Heavy-duty vertical lathe handles workpieces up to 2 m diameter with strict concentricity, eliminating distortion in bolster plates and ring dies.
Wire and sinker EDM achieves ±0.005 mm tolerances on blind cavities and fine features that conventional cutting cannot reach, extending die life.
In-process CMM verification catches deviations early, cutting rework by 30% and ensuring first-pass quality for production stamping dies.
The following clarifications govern all quotations, proposals, and service agreements for CNC milling, vertical turning, and EDM work. These terms eliminate ambiguity regarding tolerances, material condition, and inspection methods.
All stated tolerances refer to bilateral measurements taken at 20 °C on a calibrated granite surface plate. Unless otherwise noted, the default is ±0.005 mm for EDM features and ±0.01 mm for milled and turned surfaces. Axial backlash elimination is verified by a bidirectional probe cycle on the machine before part release.
No. All prices assume the customer supplies pre-conditioned blanks (stress-relieved, rough-machined to within 2 mm of net shape). If we procure material, a separate material surcharge applies and delivery lead time extends by the supplier’s lead time. We do not absorb grinding stock or heat-treatment distortion allowances.
A full dimensional report (CMM + manual checks) is issued for the first piece of every production run. Subsequent pieces receive in-process gauging and a final attribute check. Reports are delivered as PDF with a signed certificate of conformance. Additional reports (e.g., SPC charts, material certs) are available at an extra charge.
We define heavy-duty as any die assembly weighing over 500 kg or requiring a press capacity above 200 tons. For such dies, we require a signed die-design review before machining begins. This review covers clamping points, coolant access, and EDM start-hole locations. No rework due to design changes after approval is covered under the original quote.
Yes. Every multi-axis program includes a backlash compensation cycle that measures and records backlash on X, Y, Z, and rotary axes. The recorded values are appended to the job log. If backlash exceeds 0.003 mm on any linear axis, the machine is stopped and re-qualified before proceeding. This is a non-negotiable internal standard.
Wire EDM parts are supplied with a recast layer typically below 0.002 mm. Sinker EDM cavities may show a recast layer up to 0.008 mm depending on flushing conditions. If a recast-free surface is required (e.g., for high-polish die faces), we recommend a subsequent trim pass or manual polishing, which is quoted separately. We do not guarantee micro-crack-free surfaces unless explicitly contracted.