Precision Tooling
Specialized machining that eliminates axial mechanical backlash and holds micrometric tolerances on complex die components.
Positional Accuracy
±2 µm
Max Workpiece Diameter
2 m
Straight answers about multi-axis CNC milling, vertical turning, and EDM for heavy stamping dies — no fluff, just the details that matter for your tooling decisions.
We consistently achieve ±5 microns on 5-axis milling for heavy stamping die components. Axial backlash is eliminated through rigid fixturing and optimized toolpath strategies, ensuring repeatability across long production runs.
Our vertical turning center handles workpieces up to 2 meters in diameter and several tons. The vertical orientation minimizes deflection and improves chip evacuation, giving you straighter cuts and concentricity within tight specs. Every part gets CMM verification.
EDM is the right choice for sharp internal corners, deep undercuts, and fine features in hardened tool steels that cannot be milled conventionally. Wire EDM holds ±2 µm positional accuracy, and sinker EDM delivers mirror finishes on critical forming surfaces with minimal recast layer.
Both. We can machine your supplied blanks or source certified tool steels matched to your die application. Either way, we inspect material hardness and condition before any cut begins.
Lead time depends on complexity and current workload. A single multi-axis milled part typically ships within 2–3 weeks after material approval. Large vertical-turned rings or EDM-intensive cavities may require 4–5 weeks. We give a firm schedule before starting.
Send us your die drawing or part specs. We’ll reply within 48 hours with a tolerance analysis and a suggested process sequence — no charge.
Clarifications on tolerances, material conditions, and inspection methods for multi-axis CNC milling, vertical turning, and EDM services.
Our multi-axis CNC milling holds positional tolerances of ±5 microns on all linear axes and ±10 arc-seconds on rotary axes under controlled thermal conditions. These values apply to the finished part after deburring and stress-relief, provided the raw stock meets standard pre-machining allowances. Any deviation due to material warping or excessive stock removal is assessed case by case.
Axial backlash is measured using a laser interferometer at the spindle nose with a calibrated test bar. The measurement is taken after warm-up cycle and reported in microns per direction reversal. Our standard acceptance threshold is 2 µm or less for new setups. If backlash exceeds this limit, the machine is re-trammed or the fixturing is adjusted before production begins.
Vertical turning is performed on materials with hardness up to 52 HRC. Softer materials such as mild steel or pre-hardened tool steels are turned with standard carbide inserts. Harder materials above 52 HRC require CBN or ceramic tooling, which may affect cycle time and surface finish. We confirm tooling compatibility before quoting.
Yes, a recast layer is inherent to the EDM process. Our standard finishing passes reduce the recast layer thickness to below 5 µm. For critical forming surfaces, we offer post-EDM polishing or micro-blasting to remove the recast layer entirely. The choice of dielectric fluid and pulse parameters is documented in the process report.
First-article inspection reports are included for all production orders. Each report contains CMM measurements for critical dimensions, surface roughness readings, and a visual inspection log. Reports are delivered in PDF format within two working days after machining completion. Additional certifications such as material traceability or hardness testing are available on request.