China Precision Metal Stamping Supplier & Service: Engineering Architecture, Smart Tooling & Global Supply Resiliency

The client retains 100% intellectual and physical ownership of all custom tooling built at Sunmy. Die tooling is maintained, polished, and stored in our climate-controlled warehouse free of charge for the agreed lifecycle of the project. If tool sharpening or component replacement (punches, die bushings) is required due to standard production wear, Sunmy covers all costs under our Lifetime Tooling Warranty guarantee.

Depending on part geometry complexity, progressive dies typically require 20 to 35 business days from tool design approval to T1 physical samples. Rapid single-station prototyping tools can be completed within 7 to 10 days using modular quick-change die shoes. Full FAI reports with 100% CMM measurement point data accompany all sample batches.

Yes. We regularly stamp aerospace-grade Titanium (Grades 1 through 5), Beryllium Copper, Kovar, Inconel, and Spring Steels (50CrV4, SK5). We utilize specialized PVD/CVD carbide die coatings (such as TiAlN and DLC) combined with high-pressure synthetic drawing lubricants to avoid micro-galling and extend punch longevity.

Burr height is governed by the precision clearance between punch and die matrix. At Sunmy, slow-wire EDM wire machining holds die clearances as tight as 3% to 5% of stock thickness. Punches are mirror-polished, and high-speed vision systems continuously audit edge burrs. Optional post-process vibratory micro-deburring or centrifugal dry-barrel polishing is also executed in-house.