From new energy vehicles and next-generation information technology to high-end equipment manufacturing, strategic emerging industries are advancing toward higher precision, greater efficiency and superior reliability.
For the high-end precision stamping sector, CYC keeps advancing material design and performance optimization of cemented carbide sheets. With material performance meeting world-class standards, the company has developed premium EDM grades including DF20, DF30, DM40 and MH15, focusing on core properties such as crack resistance, spalling resistance and chipping resistance.
CYC has more than 20 years of expertise in hard material development. Its EDM precision stamping sheets are produced via Cold Isostatic Pressing (CIP) and Hot Isostatic Pressing Sintering (Sinter-HIP). The company maintains full in-house control over the entire process, from raw powder materials to sintered finished products. Rigorous quality control guarantees the consistency and traceability of tungsten carbide materials. Based on different stamping conditions and punching speeds, CYC can offer well-matched material selection solutions.
How to select high-end EDM precision stamping sheets?
For precision stamping dies, higher hardness does not always mean better performance.
When faced with different stamping materials, punching speeds and die structures, the stability and service life of dies are ultimately determined by whether material properties precisely match actual failure modes.
In high-speed continuous stamping of precision electronics and thin sheets, dies suffer continuous frictional wear. Pursuing toughness alone often fails to deliver a satisfactory service life.
Sintered with carbide particles smaller than 1 μm, it balances excellent hardness and transverse rupture strength and delivers high consistency for sharp-edge machining. When the MH15 grade is made into punch blades for stamping 0.5 mm stainless steel, its punch life before the first regrind reaches 109K, outperforming 99K of a certain imported grade. This superfine-grain wear-resistant grade features outstanding edge retention and almost no chipping after machining.
Recommended applications: High-speed stamping dies for precision electronic components and lead frames
During high-speed continuous stamping such as new energy battery tabs, dies endure repeated impact loads. Solely pursuing high hardness may compromise impact resistance.
Through optimized cobalt content and fine WC microstructure design, they strike a balance between spalling resistance and toughness, lowering risks of cracking and spalling in continuous stamping. In end-use applications, punch blades made of DF30 achieve an average service life of 8.17 million strokes for high-speed stamping of 0.5 mm copper strip, greatly extending tool life.
Recommended applications: Lithium battery tab dies for new energy, electronic connector dies
When machining highly affinity materials such as pure iron, adhesive wear matters more than conventional wear.
By reducing cobalt content and redesigning carbide grain size, it inhibits reactions between binder phase and metals to extend die service life. It balances hardness and toughness, and boasts good EDM machinability and corrosion resistance with excellent resistance to soft metal adhesion.
Recommended applications: LED dies and stamping of pure iron and similar materials
From microstructure design to material performance, from individual grades to serialized solutions targeting different failure mechanisms, CYC continuously pushes the performance limits of high-end precision stamping materials. Empowering technological progress with stronger, tougher critical materials.
Contact us for more material solutions from CYC!
Sales Hotline: 400-863-2919
Official Website: www.cycarbide.com
