• 2026-06-02

Motor cores including stator and rotor laminations are critical components that determine motor efficiency, stability and service life. Manufacturers classify them into new energy motor cores and traditional motor cores. Though both stator and rotor parts are made of laminated silicon steel via stamping, they differ greatly in materials, precision standards and applicable working conditions.  ...

• 2026-06-05

What is Compound Die Stamping for Motor Core Compound die stamping completes the full shape of stator or rotor lamination in one single stroke. It is a traditional and cost-effective process for small batch orders and prototype sampling.   Advantages - Low mold cost, suitable for new product development. - Fast proofing speed, 3–5 days for custom samples. - High single-piece precision f...

• 2026-06-10

  Core Principle: Excessive Contact Resistance Terminal overheating is fundamentally caused by abnormally high contact resistance. According to Joule’s law, high resistance generates massive heat when current passes through. Once the terminal contact surface fails to fit tightly, resistance rises sharply, forming a vicious cycle: heat accumulation → increased resistance → more...

• 2026-06-13

Main Causes of Terminal Overheating and Blackening 1. Unqualified Contact & Loose Installation Loose crimping, uneven torque and assembly gaps reduce the effective contact area of terminals. Based on the I²R heating principle, local high resistance generates intense heat, scorching metal surfaces and forming permanent black carbonized marks. Excessive crimping also causes micro-cracks and...

• 2026-06-18

  Common Stator & Rotor Core Defects The most frequent manufacturing defects for silicon steel motor cores include lamination edge burrs, inter-lamination short circuits, loose stacking and delamination, excessive core iron loss, dimensional tolerance errors, rotor die-casting faults and surface corrosion. All these issues result from improper process operation and insufficient quality co...

• 2026-06-29

What Exactly Are Automotive Wire Terminals? Automotive wire terminals are precision stamped metal contacts fixed on wire ends. They build detachable, firm and anti-vibration electrical connections between wires, sensors, ECU modules, batteries and auto accessories.   Different from ordinary electronic connectors, auto wire terminal connectors can resist high temperature, strong vibration, wat...

• 2026-06-30

1. Core Manufacturing Process: 45-Ton Progressive Die Stamping Cold rolled steel precision terminals are primarily formed using 45-ton high-speed punch presses​ with progressive dies. This process offers distinct advantages:   Ultreme Precision:​ Ensures dimensional consistency and smooth, burr-free edges (as highlighted by "smooth burn-free edges"), preventing poor contact caused by assembly...

• 2026-07-14

The Real Challenge: Flatness and Springback From a tooling perspective, the hardest part isn't the cut; it's the flatness. We’re typically chasing a tolerance of ±0.05mm to ±0.1mm​ across the entire plane.     Steel has memory. When you bend those little legs or add stiffening ribs, the material wants to spring back. If your die design doesn't compensate for this, or ...