• 2026-05-30

What Is Salt Spray Test? The salt spray test is an accelerated corrosion test to evaluate the anti-rust and corrosion resistance of metal stamping components, surface coatings and electroplating finishes. It is widely required by overseas buyers for automotive parts, home appliance hardware, electronic terminals and outdoor industrial accessories.   Main Test Standards Our factory follows int...

• 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...

• 2026-06-22

Why Terminal Precision Matters for Motors Even tiny flaws in terminals create big problems:   Energy loss: Poor fit increases contact resistance, raising heat and lowering efficiency.   Connection failure: Vibration or thermal cycling causes loose contacts, leading to motor shutdowns.   Safety risks: Overheating from unstable connections can trigger short circuits.   Micro prec...

• 2026-06-27

  What Are Car Wiring Terminals They are precision-stamped metal parts crimped or soldered to wire ends, fitting into connector housings. Unlike generic terminals, automotive-grade versions must withstand extreme temperatures, vibration, moisture, and corrosion to meet SAE and ISO standards.     Common Types Crimp terminals: Fast, reliable for mass production.   Blade/quick-con...

• 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...

• 2026-07-01

Core Materials Used in Body Stamping The choice of material directly impacts a vehicle’s strength, weight, and manufacturing cost. Key options include:   Advanced High-Strength Steel (AHSS): The most common choice for structural parts. Grades like DP780, DP980, and boron steel offer exceptional strength-to-weight ratios, enabling thinner yet safer components.   Aluminum Alloys: Lig...

• 2026-07-02

What is Automotive Metal Stamping? Automotive metal stamping is a manufacturing method that uses precision stamping dies and automated stamping equipment to process metal sheets through blanking, punching, bending, deep drawing, and shaping. This process transforms raw metal materials into standardized automotive hardware parts.   Unlike general metal stamping, automotive-grade metal stamping...

• 2026-07-06

How Does Stamping Improve Vehicle Safety? Automotive safety starts long before a crash test. It begins with material selection and part geometry.   High-Strength Steel (HSS)​ and hot-stamped boron steel​ are widely used in A/B pillars, door beams, and subframes.   Precision stamping ensures these parts maintain micron-level tolerances, allowing them to absorb impact energy without deform...