• 2026-05-29

In the world of automotive terminals, relay components, and microswitch contacts, precision is non-negotiable. A deviation of just 0.05mm can lead to poor contact, assembly failure, or costly recalls.   As a trusted manufacturer since 2002, Xiamen Jiaxin Precision Metal Co., Ltd.​ understands that controlling metal stamping tolerances​ is the key to a reliable supply chain.   The Core Ch...

• 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...

• 2026-06-02

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.  ...

• 2026-06-03

Grain-Oriented vs Non-Oriented Silicon Steel: Which for EV Motors? Most buyers confuse grain-oriented and non-oriented silicon steel for EV motor production. Here is the clear distinction:   Grain-Oriented Silicon Steel (CRGO): Designed only for single-direction magnetic flux transformers. Not applicable for EV stators and rotors.   Non-Oriented Silicon Steel (NOES): Features uniform mul...

• 2026-06-03

In 2026, AI-driven recognition, automation, and digital manufacturing transform hardware stamping parts, addressing challenges like component pickup failures and misalignment. The global metal stamping market grows at 8.9% annually, with brands like Jiaxin leading innovation in Custom Metal Stamping Parts and Precision Metal Stamping Services, shaping a more competitive and sustainable industry. &...

• 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...

• 2026-06-22

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...

• 2026-06-30

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...

• 2026-07-01

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...