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Home> Industry News> Fatigue Life and Structural Strength Verification of Intelligent Wearing Micro Screws

Fatigue Life and Structural Strength Verification of Intelligent Wearing Micro Screws

2026,08,28
Operating Conditions: In continuous stamping production lines, Intelligent Wearing Micro Screws are subjected to repeated tensile loads and impacts (e.g., stamping frequency of 1000 cycles/min), making them prone to fatigue fracture and localized deformation.
CB0.7 flat tail self tapping screw
Test Methods: A fatigue testing bench was used to simulate actual loads (e.g., 100kN alternating tensile force) for up to 10⁶ cycles, monitoring crack propagation in stress concentration areas of the Intelligent Wearing Micro Screws.
Evaluation Indicators: Fatigue life (≥ design cycles), deformation (≤0.1mm), crack propagation rate (≤1×10⁻⁶mm/cycle).
Structural Design: Adding reinforcing ribs and optimizing fillet transitions to avoid stress concentration;
Heat Treatment: Employing a "quenching + high-temperature tempering" process to improve material toughness (e.g., tempering temperature of Cr12MoV steel controlled at 500~550℃);
Load Optimization: Adjusting stamping parameters through finite element analysis to reduce peak loads.
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Author:

Mr. yjfastener

E-mail:

hou@citool.com

Phone/WhatsApp:

+8615826187211

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