We use the metal powder forming and sintering process, combined with subsequent finishing.
The products with high strength, wear resistance and complex geometric structure is produced to meet the needs of modern transmission systems for lightweight, low noise and high efficiency.
Powder metallurgy synchronizers and tooth hubs have the following core advantages:
~Material and cost advantages:
• High material utilization rate: The near-net forming process results in material loss of less than 5%, making it particularly suitable for precious metals such as copper and stainless steel, and reducing costs.
~Low cost in mass production:
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Mold forming is suitable for mass production, and the cost of a single part is 30%-50% lower than that of cutting processing.
~Structural and performance advantages:
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One-time molding of complex structures.
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The precision structures such as the gear sleeve, gear hub mating teeth and splines of the synchronizer can be directly formed without the need for subsequent gear milling or gear insertion.
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The interior of the gear hub can integrate functional structures such as oil grooves and weight-reducing holes to enhance lubrication and lightweight performance.
•Self-lubricating property: The porous structure for oil storage reduces friction and wear, making it suitable for scenarios with frequent gear shifting (such as automotive gearboxes), and lowers noise and energy consumption.
~Lightweight and design flexibility:
• Adjustable density, lightweight: The density is controlled by pressing pressure (6.5-7.8g/cm³), which is 10%-20% lighter than forged parts, meeting the lightweight requirements of automobiles.
• High design freedom: Customizable asymmetric tooth profiles and special modules (such as fine tooth structures) are available to meet the requirements of different transmission speed ratios and spatial layouts.
Applicable scenarios and reliability
(1),Low-noise transmission: The porous structure absorbs vibration and is suitable for noise-sensitive scenarios (such as reducers in new energy vehicles).
(2),Wear resistance: Through heat treatment (such as carburizing and nitriding), the surface hardness (HV500-800) can be enhanced, extending the service life and making it suitable for medium and low load shifting mechanisms.
Typical applications
1: Automotive industry: Manual transmission synchronizers, automatic transmission hubs, gear assemblies for new energy vehicle reducers.
2:Industrial equipment: Gear shifting mechanisms of precision transmission devices, synchronous components of textile machinery.
Powder metallurgy processes significantly enhance the cost-effectiveness of synchronizers and gear hubs through efficient forming and performance optimization, especially in scenarios requiring large quantities, lightweight, and self-lubrication.
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