Fasteners Play A Crucial Role In Electric Vehicle (Ev) Industry

30+ Years Experienced custom fastener manufacturer & factory committed 0 PPM for production

Custom electric vehicle fastening solutions

Chuanghe is a trusted supplier of specialty Electric vehicle fasteners for electric vehicle OEMs, tier suppliers and aftermarket product manufacturers. Many of the applications for which we provide fastening design expertise are related to Electric motor, Battery module and tray, Thermal management system, Charging system and connector and products.

electric vehicle (EV) INDUSTRY

In the electric vehicle (EV) industry, fasteners play a crucial role in assembling and securing various components, ensuring structural integrity, safety, and reliability.

Fastener Manufacturing Processes

● Cold heading: Used for producing bolts, screws, and other cold-formed fasteners from wire or rod stock.

● Hot forging: Employed for manufacturing larger fasteners, such as wheel studs and high-strength bolts.

● Threading: Threads are formed on fasteners through rolling, cutting, or forming processes.

● Heat treatment: Fasteners may undergo heat treatment processes like quenching and tempering to enhance their strength and durability.

● Surface treatments: Such as electroplating, anodizing, or coating, can enhance the corrosion resistance of materials. This protection extends the service life of components and reduces maintenance costs.

Common Fastener Types and Applications

Battery Pack Fasteners

● Battery module and tray fasteners

● Battery pack enclosure fasteners

● Thermal management system fasteners

Structural Fasteners

● Body-in-white (BIW) assembly

● Chassis and subframe connections

● Suspension system fasteners

Powertrain Fasteners

● Electric motor mounting

● Gearbox and transmission fastening

● Inverter and power electronics mounting

Electrical System Fasteners

● High-voltage wiring and cable fasteners

● Junction box and distribution panel fasteners

● Grounding and bonding fasteners

Interior and Trim Fasteners

● Seat and console fasteners

● Dashboard and trim panel fasteners

● Electrical component mounting

Specialized Fasteners

● Brake system components (caliper mounting, disc fastening)

● Wheel hub and bearing fasteners

Charging system and connector fasteners

Fastener materials commonly used in electric vehicles include high-strength carbon steels, stainless steels, aluminum alloys, and specialized alloys designed for specific applications. The choice of fastener type, material, and manufacturing process depends on factors such as strength requirements, vibration resistance, corrosion resistance, weight considerations, and electrical conductivity (for grounding and bonding applications).

Proper fastener selection, installation, and maintenance are critical for the safe and reliable operation of electric vehicles, ensuring secure connections and minimizing the risk of component failure or separation, especially in safety-critical areas like the battery pack and high-voltage systems.

PRODUCT ADVANTAGES

In the electric vehicle (EV) industry, manufacturers have specific requirements and demands for fastener products to ensure safety, reliability, and performance, while also considering the unique challenges posed by electric powertrains and high-voltage systems.

● High Strength and Durability:

Exceptional tensile strength and yield strength

Fatigue resistance under cyclic loads

Resistance to stress corrosion and hydrogen embrittlement

Consistent mechanical properties across production lots

● Lightweight and Compact Design:

Weight reduction through the use of lightweight materials (e.g., aluminum, titanium)

Compact and space-saving designs for packaging constraints

● Electrical Conductivity and Grounding:

Conductive materials for grounding and bonding applications

Resistance to galvanic corrosion in dissimilar metal joints

Effective electrical shielding and EMI/RFI protection

● Corrosion Resistance and Environmental Durability:

Resistance to harsh environments (moisture, road salt, chemicals)

Long-term protection against corrosion and seizure

Ability to withstand temperature extremes and thermal cycling

● Vibration and Shock Resistance:

Ability to withstand high vibration levels and shock loads

Locking features to prevent self-loosening

Resistance to fretting and fretting corrosion

● Ease of Assembly and Maintenance:

Ergonomic head styles for efficient assembly

Captive or pre-assembled fastener solutions

Easy access for installation and removal during maintenance

● Cost-Effectiveness:

Competitive pricing and cost optimization

Efficient manufacturing processes

Potential for part consolidation or design simplification

● Quality and Traceability:

Stringent quality control and inspection processes

Lot traceability and documentation

Compliance with automotive industry quality standards (e.g., IATF 16949)

● Sustainability and Environmental Responsibility:

Eco-friendly materials and manufacturing processes

Recyclability and end-of-life considerations

Compliance with environmental regulations

● High-Voltage Safety and Insulation:

Electrical insulation properties for high-voltage applications

Compliance with safety standards for EV components

Resistance to electrical tracking and arcing

By addressing these requirements and needs, fastener manufacturers can provide EV OEMs and suppliers with reliable, high-performance products that contribute to vehicle safety, durability, and overall quality, while also meeting the unique demands of electric powertrains and high-voltage systems.

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Chuanghe Fastener Co, Ltd. (CHE ) offers OEM & ODM & Customized services to customer, which included cold heading, CNC processing center, wire cutting, powder metallurgy processing and assembly of metal parts with plastic parts.We have industry leading quality inspection equipment such as 3D scanner, Ultrasonic Flaw Detector etc