Precision Automotive Exhaust Flange Fabrication Services

Mingli Metal delivers custom stainless steel laser cutting and multiple welding solutions for critical sealing components in fuel vehicle exhaust systems and new energy vehicle exhaust systems. Our automotive flange fabrication process guarantees leak-proof performance with ±0.1mm dimensional accuracy, 950℃ heat resistance, and GB/T 1591-certified materials—ideal for durable automotive flanges.

product details

High-Performance Exhaust Flange Production

・ Laser-cut stainless steel flanges: Precision hole cutting (60mm inner + 10mm small holes) for seamless automotive flanges integration

・ Argon shielded welding for SUS304 automotive flanges: Prevents oxidation during high-temperature welding, critical for long-lasting automotive flanges

・ Multi-material fabrication: SUS304/Q235/Q355 steel automotive flanges options for corrosion resistance in diverse exhaust environments

・ Automotive surface finishing: Shot blasting or electroplating for automotive flanges per application needs

・ CNC-controlled accuracy: Critical waist circle (15×10mm) and profile (120×90mm) within 0.1mm tolerance for perfect automotive flanges fit

Technical Specifications

Parameter	Specification
Flange fabrication	120×90mm outer dimensions for standard automotive flanges
Laser cutting	60mm main hole + 10mm bolt holes for SUS304 automotive flanges
Material options	SUS304 / Q235 / Q355 steel for automotive flanges
Surface treatment	Shot blasting / Electroplating for automotive flanges
Heat resistance	950℃ deformation-free for all automotive flanges

Solving Automotive Industry Pain Points

Challenge 1: Assembly Failure from Poor Precision
● Our solution: CNC-programmed stainless steel laser cutting maintains ≤0.1mm sealing ring error for automotive flanges
● Result: Direct-fit installation of automotive flanges with zero post-machining

Challenge 2: Leakage from Material Cracking
● Our solution: Rigorous GB/T 1591 material testing for weld integrity in Q235/Q355 automotive flanges
● Result: Eliminated thermal fatigue cracks in automotive flanges during exhaust cycling tests

Exhaust Flange Fabrication Workflow

1. Steel plate laser cutting: Burr-free edges for perfect sealing surfaces in automotive flanges

2. Precision grinding: Smooth finish on all cut edges of automotive flanges

3. 3D curved surface welding: Argon gas protection during welding of SUS304 automotive flanges

4. Automotive surface treatment: Corrosion-resistant finishing for long-lasting automotive flanges

Why Choose Our Automotive Flanges?

● Enhanced durability: Strict material selection prevents corrosion in exhaust environments for automotive flanges

● EV-ready compatibility: Validated automotive flanges for hybrid/electric vehicle exhaust systems

● Leakage prevention: Precision laser cutting ensures optimal gasket compression in automotive flanges

● Thermal stability: automotive flanges maintains seal integrity under extreme temperature cycling

Certified Performance

All automotive flange fabrication follows automotive industry standards:
✓ Dimensional accuracy: ±0.1mm (ISO 2768 fine) for automotive flanges
✓ Material certification: GB/T 1591 compliance reports for SUS304/Q235/Q355 automotive flanges
✓ Temperature validation: 950℃ thermal cycle testing for automotive flanges

Application scenario atlas

Auto parts —— Provide customized processing services according to your needs (3)

Auto parts —— Provide customized processing services according to your needs (2)

Auto parts —— Provide customized processing services according to your needs (1)

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