Brazing

Professional Brazing

ThermoFusion provides professional brazing services for industrial applications throughout the Bay Area. Brazing is a metal joining process that creates strong, leak-tight joints by melting a filler alloy between closely fitted components while leaving the base materials intact. Our brazing capabilities support complex assemblies requiring precision, strength, cleanliness, and repeatable performance. ThermoFusion performs a variety of brazing processes to meet the unique requirements of customer components, materials, and operating environments.

How Brazing Works

Brazing joins two or more materials by heating a filler alloy above its melting temperature while keeping the base materials below their melting point. The molten filler metal flows through the joint by capillary action, creating a metallurgical bond between the components. The process is commonly used when welding may introduce excessive distortion or when components require leak-tight joints, complex geometries, or dissimilar material combinations.

ThermoFusion Brazing Capabilities

ThermoFusion offers multiple brazing methods to support a wide range of materials, assemblies, and performance requirements.

• Vacuum Brazing
• Hydrogen Brazing
• Partial Pressure Vacuum Brazing
• Torch Brazing
• Low Temperature Soft Soldering
• Production and prototype quantities
• Helium leak testing available

Common Materials

• Aluminum
• Copper
• Oxygen-Free Copper (OFHC)
• Steel
• Stainless Steel
• Kovar
• Ceramics
• Customer-specified specialty alloys

Benefits of Brazing

• Strong, reliable joints
• Excellent leak-tight performance
• Minimal distortion compared to welding
• Ability to join dissimilar materials
• Clean, repeatable metallurgical bonds
• Excellent thermal and electrical conductivity
• Suitable for complex assemblies
• Cost-effective production processing

Common Applications

Brazing is commonly used for aerospace hardware, heat exchangers, radiators, electronic assemblies, vacuum systems, sensors, tooling, industrial equipment, copper assemblies, and components requiring leak-tight or high-strength joints.

Industries Served

Our brazing services support aerospace, defense, electronics, medical, industrial manufacturing, energy, automotive, and precision engineering applications requiring reliable joining performance and process control.

Certified Quality

With decades of thermal processing experience, ThermoFusion is committed to delivering consistent results that meet stringent customer and industry requirements. Our facility maintains ISO 9001:2015, AS9100D, and Nadcap certifications, ensuring quality, traceability, and process control throughout every project.