Join Us As We Put the PRO

In Your Production!

New AS9100 Suppler Flow Down Requirements!

ThermoFusion Inc., Specialists in Brazing and Heat Treating, has been solving customers' metallurgical problems since 1968. Our services consist of Heat Treating, Aluminum, Brazing/Joining, and Secondary Operations. We pride ourselves in the quality of our work and are the only specialists in California who provide Heat Treating and Brazing services. ThermoFusion is committed to customer satisfaction through excellence in heat treating and brazing services. ThermoFusion and its employees take pride in the quality of their work and are dedicated to improving.

New Supplier Flow Down Requirements

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Latest News

TFI Donates to UCSF Children's Hospital
General News

On behalf of our customers, large and small, ThermoFusion has donated to the UCSF Benioff Children's Hospitals. Thank you for your support of us, as we support others.

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Visit Us at BioMedDevice Show
General News

Visit Us at BioMedDevice Show in San Jose Dec 5 & 6. Click HERE for more information.

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2018 Holiday Schedule
General News

1) We're closed for Thanksgiving, Nov 22 and 23. We're thankful for all our supporters.

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2018 Intern Program Update
General News

ThermoFusion Hires 2018 Interns.

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We Specialize in all Material Solutions

Heat Treating

Heat Treating includes all the various metalworking processes which are used to change the properties of a material to make it useful.

Brazing & Joining

Brazing is a metal-joining process where two or more materials are joined together by a third, dissimilar material to bond them together.


Aluminum is one of the most abundant elements on Earth, but it needs to be heat treated to be useful to machinists and consumers.

Secondary Operations

Secondary Operations are all those steps beyond just heat treating and brazing that add value to our customers and their parts.

Get to Know Us

  • Thanks for the quick turn over on our last parts. The pickup and drop off ... went perfectly. ... Our customer is stoked about how they came out. One of the guys said he wants that finish on his pickup ...

    Sterling D., Supply Chain

  • "... thanks for the efforts and the update!"

    Jeff B, Supplier Business Mgr

  • "We would like to express our sincere appreciation for your service to us as one of our dearest regular suppliers. Over the years, you have provided the best service/product with even better customer service. Deliveries are often received earlier than expected, and you are quick to resolve any issues that arise.

    Craig K, Purchasing

  • In summary, your competitor came in over twice as high as you on the three items I had quoted. I will pass this report onto ***.

    Sterling D, Supply Chain

  • Overall one of the best companies we have worked with and have really saved us in expedite situations. Professional and prompt service from an extremely knowledgeable staff.

    Jason T, Program Mgr

Covering a Variety of Industries

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