Vacuum Process Engineering, Inc.

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Sacramento, CA
Vacuum Process Engineering, Inc.

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VPE is a thermal engineering and manufacturing company that specializes in the metallurgical services of precision brazing, diffusion bonding, hot pressing, heat treating, thin film coating, complex assemblies, specialty cleaning, etc.

06/05/2026

Hot Pressing Process
A brief overview of the hot pressing process:

-The metal or ceramic powder is placed into a stationary die within the vacuum furnace.
-The furnace is heated and ran at a specific temperature profile, while simultaneously pressing vertically down upon the powder with a hydraulic ram.
-While the force is applied vertically, there is also radial pressure created against the die wall, and these pressures together with the heat result in effective particle joining.
-The densification begins with particle rearrangement and plastic flow at the particle contacts, and progresses into grain boundary diffusion, creating the finished material.
-Finished parts do usually require some diamond grinding to achieve the final shape tolerances.

06/02/2026

Vacuum Process Engineering (VPE) encourages exploration and experimentation, always striving to be leaders of metallurgical innovation. Furthermore, we are proud to be at the vanguard of technological creativity in the fields of thermal engineering, materials joining/bonding, heat exchangers, specialized coatings, advanced thermal processing, as well as unique assembly methods.

VPE is a thermal engineering and manufacturing company that specializes in the metallurgical services of precision brazing, diffusion bonding, hot pressing, heat treating, thin film coating, complex assemblies, specialty cleaning, as well as materials testing & analysis.

05/28/2026

Vacuum Brazing utilizes a vacuum environment to prevent components from reacting with oxygen, moisture, nitrogen, or other contaminants. By controlling the surrounding atmosphere, we create a clean environment that promotes filler alloy wetting and flow onto metal surfaces and capillary joints.

05/20/2026

We provide comprehensive contract manufacturing services, covering everything from executing specific processes or assembly tasks with customer-supplied components to delivering full-scale, high-quality turnkey assemblies. Acting as your prime contractor, we manage all critical manufacturing elements to ensure project success.

Our capabilities include:
-Advanced metallurgical expertise for both R&D and production
-Strategic use of R&D and prototyping budgets for maximum efficiency
-Solutions for product design challenges and production issues
-Turnkey manufacturing based on your drawings and specifications
-End-to-end solutions, from concept design and prototyping to full production
-Flexible production runs, from single prototypes to high-volume orders

05/15/2026

Materials Testing & Analysis Capabilities

We provide specialized testing and analysis services beyond what conventional testing laboratories typically offer, including:

• Metallography Laboratory Analysis – Evaluates welding, brazing, soldering, other material joining techniques, and finished products for quality and integrity.

• Helium Leak Testing – Using highly sensitive mass spectrometer leak detectors, we locate and quantify leaks in materials and assemblies. With helium tracer gas, sensitivities up to 6E-11 atm cc/sec are achievable.

• Electrical Testing & Qualification – Determines the electrical integrity of assemblies operating in harsh and unusual environments, including high vacuum and elevated temperatures.

• Vacuum Integrity Testing – Assesses the suitability of materials and products for vacuum environments while analyzing outgassing from advanced materials, assemblies, and space hardware.

05/13/2026

VPE has experience with sputter coating, physical v***r deposition, vacuum deposition, and a variety of coating methods. As a result, we are sure to use the most appropriate technique for each application.

04/22/2026

Utilizing hydrogen, vacuum, argon, air, and controlled dew point furnaces, VPE provides a variety of heat treating services and other specialty thermal processes for standard and custom products. In addition, we have extensive experience processing materials for laser, UHV, spectrometer, particle physics apparatus, space hardware, as well as other critical devices.

Heat Treating Capabilities
Capabilities e.g.:

-Assembly weights in excess of 60,000 pounds
-Assembly sizes up to 60 inches in diameter and 120 inches in length
-Temperatures to 2000°C
-Vacuum baking to national laboratory standards
-Laser component pulse purge processing
-Precise dew point control processes for surface enhancement
-Hydrogen annealing

04/16/2026

Explore the innovation of VPE with our diffusion bonded microchannel heat exchanger technology, now available in a diverse range of smaller-sized, commercial off-the-shelf models. These compact and miniature heat exchangers not only outperform but also compete effectively with standard products like shell & tube, brazed plate, and welded plate heat exchangers. Elevate your thermal management with VPE's cutting-edge solutions in . Unleash the power of compact efficiency!

04/10/2026

Address

Sacramento, CA
95815

Website

http://www.vpei.com/

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