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Customer Comments

Textron Defense Systems

TDS sincerely congratulates Modern Metal Processing for the quality of your efforts and for your clearly demonstrated subject matter expertise.  In addition TDS is very grateful for MMPI's responsiveness and execution relative to the communicated schedule urgency.  TDS has determined that MMPI has diligently satisfied all of the Purchase Order requirements, with excellence.  TDS looks forward to employing MMPI and your aluminum brazing expertise in the future.  Very truly yours, 

Paul Perry, Sr. Manager, Production and Development Subcontracts, Textron Defense Systems, Wilmington, MA

Tel-X Corporation

We have recently had work done by your company.  The work looked great and the timing was good also.  Your team made every effort to accommodate us and succeeded.  Although it is not common for us to need these services it does come up once in a while.  Your company will be remembered for any future work we may receive. Thank you for a job well done.

Mike Logan, General Manager, Tel-X Corporation, Garden City, MI

Aluminum Brazing


“MMP has brazed prototype and pre-production components for various complex thermal systems being developed at Rocky Research. The quality of workmanship from MMP has been high, and parts have always been delivered on time, often to demanding schedule. For prototype work, the most significant value in working with MMP has been their willingness to (1) discuss design and brazing considerations for each job, (2) to suggest design changes that have improved our components as well as making them more easily brazed, and (3) to braze single items and small quantities. Rocky Research will continue to rely on MMP for prototype and production brazing and for their expertise in designing brazed assemblies.”

Lance Kirol, Senior Engineering Analyst, Rocky Research, Boulder City, Nevada

Aluminum Vacuum Brazing:

  • A partnership with you to achieve the desired result via consultation and coordination.

  • To work with you to improve the design of parts and lower overall brazing costs.

  • To use our extensive national network of aluminum vacuum brazing experts to structure your project for maximum efficiency and success.

  • Security and confidentiality for all aspects of your project.

  • A clean metallurgical bond to your exact specifications.  Every part will be inspected and hand-cleaned prior to shipping.

Vacuum Aluminum Brazing

Vacuum aluminum brazing is a vacuum furnace joining process that specifically involves aluminum and various aluminum alloys. Since it takes place in a vacuum, the brazing process occurs significantly below atmospheric pressure. When compared with other processes, this joining technique offers significant advantages: durable, flux-free aluminum joints that will not bend or break under intensive pressure. During the vacuum heating process itself, the aluminum’s temperature is stringently kept at a single level. Using slow heating and cooling cycles, this technique allows for any lingering stresses on the aluminum to be drastically reduced.

Vacuum aluminum brazing is chiefly executed by means of a furnace, meaning that different joints can be combined all at once even as the overall aluminum part reaches its necessary brazing temperature. It also means that thin and thick part cross-sections can be easily joined together.  The heat is then transferred from the furnace heating elements to the aluminum component via radiation.

Vacuum brazing is a high-end joining technology because it results in parts with extremely strong joints and with no residual corrosive flux. It is a process in which two base metals, such as aluminum plates, are joined together using a filler metal that has a melting point below that of the base metal. The filler metal, also known as a braze alloy, is drawn into the closely mated parallel surfaces of the aluminum plates by capillary action. The attributes of the vacuum brazing process include uniform heating, tight temperature control, no post cleaning processes, and process repeatability.

Vacuum Aluminum Brazing (CAB) Controlled Atmosphere Brazing

CAB Brazing specializes vacuum aluminum brazing, using nitrogen to control the atmosphere during the brazing process. 

Either process can be used to meet different challenges of aluminum brazing, giving you successful options.