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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 Heat Treat


MMP has repeatedly proven their reliability by getting the job done right the first time; they have also taken the time to clarify instructions before proceeding which demonstrates a quality and service minded company.

Ada Sanday, Office Manager/Purchasing

Hydraulic Tubes & Fittings, LLC, Imlay City, Michigan

Our management team and entire staff are here to service your metal finishing needs. No job is too big or too small for us to handle.  Our customers value our expertise. and enjoy the team approach that we bring to working together, along with very open lines of communication.  We strive to be the best in the industry for Quality, Customer Service, Timely Deliveries.

You can be confident in our quality systems and guarantee that your parts are processed to meet your requirements. You and your customer benefit from the highest level of quality control procedures, documented by our AS9100 Rev C and ISO9001:2008 certification.

Every product (or group of products) is tested, tagged and documented.  Your parts are not leaving our shop until we absolutely know they are right!

The process is verified by using hardness testing, electrical conductivity or tensile data so you won’t have to worry about the accuracy of the final product.  You receive the exact metal conditions needed for your parts to be dependable and durable, above the minimum AMS hardness standard.

Statistical Process Control (SPC) is in effect and substantiated by tensile hardness testing and electrical conductivity testing with instruments traceable to the National Bureau of Standards (NBS).

Your advantage is our 30 years of experience in aluminum heat treating.   Computer systems alone cannot be relied upon to protect a piece from distortion.  With four options for quenching, we can minimize if not eliminate distortion.

Quenching Options

Cold Water/Cold Water Spray

  • Cold water dip quench:  3 tank sizes

Hot Water/Hot Water Spray

  • Hot water dip quench or Hot water spray:  2 tank sizes


  • Forced air quench:  64 inch (5.34 ft.) diameter x 72 inch (6 ft.)

  • Custom air quench option utilized to eliminate distortion following solution heat treatment in specific applications.

  • In addition to aluminum heat treat, you can benefit from our annealing and stress relief services that include both aluminum and steel weldments.

Production Cold Headed Parts                         Shelby Welded Aluminum Car Frame

Precipitation Aging


1 - Large Age Oven 20’ x 21’ x 8’ max temperature 450F°

You can't find a larger age oven available (hey - we've tried!) to get your parts processed in a hurry.  This size allows for incredible value and cost efficiency!

1 - Small Age Oven 8’ x 10’ x 8’ max temperature 450F°

Smaller volumes, fast efficient service to help you help your customers in a timely manner and yet at a great price!