AMS2750F: Expert Analysis

AMS2750F, a rewrite of the specification that covers pyrometric requirements for equipment used for the thermal processing of metallic materials, was released at the end of June. Heat Treat Today asked a few experts in the aerospace industry to share their insights of this much anticipated revision that helps to better clarify issues with the previous revision. Specifically, Heat Treat Today wanted to know what they perceived to be the top 2-3 most important changes in revision F; what companies should do to prepare for these changes; and additional thoughts about the revision as it relates to aerospace heat treating.
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Demonstrating Oil Quenching Effectiveness

In this article by Lee Gearhart, Principal Engineer, Materials and Processes, Moog, Inc., Chair, Aerospace Metals Engineering Committee, read about a “real time” heat treat inquiry regarding the interpretation of changed oil quenching effectiveness testing in AMS2759, and Lee’s desire to ensure that the heat treater’s system maintains its effectiveness.
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11-Part Blog Series on Finding Leaks in Your Vacuum Furnace
Here's one of the more helpful and thorough treatments of finding and fixing vacuum leaks in a vacuum furnace. Authored by Ipsen, one of North America's leading vacuum furnace manufacturer, this 11-part series is well worth your time.
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Process Innovation to Reduce Distortion During Gas Quenching

High-pressure gas quenching (HPGQ) attempts to reduce temperature nonuniformities by reducing the cooling rate; however, this is generally not sufficient to eliminate shape change. Shape change can be predicted by heat treatment simulation software, but it is difficult to reproduce the exact same cooling conditions in the vessel for each batch. Therefore, the distortion of the components will not be consistent from batch to batch.

Read the case study to see one response to this issue in this original content from Heat Treat Today by Justin Sims, lead engineer at DANTE Solutions.
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Vacuum Measurement Units: A Language Explained

Vacuum gauges all measure the pressure readings in the range from atmospheric pressure down to some lower pressure approaching absolute zero pressure, which is not attainable. Some gauges read the complete range and others can only read a portion of the range, usually used for very low pressures.

In this Heat Treat Today Best of the Web feature, read how different vacuum measurement units are being used around the world today.
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Heat Treat Tips: Atmospheres, Gas Chambers, and Thermocouples
Here comes another set of heat treating tips from Heat Treat Today's 2019 Trade Show issue. 101 Heat Treat Tips is a great opportunity to learn the tips, tricks, and hacks shared by some of the industry’s foremost experts.

Today’s tips come to us from Nel Hydrogen covering atmospheric solutions and Wisconsin Oven Corporation with a tip on gas chamber issues. Additionally, Pelican Wire provides 4 quick tips on Thermocouples.
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Heat Treat Radio: A Discussion with David Wolff, Nel Hydrogen, COVID-19 Update
In this conversation, Heat Treat Radio host, Doug Glenn, speaks with David Wolff of Nel Hydrogen about how the COVID-19 pandemic has affected supply chains, specifically those relating to hydrogen generation. Listen to learn more about what risks the supply chain for hydrogen is facing, how the ongoing crisis may affect supply and employee safety, and what the benefits of on-site hydrogen are during this unusual time.
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