Vacuum sintering of stainless steels: how to choose the right sintering atmosphere

Stainless-steel components represent a large part of the market for sintered parts; they can be produced using many technologies and have a wide variety of applications such as automotive, biomedical industries, mechanical and fashion.

In this article we are going to discuss how sintering parameters, and especially the sintering atmosphere, may affect the quality achievable from sintered stainless-steel parts.
We’ll analyse the three gas options, and we’ll see that in some circumstances there are interesting alternatives that can fit your needs. Read on!

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Publié sur 4/12/2021
Catégories: Aérospatiale

AMS 2750F pyrometric requirements for heat treatments: calibrating process instrumentation

There are many innovations introduced by AMS (Aerospace Material Specifications) 2750 revision F concerning the process instrumentation.

We will analyze the 4 new requirements requested by the legislation and the necessary precautions regarding the instrumentation calibration.

We will conclude by listing in detail all the information to be reported on the instrument calibration certificates.

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Publié sur 2/9/2021
Catégories: Aérospatiale
Balises: Nadcap, Réception

AMS 2750F pyrometric requirements: what changes for the equipment of heat treatment furnaces

Revision F of the AMS (Aerospace Material Specifications) 2750 introduces three important changes concerning the equipment of the instrumentation of the heat treatment furnaces.

Which are the changes to the uniformity requirements required by the technical specifications of the process and by the technical specifications of the material?
How are the types of instrumentation of heat treatment plants classified?
And finally, what is the new D+ instrumentation type?

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Publié sur 12/14/2020
Catégories: Aérospatiale
Balises: Nadcap, Réception

AMS 2750F pyrometric requirements for heat treatments: what’s the comparative SAT

Revision F of the AMS (Aerospace Material Specifications) 2750 introduces many new features, in particular there are limitations on the alternate SAT and some conditions in which it is necessary to replace it with the comparative SAT.

What is the comparative SAT?
What are the operational procedures of the comparative SAT?
Is it possible to effectively measure the maintenance of the qualification performance of our plant and consequently the operational continuity?

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Publié sur 11/10/2020
Catégories: Aérospatiale

AMS 2750 pyrometric requirements for heat treatments: what's new in revision F

AMS 2750 (Aerospace Material Specifications) is an aerospace international specification which covers the pyrometric requirements for plants used for the heat treatment of metallic materials. Specifically, it covers temperature sensors, instrumentation, plant equipment, correction factors and offsets of instruments, system accuracy testing and temperature uniformity testing. These are necessary to ensure heat treatment of parts or raw materials in accordance with applicable specifications.

The AMS 2750 is now in revision F, was revision E from July 2012.

Let's see what’s new.

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