I recently read your blog about isothermal solidification (ITS). I want to be sure I understand how it relates to ordinary furnace brazing with the BNi-2 nickel filler metal we use, where the time at temperature is limited to only 10 minutes.

Brazing is a process of joining two or more metal parts by using a melted filler material commonly referred to as brazing alloy.

Solar Atmospheres of Western PA completed construction of a new brazing and assembly room. Though built primarily to accommodate a large aluminum brazing project for a specific customer, the room will be used for other brazing and assembly work. The temperature- and humidity-controlled room provides a clean environment for the critical assembly and alloying methods employed by Solar. All inventories of the clean components for final assemblies will be safely stored within the new space.

Picking up where we left off, here’s where the tiny size of the interstitial atom comes into play! Because it is so small, it is only weakly “bonded” into the BFM atomic structure and is thus able to quickly diffuse through that atomic structure.

Question: I have heard the terms "isothermal solidification" in reference to brazing, but I don’t really understand what it means or how to use it. Can you clarify this for me so that I can determine if it is something that I could use in some of my brazing operations?

A Q&A about honeycomb-seal brazing with Dan Kay.

I’ve heard people use the phrase “wiping the joint” when referring to brazing parts together. What does it mean, and when should it be used?

The second precaution necessary when brazing aluminum to stainless is...

We want to use our vacuum furnace to braze a 6061 aluminum part to a 400-series stainless steel but are concerned about whether that can be done in our furnace, which only is used for aluminum brazing.

Please note, first of all, that the aluminum-oxide layer on the surface of the aluminum is very thin – only about 40-angstroms thick! That’s VERY thin, since an angstrom is only about one ten-billionth of a meter thick.