Shown in Fig. 1 is a drawing of an aluminum part that is to be vacuum-brazed. Are all the drawing callouts correct from a brazing perspective? Please examine the drawing carefully, and see if you can correctly find seven (7) things that are wrong with that assembly drawing. You’ll find things in the procedure-notes, and perhaps in the design itself. Send your list of “findings” to dan.kay (at) kaybrazing.com. A description of each of these seven items will be discussed in detail in next month’s article (“Brazing-Drawing Challenge, Part 2) so that you can see what I strongly recommend that you should NOT do when vacuum brazing aluminum parts.
If you have attended one of my intensive 3-day brazing-training seminars, then you should be able to locate all of the mistakes. But if you haven’t attended one of my programs, then I hope you’ll find this to be an interesting challenge for you.
The person who is the first to correctly identify the “problems” in this assembly-drawing will be recognized personally in this column next month, and will also qualify for a 10% discount on a seminar-registration (That’s worth more than US$ 195) for themselves (or for one of their fellow workers at the same work-location) to attend either one of my two (2) brazing training seminars this fall in either Spartanburg, South Carolina (Oct.1-3) or in Simsbury, Connecticut (Nov. 9-11).