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  1. johnh

    Material types in AMS 5561 steel

    Thanks for the help. The customer is a major UK/US aerospace manufacturer so should be working to the latest revision specs. However, the query came from the customer's buying department - they believed there could be cost reductions to be made by using seamless rather that welded & drawn tube.
  2. johnh

    Material types in AMS 5561 steel

    Hi to All, I have a customer requirement for AMS 5561B Type 1 Class 1 tube; the customer says that the tube must be drawn NOT welded. However, Para 3.3 (Fabrication) of AMS 5561B states that "Tubing shall be produced by a welded and drawn process." Also, AMS 5561B doesn't reference any Types...
  3. johnh

    Brazing of aluminium to inconel

    Thanks, these are good background information but I was hoping that someone had experience of joining aluminium to inconel. We have quite a lot of experience with torch/induction brazing of aluminium alloys and inconel alloys but have never brazed the two together. We have a customer who is...
  4. johnh

    Brazing of aluminium to inconel

    Hi All, Has anyone any experience of brazing aluminium alloy to inconel?
  5. johnh

    Drawing Standards

    I work as a sub-contractor for both the aerospace and automotive industries and, generally speaking, most company specifications state that drawings released for manufacture should be to a "letter" revision. Pre-production drawings are normally given a "number" issue until...

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