Dear All,
As per my understanding Magnification for Macro exmination and what is reported in PQR are two different things. Maginification is what we should be evaluating any specific macro-section whether it is Tube to Tube sheet or any other cut piece. While the maginification of macro photo graph attached with PQRs is defined by many parameters likes printing/page size etc. The person who evaluated it, must have observed the macro specimen at required magnification but what he reported is based on photograph size.
Please do correct me if I am wrong.
Regards
On Thu, Nov 11, 2010 at 5:59 AM, Shashank Vagal <nach_sam@yahoo.com> wrote:
10x (also read 10X) is the limit for macro; the in-between magnification level choice is dependent on many factors related to the application, usually decided by the design engineer.
--- On Wed, 10/11/10, pavainathan <pavainathan@gmail.com> wrote:
From: pavainathan <pavainathan@gmail.com>
Subject: [MW:8179] Weld Macro examinationTo: "Materials & Welding" <materials-welding@googlegroups.com>Date: Wednesday, 10 November, 2010, 1:31 PM
Dear members,
I've a question about Macro examination in
PQR's. What is the minimum magnifcation level we need to have? ,is
there any reference standard/specification .
One of my client spec syas it must be x5 .I have come across with
various PQR review this magnification level is varying a range from
x2.7 ,x3.4,x4.0&x5.0.
Also is there any significance in referring the letter in small
case(x5) or Caps(X5)
Any one can put your expertise in this regard.
pavainathan
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