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Message ID: 358     Entry time: Thu May 9 16:07:18 2019
Author: Stephen 
Type: Mechanics 
Category: General 
Subject: Improvements to OMC Bonding Fixture 

[Stephen, Koji]

As mentioned in eLOG 331, either increased thermal cycling or apparent improvements in cured EP30-2 strength led to fracture of curved mirrors at unintended locations of bonding to the PEEK fixture parts.

The issue and intended resolution is summarized in the attached images (2 different visualizations of the same item).

Redline has been posted to D1600336-v3.

Drawing update will be processed shortly, and parts will be modified to D1600336-v4.


Attachment 1: image_of_issue_with_OMC_PZT_bonding_fixture_from_D16003336-v3.png  15 kB  Uploaded Thu May 9 17:23:21 2019  | Hide | Hide all
Attachment 2: image_02_of_issue_with_OMC_PZT_bonding_fixture_from_D16003336-v3.PNG  206 kB  Uploaded Thu May 9 17:23:32 2019  | Hide | Hide all
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