{"id":1108,"date":"2010-02-25T14:01:43","date_gmt":"2010-02-25T19:01:43","guid":{"rendered":"https:\/\/mightyrv.com\/wordpress\/?p=1108"},"modified":"2013-03-31T17:30:51","modified_gmt":"2013-03-31T21:30:51","slug":"mill-marks","status":"publish","type":"post","link":"https:\/\/mightyrv.com\/?p=1108","title":{"rendered":"Mill marks"},"content":{"rendered":"<p>A little bit of frustration over the last couple of days. When I started cleaning and prepping the F-705 parts fabricated from 2024-T4 bar stock, I noticed a lot of &#8220;mill marks&#8221; &#8211; gouges and scratches &#8211; that appear to be left over from the rolling process at the foundry. The stock was somewhat oxidized and dirty, and the marks weren&#8217;t apparent when I was fabricating bulkhead parts from it.<\/p>\n<p>One example of the &#8220;mill marks&#8221; &#8211; longitudinal gouges on an F-605C spar carrythrough doubler &#8211;<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/mightyrv.com\/wordpress\/wp-content\/uploads\/2012\/10\/fuse_F605C_face_gouge.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1109 aligncenter\" title=\"fuse_F605C_face_gouge\" alt=\"Milling marks in bar stock\" src=\"https:\/\/mightyrv.com\/wordpress\/wp-content\/uploads\/2012\/10\/fuse_F605C_face_gouge.jpg\" width=\"400\" height=\"300\" srcset=\"https:\/\/mightyrv.com\/wp-content\/uploads\/2012\/10\/fuse_F605C_face_gouge.jpg 400w, https:\/\/mightyrv.com\/wp-content\/uploads\/2012\/10\/fuse_F605C_face_gouge-300x225.jpg 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><\/p>\n<p>&#8230;and a gouge on the edge of the spar carrythrough strap itself &#8211;<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/mightyrv.com\/wordpress\/wp-content\/uploads\/2012\/10\/fuse_F705B_edge_gouge.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1110 aligncenter\" title=\"fuse_F705B_edge_gouge\" alt=\"Milling marks in bar stock\" src=\"https:\/\/mightyrv.com\/wordpress\/wp-content\/uploads\/2012\/10\/fuse_F705B_edge_gouge.jpg\" width=\"400\" height=\"300\" srcset=\"https:\/\/mightyrv.com\/wp-content\/uploads\/2012\/10\/fuse_F705B_edge_gouge.jpg 400w, https:\/\/mightyrv.com\/wp-content\/uploads\/2012\/10\/fuse_F705B_edge_gouge-300x225.jpg 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><\/p>\n<p>I had some phone and email conversations with Vans, who said that milling marks are normal. Nevertheless, I&#8217;m not really happy with using them for what I think would be a pretty structurally important part &#8211; maybe it&#8217;s just an attack of OCD on my part. I talked again with Scott Risan at Vans, and he offered to hand-pick good bar stock from their inventory and send me new material for free. Very cool!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A little bit of frustration over the last couple of days. When I started cleaning and prepping the F-705 parts fabricated from 2024-T4 bar stock, I noticed a lot of &#8220;mill marks&#8221; &#8211; gouges and scratches &#8211; that appear to &hellip; <a href=\"https:\/\/mightyrv.com\/?p=1108\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-1108","post","type-post","status-publish","format-standard","hentry","category-fuselage"],"_links":{"self":[{"href":"https:\/\/mightyrv.com\/index.php?rest_route=\/wp\/v2\/posts\/1108","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mightyrv.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mightyrv.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mightyrv.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mightyrv.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1108"}],"version-history":[{"count":2,"href":"https:\/\/mightyrv.com\/index.php?rest_route=\/wp\/v2\/posts\/1108\/revisions"}],"predecessor-version":[{"id":2023,"href":"https:\/\/mightyrv.com\/index.php?rest_route=\/wp\/v2\/posts\/1108\/revisions\/2023"}],"wp:attachment":[{"href":"https:\/\/mightyrv.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1108"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mightyrv.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1108"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mightyrv.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1108"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}