{"id":1399,"date":"2026-03-17T04:46:37","date_gmt":"2026-03-17T04:46:37","guid":{"rendered":"https:\/\/www.atc-mould.com\/?p=1399"},"modified":"2026-03-17T04:46:37","modified_gmt":"2026-03-17T04:46:37","slug":"what-kind-of-surface-finish-does-cnc-machining-leave","status":"publish","type":"post","link":"https:\/\/www.atc-mould.com\/?p=1399","title":{"rendered":"What kind of surface finish does CNC machining leave?"},"content":{"rendered":"\n<p>Once the machining process is complete, the CNC parts surface will have slight visible tool marks, called \u201cas-machined\u201d or \u201cas-milled\u201d surface finish. Machined surface roughness (Ra) is standardized at 1.6-3.2 \u03bcm, and surface finish requirements can be increased to 0.8-1.6 \u03bcm or higher at 0.2-0.8 \u03bcm, however, this will require more operating time and higher costs.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Once the machining process is complete, the CNC parts surface will have slight visible tool marks, called \u201cas-machined\u201d or \u201cas-milled\u201d surface finish. Machined surface roughness (Ra) is standardized at 1.6-3.2 \u03bcm, and surface finish requirements can be increased to 0.8-1.6 \u03bcm or higher at 0.2-0.8 \u03bcm, however, this will require more operating time and higher [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1395,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1399","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.atc-mould.com\/index.php?rest_route=\/wp\/v2\/posts\/1399","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.atc-mould.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.atc-mould.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.atc-mould.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.atc-mould.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1399"}],"version-history":[{"count":1,"href":"https:\/\/www.atc-mould.com\/index.php?rest_route=\/wp\/v2\/posts\/1399\/revisions"}],"predecessor-version":[{"id":1400,"href":"https:\/\/www.atc-mould.com\/index.php?rest_route=\/wp\/v2\/posts\/1399\/revisions\/1400"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.atc-mould.com\/index.php?rest_route=\/wp\/v2\/media\/1395"}],"wp:attachment":[{"href":"https:\/\/www.atc-mould.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1399"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.atc-mould.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1399"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.atc-mould.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1399"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}