{"id":2513,"date":"2026-09-24T18:03:46","date_gmt":"2026-09-24T10:03:46","guid":{"rendered":"https:\/\/www.jccncmachining.com\/?p=2513"},"modified":"2026-09-22T11:16:41","modified_gmt":"2026-09-22T03:16:41","slug":"%d8%b1%d9%85%d9%88%d8%b2-%d8%a7%d9%84%d9%85%d9%84%d9%85%d8%b3-%d8%a7%d9%84%d8%b3%d8%b7%d8%ad%d9%8a-iso-21920","status":"publish","type":"post","link":"https:\/\/www.jccncmachining.com\/ar\/blog\/iso-21920-surface-texture-symbols\/","title":{"rendered":"\u0647\u0644 \u0645\u0627 \u0632\u0644\u062a \u062a\u0642\u0631\u0623 \u0631\u0645\u0648\u0632 \u062a\u0634\u0637\u064a\u0628 \u0627\u0644\u0633\u0637\u062d \u0628\u0637\u0631\u064a\u0642\u0629 ISO 1302\u061f"},"content":{"rendered":"<p><!-- WP Title \/ H1: Still Reading Surface Finish Symbols the ISO 1302 Way? --><\/p>\n<article style=\"font-size: 16px; line-height: 1.85; color: #222;\">\u0631\u0645\u0632 \u0627\u0644\u0645\u0644\u0645\u0633 \u0627\u0644\u0633\u0637\u062d\u064a \u0644\u064a\u0633 \u0627\u062e\u062a\u0635\u0627\u0631\u064b\u0627 \u0644\u0640 \u201c\u0627\u062c\u0639\u0644\u0647 \u0646\u0627\u0639\u0645\u064b\u0627\u201d. \u0625\u0646\u0647 \u064a\u062d\u062f\u062f \u0643\u064a\u0641\u064a\u0629 \u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0633\u0637\u062d \u0648\u062a\u0642\u064a\u064a\u0645\u0647: \u0642\u062f \u062a\u0624\u062b\u0631 \u0627\u0644\u0645\u0639\u0644\u0645\u0629\u060c \u0648\u0627\u0644\u062d\u062f\u060c \u0648\u0627\u0644\u0645\u0631\u0634\u062d \u0623\u0648 \u0645\u0624\u0634\u0631 \u0627\u0644\u062a\u062f\u0627\u062e\u0644\u060c \u0648\u0637\u0648\u0644 \u0627\u0644\u062a\u0642\u064a\u064a\u0645\u060c \u0648\u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u062a\u0635\u0646\u064a\u0639\u060c \u0648\u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u062e\u0637\u0648\u0637 \u062c\u0645\u064a\u0639\u0647\u0627 \u0639\u0644\u0649 \u0627\u0644\u0642\u0628\u0648\u0644. \u062a\u062d\u0643\u0645 ISO 21920-1:2021 \u0627\u0644\u0622\u0646 \u0627\u0644\u0625\u0634\u0627\u0631\u0629 \u0625\u0644\u0649 \u0627\u0644\u0645\u0644\u0645\u0633 \u0627\u0644\u0633\u0637\u062d\u064a \u0644\u0644\u0645\u0642\u0637\u0639 \u0641\u064a \u0648\u062b\u0627\u0626\u0642 \u0627\u0644\u0645\u0646\u062a\u062c \u0627\u0644\u062a\u0642\u0646\u064a\u0629\u060c \u0644\u0630\u0627 \u0641\u0625\u0646 \u0646\u0633\u062e \u0645\u0644\u0627\u062d\u0638\u0629 ISO 1302 \u0642\u062f\u064a\u0645\u0629 \u0625\u0644\u0649 \u0631\u0633\u0645 CNC \u062c\u062f\u064a\u062f \u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u062d\u0627\u0641\u0638 \u0639\u0644\u0649 \u0627\u0641\u062a\u0631\u0627\u0636\u0627\u062a \u0642\u062f\u064a\u0645\u0629 \u0623\u0648 \u063a\u064a\u0631 \u0645\u0643\u062a\u0645\u0644\u0629.<\/p>\n<p>\u0627\u0644\u0647\u062f\u0641 \u0627\u0644\u0647\u0646\u062f\u0633\u064a \u0644\u064a\u0633 \u062a\u062d\u062f\u064a\u062b \u0627\u0644\u0631\u0645\u0648\u0632 \u0644\u0644\u0645\u0638\u0647\u0631. \u0628\u0644 \u0647\u0648 \u0636\u0645\u0627\u0646 \u0623\u0646 \u0627\u0644\u062a\u0635\u0645\u064a\u0645 \u0648\u0627\u0644\u062a\u0635\u0646\u064a\u0639 \u0648\u0627\u0644\u0641\u062d\u0635 \u062a\u0633\u062a\u062e\u062f\u0645 \u0646\u0641\u0633 \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0629. \u0642\u062f \u064a\u0643\u0648\u0646 \u201cRa 0.8\u201d \u0648\u062d\u062f\u0647 \u0645\u0623\u0644\u0648\u0641\u064b\u0627\u060c \u0644\u0643\u0646\u0647 \u0644\u0627 \u064a\u0632\u0627\u0644 \u064a\u062a\u0631\u0643 \u0639\u062f\u0645 \u064a\u0642\u064a\u0646 \u0643\u0627\u0641\u064d \u0644\u062c\u0647\u0627\u0632\u064a\u0646 \u0623\u0648 \u0645\u0648\u0631\u062f\u064a\u0646 \u0645\u062e\u062a\u0644\u0641\u064a\u0646 \u0644\u0644\u0625\u0628\u0644\u0627\u063a \u0639\u0646 \u0646\u062a\u0627\u0626\u062c \u0645\u062e\u062a\u0644\u0641\u0629.<\/p>\n<h2 style=\"font-size: 28px; line-height: 1.35; margin-top: 38px;\">\u0641\u0643 \u0631\u0645\u0632 \u0627\u0644\u0627\u0633\u062a\u062f\u0639\u0627\u0621 \u0628\u062a\u0631\u062a\u064a\u0628 \u062b\u0627\u0628\u062a<\/h2>\n<p><img decoding=\"async\" width=\"1024\" height=\"576\" loading=\"lazy\" src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-1-callout-decoding-1024x576.webp\" alt=\"callout-decoding\" class=\"size-large wp-image-2598 aligncenter\" \/>\n\u0639\u0646\u062f \u0648\u0635\u0648\u0644 \u0645\u062a\u0637\u0644\u0628 \u0633\u0637\u062d\u064a\u060c \u0644\u0627 \u062a\u0646\u062a\u0642\u0644 \u0645\u0628\u0627\u0634\u0631\u0629 \u0625\u0644\u0649 \u0639\u0645\u0644\u064a\u0629 \u062a\u0635\u0646\u064a\u0639. \u0627\u0642\u0631\u0623 \u0631\u0645\u0632 \u0627\u0644\u0627\u0633\u062a\u062f\u0639\u0627\u0621 \u0645\u0646 \u0645\u0639\u064a\u0627\u0631\u0647 \u0627\u0644\u062d\u0627\u0643\u0645 \u0625\u0644\u0649 \u0627\u0644\u062e\u0627\u0631\u062c:\n\n\n<ol srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-1-callout-decoding-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-1-callout-decoding-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-1-callout-decoding-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-1-callout-decoding-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-1-callout-decoding-18x10.webp 18w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-1-callout-decoding-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-1-callout-decoding.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\n<li>\u062a\u0623\u0643\u062f \u0645\u0646 \u0627\u0644\u0645\u0639\u064a\u0627\u0631 \u0648\u0627\u0644\u0637\u0628\u0639\u0629 \u0627\u0644\u0645\u0634\u0627\u0631 \u0625\u0644\u064a\u0647\u0645\u0627 \u0641\u064a \u0627\u0644\u0631\u0633\u0645.<\/li>\n<li>\u062d\u062f\u062f \u0645\u0627 \u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u0625\u0632\u0627\u0644\u0629 \u0627\u0644\u0645\u0648\u0627\u062f \u0645\u0637\u0644\u0648\u0628\u0629 \u0623\u0648 \u0645\u0633\u0645\u0648\u062d\u064b\u0627 \u0628\u0647\u0627 \u0623\u0648 \u0645\u062d\u0638\u0648\u0631\u0629.<\/li>\n<li>\u0627\u0642\u0631\u0623 \u0645\u0639\u0644\u0645\u0629 \u0627\u0644\u0645\u0644\u0645\u0633 \u0648\u0627\u0644\u062d\u062f \u0627\u0644\u0623\u0639\u0644\u0649 \u0623\u0648 \u0627\u0644\u0623\u062f\u0646\u0649 \u0623\u0648 \u062d\u062f \u0627\u0644\u0642\u0628\u0648\u0644.<\/li>\n<li>\u062a\u0623\u0643\u062f \u0645\u0646 \u0627\u0644\u0645\u0631\u0634\u062d \u0623\u0648 \u0645\u0624\u0634\u0631 \u0627\u0644\u062a\u062f\u0627\u062e\u0644 \u0648\u0634\u0631\u0648\u0637 \u0627\u0644\u062a\u0642\u064a\u064a\u0645.<\/li>\n<li>\u062a\u062d\u0642\u0642 \u0645\u0646 \u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u062e\u0637\u0648\u0637\u060c \u0648\u0633\u0645\u0627\u062d \u0627\u0644\u062a\u0635\u0646\u064a\u0639\u060c \u0648\u0642\u064a\u0648\u062f \u0627\u0644\u0639\u0645\u0644\u064a\u0629\u060c \u0648\u0645\u062f\u0649 \u0627\u0644\u0633\u0637\u062d \u0627\u0644\u062e\u0627\u0636\u0639 \u0644\u0644\u062a\u062d\u0643\u0645.<\/li>\n<li>\u0627\u062a\u0641\u0642 \u0639\u0644\u0649 \u0645\u0643\u0627\u0646 \u0648\u0627\u062a\u062c\u0627\u0647 \u0642\u064a\u0627\u0633 \u0627\u0644\u0633\u0637\u062d.<\/li>\n<\/ol>\n<p>\u0647\u0630\u0627 \u0641\u0631\u0639 \u0645\u062d\u062f\u062f \u0645\u0646 <a href=\"https:\/\/www.jccncmachining.com\/ar\/%d9%85%d8%af%d9%88%d9%86%d8%a9\/cnc-machining-standards\/\">\u0645\u0639\u0627\u064a\u064a\u0631 \u062a\u0635\u0646\u064a\u0639 CNC<\/a> \u0645\u0648\u0636\u0648\u0639 \u0627\u0644\u0645\u0648\u0642\u0639 \u0627\u0644\u0623\u0648\u0633\u0639. \u0648\u0647\u0648 \u0644\u0627 \u064a\u062d\u0644 \u0645\u062d\u0644 \u0627\u0644\u062a\u0641\u0627\u0648\u062a\u0627\u062a \u0627\u0644\u0639\u0627\u0645\u0629 \u0644\u0644\u0631\u0633\u0645\u060c \u0623\u0648 \u0636\u0648\u0627\u0628\u0637 \u0627\u0644\u0647\u0646\u062f\u0633\u0629\u060c \u0623\u0648 \u0645\u0648\u0627\u0635\u0641\u0629 \u0627\u0644\u062a\u0634\u0637\u064a\u0628\/\u0627\u0644\u0637\u0644\u0627\u0621.<\/p>\n<h2 style=\"font-size: 28px; line-height: 1.35; margin-top: 38px;\">\u0645\u0627 \u0627\u0644\u0630\u064a \u062a\u063a\u064a\u0631 \u0645\u0646 ISO 1302 \u0625\u0644\u0649 ISO 21920\u061f<\/h2>\n<p><img decoding=\"async\" width=\"1024\" height=\"576\" loading=\"lazy\" src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-2-iso-standard-migration-1024x576.webp\" alt=\"iso-standard-migration\" class=\"size-large wp-image-2591 aligncenter\" \/>\n\u064a\u0638\u0644 ISO 1302 \u0634\u0627\u0626\u0639\u064b\u0627 \u0641\u064a \u0627\u0644\u0631\u0633\u0648\u0645\u0627\u062a \u0627\u0644\u0642\u062f\u064a\u0645\u0629 \u0648\u0641\u064a \u0642\u0648\u0627\u0644\u0628 \u0627\u0644\u0634\u0631\u0643\u0627\u062a\u060c \u0644\u0643\u0646 ISO 21920 \u0623\u0639\u0627\u062f \u062a\u0646\u0638\u064a\u0645 \u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0646\u0633\u064a\u062c \u0627\u0644\u0633\u0637\u062d \u0644\u0644\u0645\u0642\u0637\u0639 \u0627\u0644\u062c\u0627\u0646\u0628\u064a \u0648\u0642\u064a\u0627\u0633\u0647 \u0648\u062a\u0639\u0631\u064a\u0641\u0627\u062a \u0627\u0644\u0645\u0639\u0627\u0645\u0644\u0627\u062a \u0641\u064a \u0633\u0644\u0633\u0644\u0629 \u0623\u062d\u062f\u062b. \u064a\u063a\u0637\u064a ISO 21920-1 \u0627\u0644\u0625\u0634\u0627\u0631\u0629 \u0641\u064a \u0648\u062b\u0627\u0626\u0642 \u0627\u0644\u0645\u0646\u062a\u062c \u0627\u0644\u0641\u0646\u064a\u0629\u061b \u0648\u064a\u062a\u0646\u0627\u0648\u0644 \u0627\u0644\u062c\u0632\u0621\u0627\u0646 2 \u06483 \u0627\u0644\u0645\u0635\u0637\u0644\u062d\u0627\u062a \u0648\u0627\u0644\u062a\u0639\u0631\u064a\u0641\u0627\u062a \u0648\u0627\u0644\u0645\u0639\u0627\u0645\u0644\u0627\u062a \u0648\u0645\u0634\u063a\u0651\u0644\u0627\u062a \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a.\n\n\u0648\u0644\u0627 \u064a\u0642\u062a\u0635\u0631 \u0627\u0644\u0627\u0646\u062a\u0642\u0627\u0644 \u0639\u0644\u0649 \u0634\u0643\u0644 \u0631\u0645\u0632 \u062c\u062f\u064a\u062f \u0641\u062d\u0633\u0628\u060c \u0628\u0644 \u064a\u0637\u0644\u0628 \u0645\u0646 \u0645\u0639\u062f\u0651\u064a \u0627\u0644\u0631\u0633\u0648\u0645\u0627\u062a \u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0629 \u0628\u0633\u064a\u0627\u0642 \u0642\u064a\u0627\u0633 \u0643\u0627\u0641\u064d \u0644\u0644\u062d\u0635\u0648\u0644 \u0639\u0644\u0649 \u0642\u0631\u0627\u0631\u0627\u062a \u0642\u0627\u0628\u0644\u0629 \u0644\u0644\u062a\u0643\u0631\u0627\u0631. \u0648\u064a\u0630\u0643\u0631 \u0627\u0644\u0645\u062f\u062e\u0644 \u0627\u0644\u0631\u0633\u0645\u064a \u0644\u0645\u0646\u0638\u0645\u0629 ISO \u0644\u0644\u0645\u0648\u0627\u0635\u0641\u0629 <a href=\"https:\/\/www.iso.org\/standard\/72196.html\" target=\"_blank\" rel=\"nofollow noopener\" srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-2-iso-standard-migration-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-2-iso-standard-migration-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-2-iso-standard-migration-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-2-iso-standard-migration-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-2-iso-standard-migration-18x10.webp 18w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-2-iso-standard-migration-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-2-iso-standard-migration.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>ISO 21920-1:2021<\/a> \u0623\u0646\u0647\u0627 \u062a\u062d\u062f\u062f \u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0625\u0634\u0627\u0631\u0629 \u0625\u0644\u0649 \u0646\u0633\u064a\u062c \u0627\u0644\u0633\u0637\u062d \u0628\u0637\u0631\u0642 \u0627\u0644\u0645\u0642\u0637\u0639 \u0627\u0644\u062c\u0627\u0646\u0628\u064a \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0631\u0645\u0648\u0632 \u0631\u0633\u0648\u0645\u064a\u0629.<\/p>\n<table style=\"width: 100%; border-collapse: collapse; margin: 22px 0;\">\n<thead>\n<tr>\n<th style=\"border: 1px solid #d8dee4; padding: 10px; text-align: left;\">\u0645\u062e\u0627\u0637\u0631 \u0627\u0644\u0631\u0633\u0648\u0645\u0627\u062a \u0627\u0644\u0642\u062f\u064a\u0645\u0629<\/th>\n<th style=\"border: 1px solid #d8dee4; padding: 10px; text-align: left;\">\u0625\u062c\u0631\u0627\u0621 \u0627\u0644\u0627\u0646\u062a\u0642\u0627\u0644<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #d8dee4; padding: 10px;\">\u0644\u0627 \u064a\u0630\u0643\u0631 \u0645\u0631\u0628\u0639 \u0627\u0644\u0639\u0646\u0648\u0627\u0646 \u0623\u064a \u0645\u0648\u0627\u0635\u0641\u0629 \u0644\u0646\u0633\u064a\u062c \u0627\u0644\u0633\u0637\u062d<\/td>\n<td style=\"border: 1px solid #d8dee4; padding: 10px;\">\u062d\u062f\u0651\u062f \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0629 \u0627\u0644\u062d\u0627\u0643\u0645\u0629 \u0648\u0637\u0628\u0639\u062a\u0647\u0627<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #d8dee4; padding: 10px;\">\u064a\u064f\u0639\u0631\u0636 \u0631\u0642\u0645 Ra \u0641\u0642\u0637<\/td>\n<td style=\"border: 1px solid #d8dee4; padding: 10px;\">\u0631\u0627\u062c\u0639 \u0627\u0644\u0645\u0639\u0627\u0645\u0644 \u0648\u0627\u0644\u062d\u062f \u0648\u0627\u0644\u0645\u0631\u0634\u0651\u062d \u0648\u0627\u0644\u062a\u0642\u064a\u064a\u0645 \u0648\u0627\u0644\u0648\u0638\u064a\u0641\u0629<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #d8dee4; padding: 10px;\">\u064a\u064f\u0646\u0633\u062e \u0631\u0645\u0632 \u0627\u0644\u0634\u0631\u0643\u0629 \u0627\u0644\u0642\u062f\u064a\u0645 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href=\"https:\/\/www.jccncmachining.com\/ar\/%d9%85%d8%af%d9%88%d9%86%d8%a9\/cnc-surface-roughness\/\">\u062e\u0634\u0648\u0646\u0629 \u0633\u0637\u062d CNC<\/a> \u064a\u0633\u062a\u0643\u0634\u0641 \u0627\u0644\u0639\u0644\u0627\u0642\u0629 \u0628\u064a\u0646 Ra \u0648\u0627\u0644\u0648\u0638\u064a\u0641\u0629 \u0648\u0627\u0644\u062a\u0635\u0646\u064a\u0639 \u0627\u0644\u0622\u0644\u064a \u0648\u0627\u0644\u062a\u0643\u0644\u0641\u0629. \u062a\u0631\u0643\u0632 \u0647\u0630\u0647 \u0627\u0644\u0635\u0641\u062d\u0629 \u0639\u0644\u0649 \u062a\u062d\u0648\u064a\u0644 \u0646\u064a\u0629 \u0627\u0644\u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u0647\u0646\u062f\u0633\u064a\u0629 \u0647\u0630\u0647 \u0625\u0644\u0649 \u0625\u0634\u0627\u0631\u0629 \u0631\u0633\u0645 \u062d\u062f\u064a\u062b\u0629.<\/p>\n<h2 style=\"font-size: 28px; line-height: 1.35; margin-top: 38px;\">\u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u063a\u064a\u0651\u0631 \u0625\u0639\u062f\u0627\u062f\u0627\u062a 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\u0627\u0644\u0627\u0646\u0642\u0637\u0627\u0639\u0627\u062a \u0623\u0648 \u0627\u0644\u0627\u0646\u062d\u0646\u0627\u0621\u0627\u062a \u0623\u0648 \u0627\u0644\u062b\u0642\u0648\u0628 \u0623\u0648 \u0627\u0644\u0623\u062e\u0627\u062f\u064a\u062f \u0645\u062a\u0627\u062d\u0629 \u0644\u0644\u062c\u0647\u0627\u0632\u061f<\/li>\n<li>\u0647\u0644 \u064a\u062a\u0645 \u0627\u0644\u0642\u064a\u0627\u0633 \u0642\u0628\u0644 \u0623\u0648 \u0628\u0639\u062f \u0627\u0644\u0637\u0644\u0627\u0621 \u0623\u0648 \u0627\u0644\u062a\u0644\u0645\u064a\u0639 \u0623\u0648 \u0627\u0644\u0633\u0641\u0639 \u0627\u0644\u0631\u0645\u0644\u064a \u0623\u0648 \u0623\u064a \u0645\u0639\u0627\u0644\u062c\u0629 \u0644\u0627\u062d\u0642\u0629 \u0623\u062e\u0631\u0649\u061f<\/li>\n<\/ul>\n<p>\u0642\u062f \u062a\u062d\u062a\u0627\u062c \u0627\u0644\u062a\u062c\u0627\u0648\u064a\u0641 \u0627\u0644\u0635\u063a\u064a\u0631\u0629 \u0648\u0627\u0644\u0623\u062e\u0627\u062f\u064a\u062f \u0627\u0644\u0636\u064a\u0642\u0629 \u0625\u0644\u0649 \u0637\u0631\u0642 \u0627\u0644\u0646\u0633\u062e \u0627\u0644\u0645\u062a\u0645\u0627\u062b\u0644\u060c \u0623\u0648 \u0645\u062c\u0633\u0627\u062a \u0645\u062a\u062e\u0635\u0635\u0629\u060c \u0623\u0648 \u0642\u064a\u0627\u0633 \u0628\u0635\u0631\u064a\u060c \u0623\u0648 \u0645\u062a\u0637\u0644\u0628 \u0648\u0638\u064a\u0641\u064a \u0628\u062f\u0644\u0627\u064b \u0645\u0646 \u0623\u062b\u0631 \u0645\u0633\u0628\u0627\u0631 \u062a\u0642\u0644\u064a\u062f\u064a. \u062d\u062f\u062f \u0634\u064a\u0626\u064b\u0627 \u064a\u0645\u0643\u0646 \u0644\u0644\u0645\u0648\u0631\u062f \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646\u0647 \u0639\u0644\u0649 \u0627\u0644\u0634\u0643\u0644 \u0627\u0644\u0647\u0646\u062f\u0633\u064a \u0627\u0644\u0641\u0639\u0644\u064a.<\/p>\n<h2 style=\"font-size: 28px; line-height: 1.35; margin-top: 38px;\">\u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u0646\u0642\u0634\u0629 \u064a\u0646\u062a\u0645\u064a \u0625\u0644\u0649 \u0627\u0644\u0642\u0631\u0627\u0631 \u0627\u0644\u0647\u0646\u062f\u0633\u064a<\/h2>\n<p><img decoding=\"async\" width=\"1024\" height=\"576\" loading=\"lazy\" src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-5-lay-direction-1024x576.webp\" alt=\"lay-direction\" class=\"size-large wp-image-2593 aligncenter\" \/>\n\u062a\u0646\u0634\u0626 \u0645\u0633\u0627\u0631\u0627\u062a \u0627\u0644\u0623\u062f\u0648\u0627\u062a \u0627\u0644\u0627\u062a\u062c\u0627\u0647. \u0639\u0627\u062f\u0629\u064b \u0645\u0627 \u064a\u0646\u062a\u062c \u0627\u0644\u062e\u0631\u0627\u0637\u0629 \u0639\u0644\u0627\u0645\u0627\u062a \u0645\u062d\u064a\u0637\u064a\u0629 \u0623\u0648 \u062d\u0644\u0632\u0648\u0646\u064a\u0629\u061b \u0648\u064a\u064f\u0646\u0634\u0626 \u0627\u0644\u062a\u0641\u0631\u064a\u0632 \u0627\u0644\u0648\u062c\u0647\u064a \u0623\u0642\u0648\u0627\u0633\u064b\u0627 \u0623\u0648 \u0623\u0646\u0645\u0627\u0637\u064b\u0627 \u0645\u062a\u0642\u0627\u0637\u0639\u0629\u061b \u0648\u064a\u062a\u0628\u0639 \u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u062a\u062c\u0644\u064a\u062d \u062d\u0631\u0643\u0629 \u0627\u0644\u0639\u062c\u0644\u0629\u061b \u0648\u064a\u064f\u0646\u0634\u0626 \u0627\u0644\u062a\u0641\u0631\u064a\u0634 \u0639\u0646 \u0642\u0635\u062f \u0646\u0633\u064a\u062c\u064b\u0627 \u0628\u0635\u0631\u064a\u064b\u0627. \u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u0624\u062b\u0631 \u0647\u0630\u0627 \u0627\u0644\u0627\u062a\u062c\u0627\u0647 \u0639\u0644\u0649 \u0627\u0644\u0625\u062d\u0643\u0627\u0645 \u0648\u0627\u0644\u0627\u062d\u062a\u0643\u0627\u0643 \u0648\u0627\u0644\u062a\u0622\u0643\u0644 \u0648\u0627\u0644\u0645\u0638\u0647\u0631 \u0627\u0644\u0628\u0635\u0631\u064a \u0648\u062d\u0631\u0643\u0629 \u0627\u0644\u0633\u0648\u0627\u0626\u0644.\n\n\u0625\u0630\u0627 \u0643\u0627\u0646 \u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u0646\u0642\u0634\u0629 \u0645\u0647\u0645\u064b\u0627\u060c \u0641\u0627\u0630\u0643\u0631\u0647 \u0628\u0627\u0644\u0631\u0645\u0632 \u0627\u0644\u0645\u0646\u0627\u0633\u0628 \u0648\u062d\u062f\u062f \u0627\u0644\u0645\u0646\u0637\u0642\u0629 \u0627\u0644\u062e\u0627\u0636\u0639\u0629 \u0644\u0644\u062a\u062d\u0643\u0645. \u0644\u0627 \u062a\u0641\u062a\u0631\u0636 \u0623\u0646 \u201cRa 0.8\u201d \u064a\u062e\u0628\u0631 \u0645\u0634\u063a\u0651\u0644 \u0627\u0644\u0645\u0627\u0643\u064a\u0646\u0629 \u0645\u0627 \u0625\u0630\u0627 \u0643\u0627\u0646 \u0633\u0637\u062d \u0627\u0644\u0625\u062d\u0643\u0627\u0645 \u0642\u062f \u064a\u064f\u0638\u0647\u0631 \u0645\u0633\u0627\u0631\u064b\u0627 \u062d\u0644\u0632\u0648\u0646\u064a\u064b\u0627. \u0625\u0630\u0627 \u0644\u0645 \u064a\u0643\u0646 \u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u0646\u0642\u0634\u0629 \u0645\u0647\u0645\u064b\u0627\u060c \u0641\u062a\u062c\u0646\u0628 \u0625\u0636\u0627\u0641\u0629 \u0645\u062a\u0637\u0644\u0628 \u064a\u0641\u0631\u0636 \u0639\u0645\u0644\u064a\u0629 \u062e\u0627\u0635\u0629 \u062f\u0648\u0646 \u0641\u0627\u0626\u062f\u0629 \u0648\u0638\u064a\u0641\u064a\u0629.\n\n\n<h2 style=\"font-size: 28px; line-height: 1.35; margin-top: 38px;\" srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-5-lay-direction-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-5-lay-direction-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-5-lay-direction-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-5-lay-direction-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-5-lay-direction-18x10.webp 18w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-5-lay-direction-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-5-lay-direction.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>Match the requirement to a realistic manufacturing route<\/h2>\n<p><img decoding=\"async\" width=\"1024\" height=\"576\" loading=\"lazy\" src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-6-manufacturing-route-1024x576.webp\" alt=\"manufacturing-route\" class=\"size-large wp-image-2594 aligncenter\" \/>\n<table style=\"width: 100%; border-collapse: collapse; margin: 22px 0;\" srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-6-manufacturing-route-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-6-manufacturing-route-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-6-manufacturing-route-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-6-manufacturing-route-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-6-manufacturing-route-18x10.webp 18w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-6-manufacturing-route-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-6-manufacturing-route.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\n<thead>\n<tr>\n<th style=\"border: 1px solid #d8dee4; padding: 10px; text-align: left;\">Surface situation<\/th>\n<th style=\"border: 1px solid #d8dee4; padding: 10px; text-align: left;\">Possible route<\/th>\n<th style=\"border: 1px solid #d8dee4; padding: 10px; text-align: left;\">Review before specifying<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #d8dee4; padding: 10px;\">General milled face<\/td>\n<td style=\"border: 1px solid #d8dee4; padding: 10px;\">Controlled finishing pass<\/td>\n<td style=\"border: 1px solid #d8dee4; padding: 10px;\">Cutter marks, stepover, flatness, and cosmetic expectation<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #d8dee4; padding: 10px;\">Turned sealing diameter<\/td>\n<td style=\"border: 1px solid #d8dee4; padding: 10px;\">Finish turning, grinding, or superfinishing<\/td>\n<td style=\"border: 1px solid #d8dee4; padding: 10px;\">Lead, lay, roundness, and seal design<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #d8dee4; padding: 10px;\">Bearing or sliding surface<\/td>\n<td style=\"border: 1px solid #d8dee4; padding: 10px;\">Grinding, honing, lapping, or defined machining texture<\/td>\n<td style=\"border: 1px solid #d8dee4; padding: 10px;\">Peak\/valley behavior, lubricant, hardness, and wear<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #d8dee4; padding: 10px;\">Cosmetic enclosure<\/td>\n<td style=\"border: 1px solid #d8dee4; padding: 10px;\">Machining plus blasting, brushing, polishing, or coating<\/td>\n<td style=\"border: 1px solid #d8dee4; padding: 10px;\">Visual sample, color, grain, masking, and handling damage<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Secondary finishing can change both texture and dimensions. Use the <a href=\"https:\/\/www.jccncmachining.com\/ar\/%d8%a7%d9%84%d9%82%d8%af%d8%b1%d8%a7%d8%aa\/%d9%84%d8%a7-%d8%aa%d8%b4%d9%88%d8%a8%d9%87%d8%a7-%d8%b4%d8%a7%d8%a6%d8%a8%d8%a9\/\">\u062e\u064a\u0627\u0631\u0627\u062a \u0627\u0644\u062a\u0634\u0637\u064a\u0628 \u0627\u0644\u0633\u0637\u062d\u064a<\/a> overview to identify routes, then state whether the symbol applies before or after the chosen finish.<\/p>\n<h2 style=\"font-size: 28px; line-height: 1.35; margin-top: 38px;\">A drawing audit for surface-texture callouts<\/h2>\n<p><img decoding=\"async\" width=\"1024\" height=\"576\" loading=\"lazy\" src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-7-drawing-audit-1024x576.webp\" alt=\"drawing-audit\" class=\"size-large wp-image-2595 aligncenter\" \/>\nBefore release, isolate every texture symbol and ask:\n\n\n<ol srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-7-drawing-audit-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-7-drawing-audit-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-7-drawing-audit-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-7-drawing-audit-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-7-drawing-audit-18x10.webp 18w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-7-drawing-audit-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-7-drawing-audit.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\n<li>What functional or visual failure does this requirement prevent?<\/li>\n<li>Is the controlled surface and its extent obvious?<\/li>\n<li>Does the symbol use the stated standard and edition coherently?<\/li>\n<li>Are parameter, limit, filter, lay, and manufacturing conditions sufficient?<\/li>\n<li>Can the required instrument reach the feature with a valid evaluation length?<\/li>\n<li>Does coating, heat treatment, polishing, or cleaning occur before final acceptance?<\/li>\n<li>Is a visual comparator or approved sample also needed?<\/li>\n<\/ol>\n<p>This audit often removes blanket roughness requirements from nonfunctional faces while strengthening the few surfaces that actually seal, slide, locate, or remain visible. That improves both manufacturability and inspection clarity.<\/p>\n<h2 style=\"font-size: 28px; line-height: 1.35; margin-top: 38px;\">ISO 21920 questions from CNC teams<\/h2>\n<p><img decoding=\"async\" width=\"1024\" height=\"576\" loading=\"lazy\" src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-8-surface-faq-1024x576.webp\" alt=\"surface-faq\" class=\"size-large wp-image-2596 aligncenter\" \/>\n<h3 style=\"font-size: 22px; line-height: 1.4;\" srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-8-surface-faq-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-8-surface-faq-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-8-surface-faq-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-8-surface-faq-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-8-surface-faq-18x10.webp 18w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-8-surface-faq-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/h2-8-surface-faq.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>Is ISO 1302 no longer usable?<\/h3>\n<p>Legacy drawings can remain contractually valid when they clearly state the edition and both parties understand the requirement. New or revised drawings should evaluate migration to ISO 21920 rather than silently mixing conventions.<\/p>\n<h3 style=\"font-size: 22px; line-height: 1.4;\">Does a lower Ra always mean a better surface?<\/h3>\n<p>No. It can add cost without improving function, and it does not fully describe lay, waviness, defects, or functional peak-and-valley behavior.<\/p>\n<h3 style=\"font-size: 22px; line-height: 1.4;\">Should roughness be measured before anodizing or plating?<\/h3>\n<p>The drawing or process specification should state the acceptance stage. A coating can alter the measured texture, fill valleys, reproduce substrate marks, or introduce its own variation.<\/p>\n<h3 style=\"font-size: 22px; line-height: 1.4;\">Can a visual sample replace a texture measurement?<\/h3>\n<p>It can support cosmetic acceptance, but it does not automatically replace a specified profile measurement. Use both when appearance and functional texture are separate requirements.<\/p>\n<p><strong>A good surface symbol lets three people reach one decision:<\/strong> the designer knows what function is protected, the machinist knows which process condition to create, and the inspector knows how to evaluate it. ISO 21920 is most valuable when it closes that loop.<\/p>\n<\/article>","protected":false},"excerpt":{"rendered":"<p>A surface-texture symbol is not shorthand for \u201cmake it smooth.\u201d It defines how a surface should be specified and evaluated: the parameter, limit, filter or nesting index, evaluation length, manufacturing requirement, and lay may all affect acceptance. ISO 21920-1:2021 now governs indication of profile surface texture in technical product documentation, so copying an old ISO [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2597,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2513","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.jccncmachining.com\/ar\/wp-json\/wp\/v2\/posts\/2513","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jccncmachining.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jccncmachining.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ar\/wp-json\/wp\/v2\/comments?post=2513"}],"version-history":[{"count":10,"href":"https:\/\/www.jccncmachining.com\/ar\/wp-json\/wp\/v2\/posts\/2513\/revisions"}],"predecessor-version":[{"id":2599,"href":"https:\/\/www.jccncmachining.com\/ar\/wp-json\/wp\/v2\/posts\/2513\/revisions\/2599"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ar\/wp-json\/wp\/v2\/media\/2597"}],"wp:attachment":[{"href":"https:\/\/www.jccncmachining.com\/ar\/wp-json\/wp\/v2\/media?parent=2513"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ar\/wp-json\/wp\/v2\/categories?post=2513"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ar\/wp-json\/wp\/v2\/tags?post=2513"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}