{"id":2204,"date":"2026-09-10T14:34:34","date_gmt":"2026-09-10T06:34:34","guid":{"rendered":"https:\/\/www.jccncmachining.com\/?p=2204"},"modified":"2026-09-09T16:38:30","modified_gmt":"2026-09-09T08:38:30","slug":"6061-vs-7075-vs-2024-cnc%e9%83%a8%e5%93%81","status":"publish","type":"post","link":"https:\/\/www.jccncmachining.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/6061-vs-7075-vs-2024-cnc%e9%83%a8%e5%93%81\/","title":{"rendered":"7075\u3078\u306e\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u306f\u4fa1\u5024\u304c\u3042\u308b\u304b\uff1f6061 vs 7075 vs 2024"},"content":{"rendered":"<p>\u52a0\u5de5\u3055\u308c\u305f\u30d6\u30e9\u30b1\u30c3\u30c8\u304c\u5927\u304d\u304f\u66f2\u304c\u308a\u3059\u304e\u308b\u5834\u5408\u30016061\u30927075\u306b\u7f6e\u304d\u63db\u3048\u3066\u3082\u305d\u306e\u305f\u308f\u307f\u306f\u307b\u3068\u3093\u3069\u5909\u308f\u3089\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30d6\u30e9\u30b1\u30c3\u30c8\u304c\u964d\u4f0f\u3059\u308b\u5834\u5408\u3001\u540c\u3058\u7f6e\u304d\u63db\u3048\u304c\u304b\u306a\u308a\u91cd\u8981\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002. <strong>\u9632\u6b62\u3059\u3079\u304d\u7834\u58ca\u30e2\u30fc\u30c9\u306b\u57fa\u3065\u3044\u30666061\u30017075\u30012024\u306e\u4e2d\u304b\u3089\u9078\u629e\u3057\u3001\u5408\u91d1\u756a\u53f7\u3060\u3051\u3067\u306a\u304f\u8abf\u8cea\u3068\u88fd\u54c1\u5f62\u614b\u3092\u6307\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/strong><\/p>\n<p>6061\u306f\u3001\u8010\u98df\u6027\u3001\u63a5\u5408\u6027\u3001\u304a\u3088\u3073\u4e00\u822c\u7684\u306a\u69cb\u9020\u6027\u80fd\u304c\u5171\u5b58\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u306e\u5b9f\u7528\u7684\u306a\u5019\u88dc\u3067\u3059\u30027075\u306f\u3001\u5236\u9650\u3055\u308c\u305f\u65ad\u9762\u306b\u9ad8\u3044\u964d\u4f0f\u5f37\u5ea6\u304c\u5fc5\u8981\u306a\u5834\u5408\u306b\u691c\u8a0e\u3059\u308b\u4fa1\u5024\u304c\u3042\u308a\u307e\u3059\u30022024\u306f\u75b2\u52b4\u611f\u53d7\u6027\u306e\u5019\u88dc\u30ea\u30b9\u30c8\u306b\u542b\u3081\u308b\u3079\u304d\u3067\u3059\u304c\u3001\u3059\u3079\u3066\u306e\u8377\u91cd\u6761\u4ef6\u4e0b\u3067\u81ea\u52d5\u7684\u306b\u75b2\u52b4\u306e\u52dd\u8005\u3068\u306a\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u306e\u6bd4\u8f03\u306f\u5f53\u793e\u306e\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u90e8\u9580\u3092\u5c55\u958b\u3059\u308b\u3082\u306e\u3067\u3042\u308a\u3001 <a href=\"https:\/\/www.jccncmachining.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/cnc%e5%8a%a0%e5%b7%a5%e6%9d%90%e6%96%99\/\">CNC\u52a0\u5de5\u6750\u6599\u30ac\u30a4\u30c9<\/a>; \u56f3\u9762\u56fa\u6709\u306e\u69cb\u9020\u691c\u8a3c\u306b\u4ee3\u308f\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n<nav aria-label=\"\u76ee\u6b21\"><strong>\u3053\u306e\u30da\u30fc\u30b8\u306e\u5185\u5bb9<\/strong><\/p>\n<ul>\n<li><a href=\"#failure-mode\">\u90e8\u54c1\u3092\u6545\u969c\u3055\u305b\u308b\u8981\u56e0\u306f\u4f55\u304b\uff1f<\/a><\/li>\n<li><a href=\"#temper-data\">\u6570\u5024\u3092\u6bd4\u8f03\u3059\u308b\u524d\u306b\u63a5\u5c3e\u8f9e\u3092\u8aad\u3080<\/a><\/li>\n<li><a href=\"#fatigue\">\u75b2\u52b4\u306b\u30e9\u30f3\u30ad\u30f3\u30b0\u4ee5\u4e0a\u306e\u3082\u306e\u304c\u5fc5\u8981\u306a\u7406\u7531<\/a><\/li>\n<li><a href=\"#stock-and-machining\">\u7d20\u6750\u304c\u52a0\u5de5\u6226\u7565\u306e\u4e00\u90e8\u306b\u306a\u308b<\/a><\/li>\n<li><a href=\"#finish-and-joining\">\u4fdd\u8b77\u3001\u5916\u89b3\u3001\u63a5\u5408\u304c\u30b0\u30ec\u30fc\u30c9\u3092\u5374\u4e0b\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b<\/a><\/li>\n<li><a href=\"#release-check\">\u56f3\u9762\u3092\u30ea\u30ea\u30fc\u30b9\u3059\u308b\u524d\u306b\u4ed5\u69d8\u3092\u78ba\u5b9a\u3059\u308b<\/a><\/li>\n<\/ul>\n<\/nav>\n<section id=\"failure-mode\">\n<h2>\u90e8\u54c1\u3092\u6545\u969c\u3055\u305b\u308b\u8981\u56e0\u306f\u4f55\u304b\uff1f<\/h2>\n<p><img src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-link-critical-features-1024x576.webp\" alt=\"\u30ea\u30f3\u30b1\u30fc\u30b8\u30a2\u30a4\u304a\u3088\u3073\u8377\u91cd\u3092\u53d7\u3051\u308b\u65ad\u9762\" class=\"size-large wp-image-2223 aligncenter\" width=\"1024\" height=\"576\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-link-critical-features-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-link-critical-features-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-link-critical-features-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-link-critical-features-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-link-critical-features-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-link-critical-features.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p>\u8868\u9762\u4e0a\u4f3c\u3066\u3044\u308b3\u3064\u306e\u90e8\u54c1\u304c\u7570\u306a\u308b\u5224\u65ad\u3092\u5fc5\u8981\u3068\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u4f4d\u7f6e\u6c7a\u3081\u30a2\u30fc\u30e0\u306f\u4f4d\u7f6e\u5408\u308f\u305b\u9650\u754c\u5185\u306b\u53ce\u307e\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30b3\u30f3\u30d1\u30af\u30c8\u306a\u30af\u30ec\u30d3\u30b9\u306f\u6c38\u4e45\u5909\u5f62\u306a\u3057\u306b\u30d4\u30fc\u30af\u8377\u91cd\u306b\u8010\u3048\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5f80\u5fa9\u30ea\u30f3\u30af\u6a5f\u69cb\u306f\u7e70\u308a\u8fd4\u3057\u8377\u91cd\u306b\u8010\u3048\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u30023\u3064\u3059\u3079\u3066\u3092\u300c\u9ad8\u5f37\u5ea6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u300d\u3068\u547c\u3076\u3053\u3068\u306f\u3001\u9078\u629e\u3092\u5c0e\u304f\u3079\u304d\u533a\u5225\u3092\u96a0\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002.<\/p>\n<div style=\"overflow-x: auto;\">\n<table>\n<caption>\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u5408\u91d1\u3092\u9078\u629e\u3059\u308b\u524d\u306b\u652f\u914d\u7684\u306a\u8981\u4ef6\u3092\u7279\u5b9a\u3059\u308b<\/caption>\n<thead>\n<tr>\n<th scope=\"col\">\u652f\u914d\u7684\u306a\u554f\u984c<\/th>\n<th scope=\"col\">\u6700\u521d\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u30c1\u30a7\u30c3\u30af<\/th>\n<th scope=\"col\">\u5408\u91d1\u9078\u629e\u3078\u306e\u5f71\u97ff<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th scope=\"row\">\u904e\u5927\u306a\u5f3e\u6027\u5909\u5f62<\/th>\n<td>\u65ad\u9762\u5f62\u72b6\u3001\u652f\u6301\u9593\u9694\u3001\u5f3e\u6027\u7387<\/td>\n<td>\u30ea\u30d6\u3084\u3088\u308a\u77ed\u3044\u30aa\u30fc\u30d0\u30fc\u30cf\u30f3\u30b0\u306e\u65b9\u304c\u3001\u9ad8\u5f37\u5ea6\u30b0\u30ec\u30fc\u30c9\u3088\u308a\u3082\u52b9\u679c\u7684\u306a\u5834\u5408\u304c\u3042\u308b\u3002.<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">\u30d4\u30fc\u30af\u8377\u91cd\u4e0b\u3067\u306e\u6c38\u4e45\u5909\u5f62<\/th>\n<td>\u6307\u5b9a\u6750\u6599\u72b6\u614b\u3092\u7528\u3044\u305f\u964d\u4f0f\u4f59\u88d5<\/td>\n<td>7075\u306f6061\u3067\u306f\u652f\u6301\u3067\u304d\u306a\u3044\u65ad\u9762\u3092\u8a31\u5bb9\u3067\u304d\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u304c\u3001\u4ed6\u306e\u7834\u58ca\u30e2\u30fc\u30c9\u306e\u5f71\u97ff\u3092\u53d7\u3051\u308b\u3002.<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">\u7e70\u308a\u8fd4\u3057\u30b5\u30a4\u30af\u30eb\u5f8c\u306e\u5272\u308c<\/th>\n<td>\u5fdc\u529b\u7bc4\u56f2\u3001\u5e73\u5747\u5fdc\u529b\u3001\u30ce\u30c3\u30c1\u3001\u8868\u9762\u72b6\u614b\u3001\u74b0\u5883<\/td>\n<td>2024\u30687075\u306b\u9069\u3057\u305f\u75b2\u52b4\u30c7\u30fc\u30bf\u3092\u6bd4\u8f03\u3059\u308b\u3053\u3068\u3002\u5f15\u5f35\u5f37\u5ea6\u3060\u3051\u3067\u5224\u65ad\u3057\u3066\u306f\u306a\u3089\u306a\u3044\u3002.<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">\u52a0\u5de5\u5f8c\u306e\u5d4c\u5408\u55aa\u5931<\/th>\n<td>\u7d20\u6750\u72b6\u614b\u3001\u6b8b\u7559\u5fdc\u529b\u3001\u52a0\u5de5\u9806\u5e8f\u3001\u6e2c\u5b9a\u8a2d\u5b9a<\/td>\n<td>\u3088\u308a\u5f37\u3044\u5408\u91d1\u3060\u3051\u3067\u306f\u5bf8\u6cd5\u5909\u5316\u3092\u89e3\u6c7a\u3067\u304d\u306a\u3044\u3002.<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">\u8150\u98df\u307e\u305f\u306f\u4fdd\u8b77\u8868\u9762\u306e\u640d\u50b7<\/th>\n<td>\u66b4\u9732\u3001\u63a5\u89e6\u306e\u8a73\u7d30\u3001\u65b0\u305f\u306b\u52a0\u5de5\u3057\u305f\u9762\u306e\u4fdd\u8b77<\/td>\n<td>\u52a0\u5de5\u53ef\u80fd\u306a\u4fdd\u8b77\u30b7\u30b9\u30c6\u30e0\u3092\u5099\u3048\u305f\u4f4e\u5f37\u5ea6\u5408\u91d1\u306e\u65b9\u304c\u597d\u307e\u3057\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u3053\u308c\u3089\u306f\u30b9\u30af\u30ea\u30fc\u30cb\u30f3\u30b0\u7528\u306e\u8cea\u554f\u3067\u3042\u308a\u3001\u8a2d\u8a08\u627f\u8a8d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u8377\u91cd\u652f\u6301\u90e8\u54c1\u306b\u3064\u3044\u3066\u306f\u3001\u8cac\u4efb\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u9069\u5207\u306a\u8a31\u5bb9\u7279\u6027\u3001\u8377\u91cd\u30b1\u30fc\u30b9\u3001\u30de\u30fc\u30b8\u30f3\u3092\u4f9d\u7136\u3068\u3057\u3066\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u6750\u6599\u6bd4\u8f03\u306f\u5019\u88dc\u3092\u7d5e\u308a\u8fbc\u3080\u3053\u3068\u306f\u3067\u304d\u307e\u3059\u304c\u3001\u69cb\u9020\u3092\u8a8d\u8a3c\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002.<\/p>\n<\/section>\n<section id=\"temper-data\">\n<h2>\u6570\u5024\u3092\u6bd4\u8f03\u3059\u308b\u524d\u306b\u63a5\u5c3e\u8f9e\u3092\u8aad\u3080<\/h2>\n<p><img src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-stock-temper-identification-1024x576.webp\" alt=\"\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u7d20\u6750\u306e\u30b5\u30f3\u30d7\u30eb\u3068\u8a18\u9332\" class=\"size-large wp-image-2225 aligncenter\" width=\"1024\" height=\"576\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-stock-temper-identification-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-stock-temper-identification-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-stock-temper-identification-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-stock-temper-identification-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-stock-temper-identification-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-stock-temper-identification.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p><strong>\u8abf\u8cea<\/strong> \u71b1\u51e6\u7406\u307e\u305f\u306f\u6a5f\u68b0\u7684\u51e6\u7406\u306b\u3088\u3063\u3066\u751f\u3058\u305f\u72b6\u614b\u3092\u8b58\u5225\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u5408\u91d1\u306b\u95a2\u9023\u3059\u308b\u6750\u6599\u7279\u6027\u3092\u5909\u5316\u3055\u305b\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u8cfc\u8cb7\u4ed5\u69d8\u306b\u306f\u5408\u91d1\u3001\u8abf\u8cea\u3001\u88fd\u54c1\u5f62\u614b\u306a\u3069\u306e\u7d44\u307f\u5408\u308f\u305b\u304c\u5fc5\u8981\u3067\u3059\u3002\u300c7075\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u300d\u3060\u3051\u3067\u306f\u3001\u8a2d\u8a08\u3067\u5229\u7528\u53ef\u80fd\u306a\u5f37\u5ea6\u3092\u5b9a\u7fa9\u3067\u304d\u307e\u305b\u3093\u3002.<\/p>\n<p>\u4ee5\u4e0b\u306e\u5024\u306fKaiser Aluminum\u304c\u516c\u958b\u3057\u3066\u3044\u308bSheet Coil &amp; Plate\u6280\u8853\u30c7\u30fc\u30bf\u306b\u57fa\u3065\u304f\u3082\u306e\u3067\u3059\u3002\u3053\u308c\u3089\u306f <strong>\u4ee3\u8868\u7684\u306a\u53c2\u8003\u5024\u3067\u3042\u308a\u3001\u4fdd\u8a3c\u3055\u308c\u305f\u8abf\u9054\u6700\u5c0f\u5024\u3084\u8a2d\u8a08\u8a31\u5bb9\u5024\u3067\u306f\u3042\u308a\u307e\u305b\u3093<\/strong>. \u8a08\u7b97\u306b\u5024\u3092\u7528\u3044\u308b\u524d\u306b\u3001\u5fc5\u8981\u306a\u677f\u539a\u3001\u65b9\u5411\u3001\u5728\u5eab\u5f62\u614b\u306b\u3064\u3044\u3066\u6700\u65b0\u306e\u4ed5\u69d8\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n<div style=\"overflow-x: auto;\">\n<table>\n<caption>\u3042\u308b\u30e1\u30fc\u30ab\u30fc\u306e\u53c2\u8003\u30c7\u30fc\u30bf\u304b\u3089\u306e\u8abf\u8cea\u5225\u306e\u4f8b<\/caption>\n<thead>\n<tr>\n<th scope=\"col\">\u5408\u91d1\u304a\u3088\u3073\u8a18\u8f09\u3055\u308c\u305f\u72b6\u614b<\/th>\n<th scope=\"col\">\u4ee3\u8868\u7684\u306a\u5f15\u5f35\u5f37\u3055<\/th>\n<th scope=\"col\">\u4ee3\u8868\u7684\u306a\u8010\u529b<\/th>\n<th scope=\"col\">\u5f3e\u6027\u4fc2\u6570<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th scope=\"row\">6061-T6 \/ T651<\/th>\n<td>310 MPa<\/td>\n<td>276 MPa<\/td>\n<td>68.3 GPa<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">7075-T651<\/th>\n<td>572 MPa<\/td>\n<td>503 MPa<\/td>\n<td>71.0 GPa<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">7075-T7351<\/th>\n<td>503 MPa<\/td>\n<td>434 MPa<\/td>\n<td>71.0 GPa<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">2024-T4 \/ T351<\/th>\n<td>469 MPa<\/td>\n<td>324 MPa<\/td>\n<td>73.1 GPa<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u525b\u6027\u306e\u5dee\u306f\u5f37\u5ea6\u306e\u5dee\u306b\u6bd4\u3079\u3066\u63a7\u3048\u3081\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u5408\u91d1\u3092\u5909\u66f4\u3059\u308b\u3068\u964d\u4f0f\u306b\u5bfe\u3059\u308b\u8010\u6027\u306f\u5411\u4e0a\u3057\u3066\u3082\u3001\u4f7f\u7528\u8377\u91cd\u4e0b\u3067\u306e\u4f4d\u7f6e\u5408\u308f\u305b\u306b\u3064\u3044\u3066\u540c\u69d8\u306e\u6539\u5584\u306f\u5f97\u3089\u308c\u307e\u305b\u3093\u3002.<\/p>\n<p>7075\u306e2\u3064\u306e\u884c\u306f\u5b9f\u969b\u306e\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5\u3082\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u72b6\u614b\u3092\u5909\u3048\u308b\u3053\u3068\u3067\u3001\u8010\u5fdc\u529b\u8150\u98df\u6027\u306e\u5411\u4e0a\u3068\u5f15\u304d\u63db\u3048\u306b\u5f37\u5ea6\u3092\u72a0\u7272\u306b\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002T651\u3068T7351\u306f\u4e92\u63db\u6027\u306e\u3042\u308b\u63a5\u5c3e\u8f9e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3059\u3067\u306b\u8a31\u5bb9\u5fdc\u529b\u306b\u8fd1\u3044\u90e8\u54c1\u306e\u5834\u5408\u3001\u5225\u306e\u8abf\u8cea\u3092\u627f\u8a8d\u3059\u308b\u306b\u306f\u3001\u5408\u91d1\u756a\u53f7\u304c\u4e00\u81f4\u3059\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3060\u3051\u3067\u306f\u4e0d\u5341\u5206\u3067\u3059\u3002.<\/p>\n<p>\u5f53\u793e\u306e <a href=\"https:\/\/www.jccncmachining.com\/ja\/%e8%a1%a8%e7%a4%ba\/7075%e3%82%a2%e3%83%ab%e3%83%9f%e3%83%8b%e3%82%a6%e3%83%a0%e5%8a%a0%e5%b7%a5\/\">7075\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u306e\u52a0\u5de5\u30da\u30fc\u30b8<\/a> \u3067\u306f\u3001\u305d\u306e\u6750\u6599\u3092\u88fd\u9020\u30aa\u30d7\u30b7\u30e7\u30f3\u3068\u3057\u3066\u6271\u3063\u3066\u3044\u307e\u3059\u3002\u6b63\u78ba\u306a\u72b6\u614b\u3068\u5728\u5eab\u306e\u6709\u7121\u306f\u3001\u7279\u5b9a\u306e\u56f3\u9762\u306b\u3064\u3044\u3066\u5f15\u304d\u7d9a\u304d\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<\/section>\n<section id=\"fatigue\">\n<h2>\u75b2\u52b4\u306b\u30e9\u30f3\u30ad\u30f3\u30b0\u4ee5\u4e0a\u306e\u3082\u306e\u304c\u5fc5\u8981\u306a\u7406\u7531<\/h2>\n<p><img src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-fatigue-detail-review-1024x576.webp\" alt=\"\u6a5f\u68b0\u52a0\u5de5\u3055\u308c\u305f\u30ea\u30f3\u30af\u6a5f\u69cb\u30dc\u30a2\u306e\u30c8\u30e9\u30f3\u30b8\u30b7\u30e7\u30f3\" class=\"size-large wp-image-2227 aligncenter\" width=\"1024\" height=\"576\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-fatigue-detail-review-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-fatigue-detail-review-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-fatigue-detail-review-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-fatigue-detail-review-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-fatigue-detail-review-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-fatigue-detail-review.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p>A statement such as \u201c2024 is best for fatigue\u201d leaves out the test. Fatigue is damage caused by repeated loading; its development depends on load history and local conditions, not simply the material&#8217;s tensile strength.<\/p>\n<p>Before comparing fatigue values, ask whether the data use the same stress ratio, number of cycles, specimen geometry, surface condition and environment. A polished, unnotched rotating specimen does not represent a machined lug with a hole, a sharp transition and intermittent wet exposure.<\/p>\n<h3>\u30ea\u30f3\u30b1\u30fc\u30b8\u306f\u8a66\u9a13\u7247\u3067\u306f\u306a\u3044<\/h3>\n<p>\u30dc\u30a2\u4ed8\u304d\u30a2\u30a4\u3092\u6301\u3064\u4eee\u60f3\u7684\u306a\u30ea\u30f3\u30b1\u30fc\u30b8\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u307e\u305a\u5909\u52d5\u8377\u91cd\u3068\u5e73\u5747\u8377\u91cd\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002\u6b21\u306b\u3001\u30dc\u30a2\u30a8\u30c3\u30b8\u3001\u9077\u79fb\u534a\u5f84\u3001\u8868\u9762\u640d\u50b7\u3001\u304a\u3088\u3073\u7d20\u6750\u306b\u5bfe\u3059\u308b\u8377\u91cd\u65b9\u5411\u3092\u8abf\u3079\u307e\u3059\u3002\u6709\u5229\u306a\u6750\u6599\u30c7\u30fc\u30bf\u70b9\u306f\u3001\u307e\u3055\u306b\u4e80\u88c2\u304c\u767a\u751f\u3057\u5f97\u308b\u90e8\u4f4d\u306b\u304a\u3051\u308b\u672a\u691c\u8a0e\u306e\u5fdc\u529b\u96c6\u4e2d\u3092\u88dc\u3046\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002.<\/p>\n<p>\u75b2\u52b4\u306b\u654f\u611f\u306a\u90e8\u54c1\u3067\u306f\u3001\u305d\u306e\u30ec\u30d3\u30e5\u30fc\u5f8c\u30822024\u304c\u6709\u529b\u5019\u88dc\u3068\u3057\u3066\u6b8b\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u6709\u7528\u306a\u6bd4\u8f03\u306f\u3001\u6750\u6599\u3001\u5f62\u72b6\u3001\u8868\u9762\u3001\u8377\u91cd\u306e\u9069\u683c\u306a\u7d44\u307f\u5408\u308f\u305b\u3067\u3042\u308a\u3001\u4e07\u80fd\u306a\u5408\u91d1\u30e9\u30f3\u30ad\u30f3\u30b0\u8868\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u9078\u5b9a\u3057\u305f\u30b0\u30ec\u30fc\u30c9\u306b\u95a2\u3059\u308b\u8a73\u7d30\u306a\u4f5c\u696d\u306f\u3001\u5f53\u793e\u306e <a href=\"https:\/\/www.jccncmachining.com\/ja\/%e8%a1%a8%e7%a4%ba\/2024%e3%82%a2%e3%83%ab%e3%83%9f%e3%83%8b%e3%82%a6%e3%83%a0%e5%8a%a0%e5%b7%a5\/\">2024\u306e\u52a0\u5de5\u60c5\u5831<\/a>, \u3067\u7d99\u7d9a\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u3053\u306e\u9078\u5b9a\u8a18\u4e8b\u3092\u5207\u524a\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u30de\u30cb\u30e5\u30a2\u30eb\u306b\u62e1\u5f35\u3059\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n<\/section>\n<section id=\"stock-and-machining\">\n<h2>\u7d20\u6750\u304c\u52a0\u5de5\u6226\u7565\u306e\u4e00\u90e8\u306b\u306a\u308b<\/h2>\n<p><img src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-roughing-stock-sequence-1024x576.webp\" alt=\"\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u30d6\u30e9\u30f3\u30af\u306e\u7c97\u52a0\u5de5\u6bb5\u968e\" class=\"size-large wp-image-2224 aligncenter\" width=\"1024\" height=\"576\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-roughing-stock-sequence-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-roughing-stock-sequence-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-roughing-stock-sequence-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-roughing-stock-sequence-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-roughing-stock-sequence-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-roughing-stock-sequence.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p>Bar, rolled plate and extrusion are not merely different package shapes. Product form affects available dimensions, grain orientation, material specifications and the distribution of residual stress. Removing a deep pocket from one side can release stress unevenly; the final part may move when unclamped even if the machine followed the toolpath correctly.<\/p>\n<p>Stress-relieved stock is worth evaluating where substantial material removal or tight free-state geometry makes movement costly. It is not a guarantee of zero distortion. The manufacturing plan should still address support, the order of roughing and finishing, remaining stock and when dimensions are checked.<\/p>\n<h3>\u5404\u30c1\u30a7\u30c3\u30af\u30dd\u30a4\u30f3\u30c8\u3067\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3059\u308b<\/h3>\n<ul>\n<li><strong>\u5165\u8377\u7d20\u6750\uff1a<\/strong> \u5408\u91d1\u3001\u8abf\u8cea\u3001\u5f62\u614b\u3001\u304a\u3088\u3073\u5fc5\u8981\u306a\u30ed\u30c3\u30c8\u6587\u66f8\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002.<\/li>\n<li><strong>\u7c97\u52a0\u5de5\u5f8c\uff1a<\/strong> \u89e3\u653e\u3055\u308c\u305f\u52d5\u304d\u304c\u3042\u3063\u3066\u3082\u4ed5\u4e0a\u3052\u306b\u5341\u5206\u306a\u6750\u6599\u304c\u6b8b\u3063\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002.<\/li>\n<li><strong>\u30af\u30e9\u30f3\u30d7\u89e3\u9664\u5f8c\uff1a<\/strong> \u81ea\u7531\u72b6\u614b\u306e\u5f62\u72b6\u3068\u3001\u6cbb\u5177\u3067\u5e73\u5766\u306b\u4fdd\u6301\u3055\u308c\u3066\u3044\u305f\u5f62\u72b6\u3092\u533a\u5225\u3057\u307e\u3059\u3002.<\/li>\n<li><strong>\u4ed5\u4e0a\u3052\u51e6\u7406\u5f8c\uff1a<\/strong> \u7d0d\u54c1\u72b6\u614b\u3067\u6a5f\u80fd\u5bf8\u6cd5\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002.<\/li>\n<\/ul>\n<p>6061\u30017075\u30012024\u306f\u3044\u305a\u308c\u3082\u78ba\u7acb\u3055\u308c\u305f\u52a0\u5de5\u7528\u9014\u304c\u3042\u308a\u307e\u3059\u3002\u5358\u4e00\u306e\u300c\u88ab\u524a\u6027\u30d1\u30fc\u30bb\u30f3\u30c8\u300d\u3067\u306f\u3001\u6df1\u7a74\u3001\u65ad\u7d9a\u5207\u524a\u3001\u8584\u3044\u5e95\u9762\u304c\u3069\u306e\u3088\u3046\u306b\u6319\u52d5\u3059\u308b\u304b\u3092\u8cfc\u5165\u8005\u306b\u4f1d\u3048\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u5207\u308a\u304f\u305a\u5236\u5fa1\u3001\u5203\u5148\u3078\u306e\u4ed8\u7740\u3001\u525b\u6027\u3001\u5de5\u5177\u72b6\u614b\u306f\u52a0\u5de5\u64cd\u4f5c\u306b\u4f9d\u5b58\u3057\u307e\u3059\u30026061\u304c\u5019\u88dc\u306b\u6319\u304c\u308b\u5834\u5408\u3001\u5f53\u793e\u306e <a href=\"https:\/\/www.jccncmachining.com\/ja\/%e8%a1%a8%e7%a4%ba\/6061%e3%82%a2%e3%83%ab%e3%83%9f%e3%83%8b%e3%82%a6%e3%83%a0%e6%a9%9f%e6%a2%b0%e5%8a%a0%e5%b7%a5\/\">6061\u306e\u52a0\u5de5\u8a73\u7d30<\/a> provide a grade-specific starting point.<\/p>\n<p>A quote for a thick plate with extensive removal should identify the intended stock route. If the alternative offer uses a different form or temper, compare the resulting process and acceptance plan before calling it equivalent.<\/p>\n<\/section>\n<section id=\"finish-and-joining\">\n<h2>\u4fdd\u8b77\u3001\u5916\u89b3\u3001\u63a5\u5408\u304c\u30b0\u30ec\u30fc\u30c9\u3092\u5374\u4e0b\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b<\/h2>\n<p><img src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-finish-and-joint-review-1024x576.webp\" alt=\"\u967d\u6975\u9178\u5316\u51e6\u7406\u3055\u308c\u305f\u30cf\u30a6\u30b8\u30f3\u30b0\u3068\u63a5\u5408\u306e\u8a73\u7d30\" class=\"size-large wp-image-2222 aligncenter\" width=\"1024\" height=\"576\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-finish-and-joint-review-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-finish-and-joint-review-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-finish-and-joint-review-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-finish-and-joint-review-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-finish-and-joint-review-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/aluminum-finish-and-joint-review.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p>6061 is often attractive when the part needs both machining and conventional welding. However, weldability does not mean the heat-affected region retains the original heat-treated strength. If the assembly is welded, evaluate the welded condition rather than using parent-stock properties throughout the joint.<\/p>\n<p>Do not assume a conventional fusion-welding route is suitable for 7075 or 2024 without a qualified process. A material selected for high parent-metal strength can become the wrong choice once the joining method is considered.<\/p>\n<p>Surface protection deserves similar attention. Machining a component from clad stock can remove the protective surface at faces, holes and edges. The fact that the original product was clad does not establish corrosion protection for the finished geometry.<\/p>\n<p>For visible anodized assemblies, request an agreed appearance standard for the actual alloy and process. Matching a color name is not sufficient when adjacent components have different alloy chemistry, surface preparation or treatment history. Review compatible <a href=\"https:\/\/www.jccncmachining.com\/ja\/%e6%a9%9f%e8%83%bd\/%e8%a1%a8%e9%9d%a2%e4%bb%95%e4%b8%8a%e3%81%92\/\">finishing options for machined aluminum<\/a> before finalizing fits, masking and cosmetic zones.<\/p>\n<\/section>\n<section id=\"release-check\">\n<h2>\u56f3\u9762\u3092\u30ea\u30ea\u30fc\u30b9\u3059\u308b\u524d\u306b\u4ed5\u69d8\u3092\u78ba\u5b9a\u3059\u308b<\/h2>\n<p>The material callout should leave no uncertainty about what the supplier may substitute. Record the alloy and temper, governing product specification where required, stock form or orientation constraints, surface treatment, critical dimensions after treatment and the evidence needed at delivery.<\/p>\n<p>A useful comparison of quotations separates raw stock, machining, protective treatment and inspection. Avoid applying a fixed 7075 price premium to every part. A stock availability problem, a second machining stage or demanding cosmetic acceptance can change the relative cost more than the alloy label suggests.<\/p>\n<h3>Can 7075 make an unchanged 6061 part lighter?<\/h3>\n<p>\u5358\u306a\u308b\u6750\u6599\u7f6e\u63db\u3060\u3051\u3067\u306f\u5b9f\u73fe\u3067\u304d\u307e\u305b\u3093\u3002\u5f62\u72b6\u3092\u5909\u3048\u306a\u3051\u308c\u3070\u4f53\u7a4d\u306f\u307b\u307c\u540c\u3058\u3067\u3042\u308a\u30017075\u306f6061\u3088\u308a\u308f\u305a\u304b\u306b\u9ad8\u5bc6\u5ea6\u3067\u3059\u3002\u8efd\u91cf\u5316\u306b\u306f\u59a5\u5f53\u6027\u306e\u3042\u308b\u5f62\u72b6\u5909\u66f4\u304c\u5fc5\u8981\u3067\u3042\u308a\u3001\u525b\u6027\u3001\u5b89\u5b9a\u6027\u3001\u75b2\u52b4\u3001\u63a5\u7d9a\u90e8\u3092\u518d\u691c\u8a3c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<h3>T651\u306e\u6307\u793a\u306f\u3001\u90e8\u54c1\u304c\u5e73\u5766\u306a\u307e\u307e\u3067\u3042\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b\u3082\u306e\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u3044\u3044\u3048\u3002\u5fdc\u529b\u9664\u53bb\u72b6\u614b\u306f\u52a9\u3051\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u6700\u7d42\u7684\u306a\u5909\u5f62\u306f\u7d20\u6750\u306e\u5c65\u6b74\u3001\u5f62\u72b6\u3001\u9664\u53bb\u9806\u5e8f\u3001\u6cbb\u5177\u3001\u691c\u67fb\u6761\u4ef6\u306b\u3082\u4f9d\u5b58\u3057\u307e\u3059\u3002\u5fc5\u8981\u306a\u6700\u7d42\u5e73\u5766\u5ea6\u3068\u305d\u306e\u6e2c\u5b9a\u6761\u4ef6\u3092\u5225\u9014\u6307\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n<h3>\u5f37\u5ea6\u304c\u9ad8\u3044\u3068\u3044\u3046\u7406\u7531\u3067\u3001\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u304c2024\u30927075\u306b\u7f6e\u304d\u63db\u3048\u3066\u3082\u3088\u3044\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u627f\u8a8d\u3055\u308c\u305f\u4ee3\u66ff\u30d7\u30ed\u30bb\u30b9\u3092\u901a\u3057\u305f\u5834\u5408\u306b\u9650\u308a\u307e\u3059\u3002\u964d\u4f0f\u5f37\u5ea6\u304c\u9ad8\u3044\u3053\u3068\u306f\u3001\u540c\u7b49\u306e\u75b2\u52b4\u7279\u6027\u3001\u8010\u98df\u6027\u3001\u63a5\u5408\u4e92\u63db\u6027\u3001\u307e\u305f\u306f\u65e2\u5b58\u306e\u88fd\u54c1\u4ed5\u69d8\u3078\u306e\u9069\u5408\u6027\u3092\u793a\u3059\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n<p>\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u306f\u3001\u5b9a\u7fa9\u3055\u308c\u305f\u5236\u9650\u3092\u89e3\u6c7a\u3059\u308b\u5834\u5408\u306b\u306e\u307f\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u30026061\u3092\u7dad\u6301\u3059\u308b\u6587\u66f8\u5316\u3055\u308c\u305f\u7406\u7531\u306f\u30017075\u30842024\u3078\u79fb\u884c\u3059\u308b\u6587\u66f8\u5316\u3055\u308c\u305f\u7406\u7531\u3068\u540c\u69d8\u306b\u4fa1\u5024\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>If a machined bracket bends too far, replacing 6061 with 7075 may barely change its deflection. If the bracket yields, that same substitution could matter considerably. Choose among 6061, 7075 and 2024 by the failure mode you must prevent, then specify the temper and product form\u2014not just the alloy number. 6061 is a practical candidate when corrosion resistance, joining and general structural performance must coexist. 7075 deserves consideration when a restricted section needs higher yield strength. 2024 belongs on a fatigue-sensitive shortlist, but it is not automatically the fatigue winner under every loading condition. This comparison develops the aluminum branch of our CNC machining materials guide; it does not replace [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2226,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2204","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/posts\/2204","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/comments?post=2204"}],"version-history":[{"count":8,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/posts\/2204\/revisions"}],"predecessor-version":[{"id":2228,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/posts\/2204\/revisions\/2228"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/media\/2226"}],"wp:attachment":[{"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/media?parent=2204"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/categories?post=2204"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/tags?post=2204"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}