{"id":213739,"date":"2020-11-27T08:00:17","date_gmt":"2020-11-27T00:00:17","guid":{"rendered":"\/\/m.iemloyee.com\/?p=213739"},"modified":"2020-11-27T18:20:38","modified_gmt":"2020-11-27T10:20:38","slug":"%e6%b8%85%e5%8d%8e%e7%ad%89%e6%9c%80%e6%96%b0science%e9%87%91%e5%b1%9e3d%e6%89%93%e5%8d%b0%e6%8a%80%e6%9c%af%e5%8f%96%e5%be%97%e9%87%8d%e5%a4%a7%e7%a0%94%e7%a9%b6%e8%bf%9b%e5%b1%95","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=213739","title":{"rendered":"\u6e05\u534e\u7b49\u6700\u65b0Science:\u91d1\u5c5e3D\u6253\u5370\u6280\u672f\u53d6\u5f97\u91cd\u5927\u7814\u7a76\u8fdb\u5c55"},"content":{"rendered":"<p><strong>\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n<p>\u6fc0\u5149\u7c89\u672b\u5e8a\u7194\u878d\uff08Laser powder bed fusion\uff09\u80fd\u591f\u7cbe\u786e\u9ad8\u6548\u5730\u5236\u5907\u590d\u6742\u7ed3\u6784\uff0c\u662f\u4e00\u79cd\u91cd\u8981\u7684\u91d1\u5c5e3D\u6253\u5370\u6280\u672f\u3002\u7136\u800c\uff0c\u7531\u6b64\u4ea7\u751f\u7684\u5b54\u9699\u7f3a\u9677\u4e00\u76f4\u90fd\u963b\u788d\u7740\u8fd9\u9879\u6280\u672f\u5728\u75b2\u52b3\u654f\u611f\u578b\u5e94\u7528\u9886\u57df\u7684\u8fdb\u4e00\u6b65\u53d1\u5c55\u3002\u5176\u4e2d\uff0c\u5728\u9ad8\u529f\u7387\u3001\u4f4e\u626b\u63cf\u901f\u5ea6\u6fc0\u5149\u7194\u878d\u6761\u4ef6\u4e0b\u4ea7\u751f\u7684\u9501\u5b54\uff08keyhole, vapor depressions\uff09\u73b0\u8c61\u5c31\u4e0e\u5b54\u9699\u7684\u4ea7\u751f\u7d27\u5bc6\u76f8\u8fde\u3002<\/p>\n<p>\u3010<strong>\u6210\u679c\u7b80\u4ecb<\/strong>\u3011<\/p>\n<p>\u8fd1\u65e5<strong>\uff0c\u6e05\u534e\u5927\u5b66\u7684<\/strong><strong>\u8d75\u6ca7\u3001\u5361\u5185\u57fa\u6885\u9686\u5927\u5b66\u7684<\/strong><strong>Anthony D. Rollett<\/strong><strong>\u548c\u5f17\u5409\u5c3c\u4e9a\u5927\u5b66\u5927\u5b66\u7684<\/strong><strong>Tao Sun<\/strong>\uff08\u5171\u540c\u901a\u8baf\u4f5c\u8005\uff09\u7b49\u4eba\u5229\u7528\u544a\u8bc9X\u5c04\u7ebf\u6210\u50cf\u6280\u672f\u5bf9\u9501\u5b54\u5f62\u6210\u8fdb\u884c\u4e86\u7ec6\u81f4\u7684\u89c2\u6d4b\u3002\u7814\u7a76\u4ecb\u7ecd\uff0c\u9ad8\u901fX\u5c04\u7ebf\u80fd\u591f\u5728Ti-6Al-4V\u5408\u91d1\u4e2d\u5bf9\u7531\u9501\u5b54\u5c16\u7aef\u7684\u4e34\u754c\u5931\u7a33\u6240\u9020\u6210\u7684\u5b54\u7ed3\u6784\u8fdb\u884c\u539f\u4f4d\u89c2\u6d4b\u3002\u800c\u7ecf\u8fc7\u89c2\u6d4b\uff0c\u7814\u7a76\u53d1\u73b0\u5904\u4e8epower-velocity\u7a7a\u95f4\u7684\u9501\u5b54\u5b54\u9699\u5c55\u73b0\u51fa\u4e86\u5c16\u9510\u3001\u5e73\u6ed1\u7684\u8fb9\u754c\u5f62\u8c8c\u3002\u7814\u7a76\u8868\u793a\uff0c\u4e34\u754c\u9501\u5b54\u5931\u7a33\u73b0\u8c61\u80fd\u591f\u5728\u7194\u5316\u69fd\u4ea7\u751f\u58f0\u6ce2\uff0c\u4ece\u800c\u4e3a\u9501\u5b54\u9644\u8fd1\u7684\u5b54\u63d0\u4f9b\u989d\u5916\u4f46\u5173\u952e\u7684\u9a71\u52a8\u529b\uff0c\u4f7f\u5176\u8fd0\u52a8\u539f\u7406\u9501\u5b54\u5e76\u6700\u7ec8\u6210\u4e3a\u7f3a\u9677\u3002\u56e0\u6b64\uff0c\u7814\u7a76\u8ba4\u4e3a\u5bf9\u5b54\u9699\u7f3a\u9677\u5f62\u6210\u7684\u7406\u89e3\u4e3a\u907f\u514d\u5b54\u9699\u4ea7\u751f\u4ece\u800c\u6784\u5efa\u9ad8\u8d28\u91cf\u91d1\u5c5e\u90e8\u4ef6\u63d0\u4f9b\u4e86\u8def\u7ebf\u56fe\u30022020\u5e7411\u670827\u65e5\uff0c\u76f8\u5173\u6210\u679c\u4ee5\u9898\u4e3a\u201c<strong>Critical instability at moving keyhole tip generates porosity in laser melting<\/strong>\u201d\u7684\u6587\u7ae0\u5728\u7ebf\u53d1\u8868\u5728<strong>Science<\/strong>\u4e0a\u3002<\/p>\n<p>\u3010<strong>\u56fe\u6587\u5bfc\u8bfb<\/strong>\u3011<\/p>\n<p><strong>\u56fe1 <\/strong><strong>\u9501\u5b54\u5b54\u9699\u8fb9\u754c\u548c\u6fc0\u5149\u7194\u878d\u4e2d\u7684\u7c89\u672b\u4f5c\u7528<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-213742\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/11\/1-35.jpg\" alt=\"\" width=\"384\" height=\"496\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/11\/1-35.jpg 384w, \/\/m.iemloyee.com\/wp-content\/uploads\/2020\/11\/1-35-232x300.jpg 232w\" sizes=\"(max-width: 384px) 100vw, 384px\" \/><\/p>\n<p><strong>\u56fe<\/strong><strong>2<\/strong> <strong>\u5b54\u9699\u8fb9\u754c\u5904\u7684\u9501\u5b54\u7f29\u653e\u548c\u6ce2\u52a8<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-213741\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/11\/2-34.jpg\" alt=\"\" width=\"531\" height=\"514\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/11\/2-34.jpg 531w, \/\/m.iemloyee.com\/wp-content\/uploads\/2020\/11\/2-34-300x290.jpg 300w\" sizes=\"(max-width: 531px) 100vw, 531px\" \/><\/p>\n<p><strong>\u56fe<\/strong><strong>3 <\/strong><strong>\u58f0\u6ce2\u9a71\u52a8\u7684\u9501\u5b54\u5b54\u5f62\u6210\u548c\u8fd0\u52a8<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-213740\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/11\/3-36.jpg\" alt=\"\" width=\"529\" height=\"586\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/11\/3-36.jpg 529w, \/\/m.iemloyee.com\/wp-content\/uploads\/2020\/11\/3-36-271x300.jpg 271w\" sizes=\"(max-width: 529px) 100vw, 529px\" \/><\/p>\n<p>\u6587\u732e\u94fe\u63a5\uff1a<a href=\"https:\/\/science.sciencemag.org\/content\/370\/6520\/1080\" target=\"_blank\" rel=\"noopener\">Critical instability at moving keyhole tip generates porosity in laser melting<\/a>\uff08Science, 2020, DOI: 10.1126\/science.abd1587\uff09<\/p>\n<p>\u672c\u6587\u7531\u6750\u6599\u4eba\u5b66\u672f\u7ec4NanoCJ\u4f9b\u7a3f\u3002<\/p>\n<p>\u6750\u6599\u725b\u7f51\u4e13\u6ce8\u4e8e\u8ddf\u8e2a\u6750\u6599\u9886\u57df\u79d1\u6280\u53ca\u884c\u4e1a\u8fdb\u5c55\uff0c\u6b22\u8fce\u5927\u5bb6\u5230\u6750\u6599\u4eba\u5ba3\u4f20\u79d1\u6280\u6210\u679c\u5e76\u5bf9\u6587\u732e\u8fdb\u884c\u6df1\u5165\u89e3\u8bfb\uff0c\u6295\u7a3f\u90ae\u7bb1tougao@cailiaoren.com\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3010\u5f15\u8a00\u3011 \u6fc0\u5149\u7c89\u672b\u5e8a\u7194\u878d\uff08Laser powder bed fusion\uff09\u80fd\u591f\u7cbe\u786e\u9ad8\u6548\u5730\u5236\u5907\u590d\u6742\u7ed3\u6784\uff0c\u662f\u4e00\u79cd\u91cd\u8981\u7684\u91d1\u5c5e3D\u6253\u5370\u6280\u672f\u3002\u7136\u800c\uff0c\u7531\u6b64\u4ea7\u751f\u7684\u5b54\u9699\u7f3a\u9677\u4e00\u76f4&#8230;<\/p>\n","protected":false},"author":1076,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[215],"tags":[],"class_list":["post-213739","post","type-post","status-publish","format-standard","hentry","category-jiedu"],"_links":{"self":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/213739"}],"collection":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/users\/1076"}],"replies":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=213739"}],"version-history":[{"count":1,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/213739\/revisions"}],"predecessor-version":[{"id":213743,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/213739\/revisions\/213743"}],"wp:attachment":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=213739"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=213739"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=213739"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}