{"id":136131,"date":"2025-07-18T11:23:53","date_gmt":"2025-07-18T03:23:53","guid":{"rendered":"https:\/\/www.alpapowder.com\/136131\/"},"modified":"2025-07-18T11:23:53","modified_gmt":"2025-07-18T03:23:53","slug":"metal-3d-baskili-parcalarin-kalitesi-toza-baglidir","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/tr\/136131\/","title":{"rendered":"Metal 3D bask\u0131l\u0131 par\u00e7alar\u0131n kalitesi toza ba\u011fl\u0131d\u0131r"},"content":{"rendered":"

\"\"<\/p>\n

Hammadde olarak metal tozunun kalitesi, nihai \u00fcr\u00fcn\u00fcn kalitesini b\u00fcy\u00fck \u00f6l\u00e7\u00fcde belirler. Genel olarak, tozun temizli\u011fi, morfolojisi ve par\u00e7ac\u0131k boyut da\u011f\u0131l\u0131m\u0131, par\u00e7alar\u0131n \u015fekillendirme performans\u0131n\u0131 k\u0131s\u0131tlayan temel fakt\u00f6rlerdir.<\/p>\n

Tozun morfolojisi, y\u0131\u011f\u0131n yo\u011funlu\u011funu ve ak\u0131\u015fkanl\u0131\u011f\u0131n\u0131 do\u011frudan etkiler ve bu da toz besleme ve yayma s\u00fcrecini ve par\u00e7alar\u0131n nihai performans\u0131n\u0131 etkiler. Toz yatak f\u00fczyon eklemeli imalat\u0131nda, toz yayma mekanizmas\u0131 toz par\u00e7ac\u0131klar\u0131n\u0131 \u015fekillendirme alan\u0131na e\u015fit \u015fekilde yayar ve iyi ak\u0131\u015fkanl\u0131k, d\u00fczg\u00fcn ve d\u00fcz bir toz yata\u011f\u0131 elde etmenin anahtar\u0131d\u0131r. K\u00fcresel ve k\u00fcresele yak\u0131n tozlar iyi ak\u0131\u015fkanl\u0131\u011fa, y\u00fcksek y\u0131\u011f\u0131n yo\u011funlu\u011funa, y\u00fcksek yo\u011funlu\u011fa ve homojen yap\u0131ya sahiptir ve toz yatak f\u00fczyon eklemeli imalat\u0131 i\u00e7in tercih edilen hammadde tozlar\u0131d\u0131r.<\/p>\n

Ancak, k\u00fcresel ve k\u00fcresele yak\u0131n tozlarda i\u00e7i bo\u015f toz ve uydu tozu mevcutsa, par\u00e7alar\u0131n nihai performans\u0131 d\u00fc\u015fecektir. 70 \u00b5m’den b\u00fcy\u00fck par\u00e7ac\u0131k boyutuna sahip tozlarda i\u00e7i bo\u015f toz oran\u0131 daha y\u00fcksektir ve bu durum, olu\u015fturulan par\u00e7alarda giderilmesi zor g\u00f6zenekler gibi kusurlara neden olur; uydu tozu, tozun ak\u0131\u015fkanl\u0131\u011f\u0131n\u0131 azalt\u0131r ve s\u00fcrekli toz katmanlar\u0131n\u0131n yay\u0131lmas\u0131 s\u0131ras\u0131nda tozun d\u00fczg\u00fcn bir \u015fekilde birikmesini engelleyerek par\u00e7a kusurlar\u0131na yol a\u00e7ar. Bu nedenle, toz yatak f\u00fczyon eklemeli imalat i\u00e7in metal tozlar\u0131, toz hammaddelerindeki i\u00e7i bo\u015f toz ve uydu tozu oran\u0131n\u0131 en aza indirmelidir.<\/p>\n

Toz par\u00e7ac\u0131k boyutu da\u011f\u0131l\u0131m\u0131, toz par\u00e7ac\u0131k sistemindeki farkl\u0131 par\u00e7ac\u0131k boyutlar\u0131na sahip par\u00e7ac\u0131klar\u0131n bile\u015fimini ve de\u011fi\u015fimlerini karakterize etmek i\u00e7in kullan\u0131l\u0131r ve toz par\u00e7ac\u0131klar\u0131n\u0131n \u00f6zelliklerini tan\u0131mlamak i\u00e7in kullan\u0131lan \u00f6nemli bir parametredir.<\/p>\n

Tozun par\u00e7ac\u0131k boyutu, toz yay\u0131lma kalitesini, \u015fekillendirme h\u0131z\u0131n\u0131, \u015fekillendirme do\u011frulu\u011funu ve eklemeli imalat s\u00fcrecinin organizasyonel tekd\u00fczeli\u011fini do\u011frudan etkiler. Farkl\u0131 prosesler i\u00e7in se\u00e7ilen toz par\u00e7ac\u0131k boyutu farkl\u0131d\u0131r. Genel olarak, lazer se\u00e7ici eritme teknolojisi (SLM) 15-45 \u00b5m par\u00e7ac\u0131k boyutuna sahip tozlar\u0131, elektron demeti se\u00e7ici eritme teknolojisi (SEBM) ise 45-106 \u00b5m par\u00e7ac\u0131k boyutuna sahip tozlar\u0131 se\u00e7er.<\/p>\n

Termodinamik ve kinetik a\u00e7\u0131s\u0131ndan bak\u0131ld\u0131\u011f\u0131nda, toz par\u00e7ac\u0131klar\u0131 ne kadar k\u00fc\u00e7\u00fckse, \u00f6zg\u00fcl y\u00fczey alanlar\u0131 o kadar b\u00fcy\u00fck ve sinterleme itici kuvveti o kadar b\u00fcy\u00fck olur; yani k\u00fc\u00e7\u00fck toz par\u00e7ac\u0131klar\u0131 par\u00e7a \u015fekillendirmeye elveri\u015flidir. Ancak, \u00e7ok ince par\u00e7ac\u0131kl\u0131 tozlar tozun ak\u0131\u015fkanl\u0131\u011f\u0131n\u0131n, yo\u011funlu\u011funun ve elektriksel iletkenli\u011finin azalmas\u0131na yol a\u00e7ar ve tozun \u015fekillendirilebilirli\u011fi bozulur ve bask\u0131 i\u015flemi s\u0131ras\u0131nda k\u00fcreselle\u015fme e\u011filimi ortaya \u00e7\u0131kar. \u00c7ok kaba toz par\u00e7ac\u0131k boyutu, tozun sinterleme aktivitesini, yay\u0131lma d\u00fczg\u00fcnl\u00fc\u011f\u00fcn\u00fc ve \u015fekillendirme do\u011frulu\u011funu azalt\u0131r.<\/p>\n

Bu nedenle, nihai par\u00e7alar\u0131n performans gereksinimlerine g\u00f6re, iri ve ince tozlar, tozlar\u0131n y\u0131\u011f\u0131n yo\u011funlu\u011funu ve ak\u0131\u015fkanl\u0131\u011f\u0131n\u0131 iyile\u015ftirmek i\u00e7in uygun \u015fekilde e\u015fle\u015ftirilir ve bu da toz yata\u011f\u0131 f\u00fczyon eklemeli imalat\u0131na elveri\u015flidir. Ara\u015ft\u0131rmac\u0131lar, lazer toz yata\u011f\u0131 f\u00fczyon eklemeli imalat s\u00fcrecinin genel par\u00e7ac\u0131k boyutu aral\u0131\u011f\u0131nda, daha geni\u015f bir par\u00e7ac\u0131k boyutu da\u011f\u0131l\u0131m\u0131n\u0131n kullan\u0131lmas\u0131n\u0131n, k\u00fc\u00e7\u00fck boyutlu par\u00e7ac\u0131klar\u0131n b\u00fcy\u00fck boyutlu par\u00e7ac\u0131klar aras\u0131ndaki bo\u015fluklara daha iyi dolmas\u0131n\u0131 sa\u011flayabilece\u011fine ve toz serme i\u015flemi s\u0131ras\u0131nda toz yata\u011f\u0131 yo\u011funlu\u011funu iyile\u015ftirebilece\u011fine inanmaktad\u0131r.<\/p>\n

Toz \u00f6zelliklerindeki de\u011fi\u015fikliklerin \u015fekillendirme kalitesi \u00fczerindeki etkisine ili\u015fkin mevcut ara\u015ft\u0131rma durumundan, toz boyutu, morfolojisi ve y\u00fczey durumundaki de\u011fi\u015fiklikler tozun yay\u0131lmas\u0131n\u0131 ve \u015fekillendirme kalitesini etkiler. \u015eekillendirme yo\u011funlu\u011fu a\u00e7\u0131s\u0131ndan, makul par\u00e7ac\u0131k boyutu da\u011f\u0131l\u0131m\u0131, daha y\u00fcksek k\u00fcresellik ve par\u00e7ac\u0131klar aras\u0131ndaki azalt\u0131lm\u0131\u015f kohezyon, tozun gev\u015fek yo\u011funlu\u011funu ve toz yay\u0131lma kalitesini iyile\u015ftirebilir, \u015fekillendirme numunesindeki g\u00f6zenek ve kayna\u015fmam\u0131\u015f kusur say\u0131s\u0131n\u0131 daha da azaltabilir ve \u015fekillendirme yo\u011funlu\u011funu iyile\u015ftirebilir.<\/p>\n","protected":false},"excerpt":{"rendered":"

Tozun morfolojisi do\u011frudan y\u0131\u011f\u0131n yo\u011funlu\u011funu ve ak\u0131\u015fkanl\u0131\u011f\u0131 etkiler, bu da toz besleme ve yayma i\u015flemini ve par\u00e7alar\u0131n nihai performans\u0131n\u0131 etkiler.<\/p>\n","protected":false},"author":7,"featured_media":136107,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[851],"tags":[],"class_list":["post-136131","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-endustri-haberleri-tr"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/posts\/136131","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/comments?post=136131"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/posts\/136131\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/media\/136107"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/media?parent=136131"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/categories?post=136131"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/tags?post=136131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}