{"id":10426,"date":"2026-08-24T10:15:05","date_gmt":"2026-08-24T02:15:05","guid":{"rendered":"https:\/\/am-material.com\/?p=10426"},"modified":"2026-07-22T10:32:14","modified_gmt":"2026-07-22T02:32:14","slug":"how-7075-aluminium-alloy-powder-performs-in-powder-bed-fusion-systems","status":"publish","type":"post","link":"https:\/\/am-material.com\/tr\/news\/how-7075-aluminium-alloy-powder-performs-in-powder-bed-fusion-systems\/","title":{"rendered":"7075 Al\u00fcminyum Ala\u015f\u0131m\u0131 Tozunun Toz Yatak F\u00fczyon Sistemlerinde G\u00f6sterdi\u011fi Performans"},"content":{"rendered":"

H\u0131zl\u0131 Cevap<\/h2>\n\n\n\n

7075 al\u00fcminyum ala\u015f\u0131ml\u0131 toz<\/strong> k\u00fcre \u015feklindeki bir Al-Zn-Mg-Cu hammadde (nominal 5,6% Zn, 2,5% Mg, 1,6% Cu, geri kalan\u0131 Al) olup, standart i\u015flenmi\u015f al\u00fcminyum ala\u015f\u0131mlar\u0131 aras\u0131nda en y\u00fcksek mukavemete sahip olan\u0131 toz yatak f\u00fczyonu, toz metalurjisi ve termal p\u00fcsk\u00fcrtme i\u015flemlerine kazand\u0131r\u0131r. LPBF'deki performans profili en iyi \u015fekilde \u201cy\u00fcksek getiri, y\u00fcksek disiplin\u201d olarak tan\u0131mlanabilir: uygun \u015fekilde i\u015flenmi\u015f ve T6 \u0131s\u0131l i\u015flemden ge\u00e7irilmi\u015f, bas\u0131lm\u0131\u015f 7075 par\u00e7alar, sadece 2,81 g\/cm\u00b3 yo\u011funlukta 500-570 MPa \u00e7ekme mukavemetine ula\u015f\u0131r; bu de\u011fer AlSi10Mg'nin yakla\u015f\u0131k iki kat\u0131d\u0131r; ancak ala\u015f\u0131m\u0131n geni\u015f donma aral\u0131\u011f\u0131 (477-635 \u00b0C) ve d\u00fc\u015f\u00fck silikon i\u00e7eri\u011fi, onu yayg\u0131n olarak bas\u0131labilen al\u00fcminyum ala\u015f\u0131mlar\u0131 aras\u0131nda \u00e7atlamaya en yatk\u0131n olan\u0131 haline getirir; bu nedenle ba\u015far\u0131l\u0131 bir \u00fcretim i\u00e7in 150-200 \u00b0C'lik bir bask\u0131 plakas\u0131 \u00f6n \u0131s\u0131tmas\u0131, \u00f6zenle geli\u015ftirilmi\u015f parametreler (tipik olarak 300-370 W, 800-1200 mm\/s, 30-40 mikronluk katmanlar) ve \u00e7o\u011fu durumda tane yap\u0131s\u0131n\u0131 inceltip s\u0131cak y\u0131rt\u0131lmay\u0131 \u00f6nleyen nanopar\u00e7ac\u0131k katk\u0131l\u0131 toz varyantlar\u0131 gerektirir. Toz spesifikasyonlar\u0131, D50 de\u011feri 35 mikrona yak\u0131n, 15-53 mikron PSD, 92%'nin \u00fczerinde k\u00fcresellik, a\u011f\u0131rl\u0131k\u00e7a 0,08 %'nin alt\u0131nda oksijen i\u00e7eri\u011fi ve her partide do\u011frulanm\u0131\u015f \u00e7inko-magnezyum kimyasal bile\u015fimi gerektirmelidir; zira her iki element de atomizasyon ve bask\u0131 s\u0131ras\u0131nda \u00f6ncelikli olarak buharla\u015f\u0131r. Al\u0131c\u0131lar, 7075'i ger\u00e7ekten 500+ MPa s\u0131n\u0131f\u0131 al\u00fcminyuma ihtiya\u00e7 duyan uygulamalar i\u00e7in birinci s\u0131n\u0131f bir yap\u0131sal malzeme olarak de\u011ferlendirmeli ve \u00fcretim hacimlerine karar vermeden \u00f6nce tedarik\u00e7inin \u00e7atlamaya yatk\u0131n al\u00fcminyum kalitelerindeki deneyimini do\u011frulamal\u0131d\u0131r.<\/p>\n\n\n\n

7075 Al\u00fcminyum Ala\u015f\u0131m Tozu Nedir ve Malzeme Avantajlar\u0131 Nelerdir?<\/h2>\n\n\n\n

7075 al\u00fcminyum ala\u015f\u0131ml\u0131 toz<\/strong> Havac\u0131l\u0131k ve uzay sekt\u00f6r\u00fcnde y\u00fcksek mukavemetli al\u00fcminyumu tan\u0131mlayan ala\u015f\u0131m\u0131n toz halidir. AA7075, EN AW-7075 ve AlZn5.5MgCu olarak standartla\u015ft\u0131r\u0131lm\u0131\u015f olan bu ala\u015f\u0131m, \u00e7inkonun ana ala\u015f\u0131m elementi oldu\u011fu 7xxx serisine aittir; magnezyum ve bak\u0131r ile desteklenerek, geleneksel al\u00fcminyum metalurjisinde mevcut en y\u00fcksek mukavemet seviyelerini sa\u011flayan \u00e7\u00f6kelme sertle\u015fmeli sistemi olu\u015fturur. T6 temperli d\u00f6vme haliyle, kanat kiri\u015flerinden g\u00f6vde \u00e7er\u00e7evelerine kadar, mukavemet-a\u011f\u0131rl\u0131k oran\u0131n\u0131n \u00e7eli\u011fe yakla\u015ft\u0131\u011f\u0131 ancak yo\u011funlu\u011funun \u00fc\u00e7te biri kadar oldu\u011fu her yerde, on y\u0131llard\u0131r u\u00e7ak yap\u0131lar\u0131nda kullan\u0131lmaktad\u0131r.<\/p>\n\n\n\n

\u015eu ailenin i\u00e7inde al\u00fcminyum ala\u015f\u0131ml\u0131 tozlar<\/a> Katmanl\u0131 imalat i\u00e7in sunulan 7075, performans a\u00e7\u0131s\u0131ndan en \u00fcst seviyede yer almaktad\u0131r. Katmanl\u0131 imalatta yayg\u0131n olarak kullan\u0131lan al\u00fcminyum ala\u015f\u0131mlar\u0131 olan AlSi10Mg ve AlSi7Mg, bas\u0131labilirlik amac\u0131yla se\u00e7ilmi\u015f d\u00f6k\u00fcm kaynakl\u0131 bile\u015fimlerdir; 7075 ise mukavemet nedeniyle tercih edilen d\u00f6vme kaynakl\u0131 bir bile\u015fimdir. Bu ge\u00e7mi\u015f, tarihsel olarak hem olumlu hem de olumsuz sonu\u00e7lar do\u011furmu\u015ftur: 7075 \u00fczerinde yap\u0131lan ilk LPBF denemeleri ciddi kat\u0131la\u015fma \u00e7atlaklar\u0131na yol a\u00e7m\u0131\u015f ve ala\u015f\u0131m, toz yatak f\u00fczyonunda \u201ckaynaklanamayan\u201d bir al\u00fcminyumun klasik \u00f6rne\u011fi haline gelmi\u015ftir. Son on y\u0131lda ger\u00e7ekle\u015ftirilen s\u00fcre\u00e7 geli\u015ftirmeleri, y\u00fcksek s\u0131cakl\u0131kta \u00f6n \u0131s\u0131tma, iyile\u015ftirilmi\u015f tarama stratejileri ve \u00f6zellikle toza nanopartik\u00fcl ekleme uygulamalar\u0131, 7075'i bas\u0131lamaz bir malzemeden \u00fcretime uygun bir malzemeye d\u00f6n\u00fc\u015ft\u00fcrm\u00fc\u015ft\u00fcr; bu malzeme art\u0131k, AlSi10Mg'nin 330 MPa'l\u0131k mukavemet s\u0131n\u0131r\u0131n\u0131n yetersiz kald\u0131\u011f\u0131 yap\u0131sal uygulamalarda kullan\u0131lmaktad\u0131r.<\/p>\n\n\n\n

7075 tozuna olan talebi art\u0131ran maddi avantajlar \u015funlard\u0131r:<\/p>\n\n\n\n