D\u00f6k\u00fcmc\u00fcl\u00fck s\u0131v\u0131 h\u00e2ldeki metal veya\u00a0ala\u015f\u0131mlar\u0131 \u00f6nceden haz\u0131rlanm\u0131\u015f bir kal\u0131ba bo\u015faltarak kat\u0131la\u015ft\u0131rma i\u015flemidir. \u0130lk olarak alt\u0131n ve bak\u0131r\u0131n ta\u015f\u00a0ve kil kal\u0131plara d\u00f6k\u00fcld\u00fc\u011f\u00fc tahmin edilmektedir. M.\u00d6. 4000 y\u0131llar\u0131nda balta ve ok ba\u015flar\u0131n\u0131n bir kal\u0131ba\u00a0bo\u015falt\u0131larak d\u00f6k\u00fcld\u00fc\u011f\u00fc san\u0131lmaktad\u0131r.<\/p>\n
\u0130lk ger\u00e7ek d\u00f6k\u00fcmh\u00e2ne \u00c7in\u2019de (M.\u00d6. 1766-1122) Shang Haned\u00e2n\u0131 zam\u00e2n\u0131nda kurulmu\u015ftur. O g\u00fcnden 19. asr\u0131n sonlar\u0131na kadar d\u00f6k\u00fcmc\u00fclerin s\u0131rlar\u0131, \u00e2ile\u00a0gruplar\u0131 veya te\u015fekk\u00fclleri i\u00e7inde gizli tutulmu\u015ftur. Kaz\u0131larda ele ge\u00e7en ilk heykeller alt\u0131n, g\u00fcm\u00fc\u015f, bak\u0131r\u00a0ve bronzdan d\u00f6k\u00fcm olarak yap\u0131lm\u0131\u015ft\u0131r. D\u00f6k\u00fcmc\u00fcl\u00fc\u011f\u00fcn yayg\u0131nla\u015fmas\u0131, \u00eem\u00e2l\u00e2t\u00e7\u0131lar aras\u0131nda\u00a0koordinasyon gerektirdi ve zamanla d\u00f6k\u00fcmc\u00fcl\u00fck bir end\u00fcstri h\u00e2line geldi. Bununla ber\u00e2ber g\u00fcn\u00fcm\u00fczde\u00a0\u00fcretilen metal malzemelerin b\u00fcy\u00fck bir k\u0131sm\u0131 madde (yo\u011furma) m\u00e2m\u00fcl\u00fc \u00e7ok az\u0131 da d\u00f6k\u00fcm olarak\u00a0kullan\u0131lmaktad\u0131r.<\/p>\n
Metal d\u00f6k\u00fcmc\u00fcl\u00fc\u011f\u00fc, pek\u00e7ok modern makina par\u00e7as\u0131 ve vanta elemanlar\u0131 i\u00e7in \u00e7ok \u00f6nemlidir. Mesel\u00e2 bir
\ntrakt\u00f6r\u00fcn a\u011f\u0131rl\u0131\u011f\u0131n\u0131n % 50\u2019den fazlas\u0131 d\u00f6k\u00fcmd\u00fcr. Otomobil motorunda ise bu % 90\u2019\u0131 a\u015far. T\u00fcrbin ve jet
\nmotoru perv\u00e2nesi y\u00fcksek hassasl\u0131k isteyen d\u00f6k\u00fcm par\u00e7alar\u0131d\u0131r. Son 20 y\u0131lda \u00fcretilen demir ve \u00e7eli\u011fin
\nortalama olarak onda biri d\u00f6k\u00fcm olarak kullan\u0131lm\u0131\u015ft\u0131r.<\/p>\n
B\u00fct\u00fcn metal d\u00f6k\u00fcmc\u00fcl\u00fc\u011f\u00fcn % 75\u2019i gri (Camel\u00a0Grafitli) d\u00f6kme demiri \u015feklindedir. Onu \u00e7elik, d\u00f6v\u00fclebilir demir, bak\u0131r ala\u015f\u0131mlar\u0131, Al, Zn ala\u015f\u0131mlar\u0131,\u00a0Mg-Ni esasl\u0131 ala\u015f\u0131mlar, Pb ve Ti d\u00f6k\u00fcm\u00fc t\u00e2kip eder. Eldeki t\u00e2rih\u00ee bilgilere g\u00f6re bak\u0131r ala\u015f\u0131mlar\u0131 en az\u00a06000 y\u0131ld\u0131r, gri demir 4000 y\u0131ld\u0131r d\u00f6k\u00fclmektedir. Al\u00fcminyum yakla\u015f\u0131k 1900, nikel esasl\u0131 ala\u015f\u0131mlar 1940\u00a0ve titan 1950 y\u0131l\u0131ndan beri d\u00f6k\u00fclmektedir.<\/p>\n","protected":false},"excerpt":{"rendered":"
D\u00f6k\u00fcmc\u00fcl\u00fck s\u0131v\u0131 h\u00e2ldeki metal veya\u00a0ala\u015f\u0131mlar\u0131 \u00f6nceden haz\u0131rlanm\u0131\u015f bir kal\u0131ba bo\u015faltarak kat\u0131la\u015ft\u0131rma i\u015flemidir. \u0130lk olarak alt\u0131n ve bak\u0131r\u0131n ta\u015f\u00a0ve kil kal\u0131plara d\u00f6k\u00fcld\u00fc\u011f\u00fc tahmin edilmektedir. M.\u00d6. 4000 y\u0131llar\u0131nda balta ve ok ba\u015flar\u0131n\u0131n…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[317],"tags":[2208,2207],"class_list":["post-2631","post","type-post","status-publish","format-standard","hentry","category-is-dunyasi","tag-dokum","tag-dokumculuk"],"_links":{"self":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/2631"}],"collection":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2631"}],"version-history":[{"count":3,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/2631\/revisions"}],"predecessor-version":[{"id":7271,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/2631\/revisions\/7271"}],"wp:attachment":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2631"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2631"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2631"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}