{"id":21507,"date":"2022-10-19T20:56:01","date_gmt":"2022-10-19T12:56:01","guid":{"rendered":"https:\/\/www.meetyoucarbide.com\/?p=21507"},"modified":"2022-10-19T20:58:55","modified_gmt":"2022-10-19T12:58:55","slug":"what-is-polycrystalline-diamond-pcd","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/tr\/what-is-polycrystalline-diamond-pcd\/","title":{"rendered":"Polikristal P\u0131rlanta (PCD) Nedir?"},"content":{"rendered":"
\n

Polikristalin Elmasa Giri\u015f<\/h2>\n

\u00c7ok kristalli elmas (PCD), elmas mikro tozunun metal ba\u011flay\u0131c\u0131lar (Co, Ni vb.) arac\u0131l\u0131\u011f\u0131yla polimerle\u015ftirilmesiyle yap\u0131lan \u00e7ok kristalli bir malzemedir. \u00c7ok kristalli elmas, \u00f6zel bir toz metalurjisi \u00fcr\u00fcn\u00fcd\u00fcr ve \u00fcretim y\u00f6nteminde geleneksel toz metalurjisinin baz\u0131 y\u00f6ntem ve ara\u00e7lar\u0131 \u00f6d\u00fcn\u00e7 al\u0131nm\u0131\u015ft\u0131r. Yapay monokristalin elmas, 1950'li y\u0131llardan sonra yava\u015f yava\u015f geli\u015ftirilerek, hammadde olarak grafite kataliz\u00f6r ilave edilerek, y\u00fcksek s\u0131cakl\u0131k ve ultra y\u00fcksek bas\u0131n\u00e7la sentezlendi.<\/p>\n

Sinterleme i\u015flemi s\u0131ras\u0131nda katk\u0131 maddelerinin eklenmesi nedeniyle ana bile\u015fenler Co, Mo, W, WC ve Ni olan PCD kristalleri aras\u0131nda bir ba\u011flanma k\u00f6pr\u00fcs\u00fc olu\u015fturulur ve elmas, ba\u011flanman\u0131n olu\u015fturdu\u011fu g\u00fc\u00e7l\u00fc iskelete s\u0131k\u0131 bir \u015fekilde g\u00f6m\u00fcl\u00fcr. k\u00f6pr\u00fc. Metal ba\u011flay\u0131c\u0131n\u0131n rol\u00fc, elmas\u0131 s\u0131k\u0131 bir \u015fekilde tutmak ve elmas\u0131n kesme verimlili\u011fini tam olarak artt\u0131rmakt\u0131r. Ayr\u0131ca taneler her y\u00f6ne serbest\u00e7e da\u011f\u0131ld\u0131\u011f\u0131 i\u00e7in \u00e7atlaklar\u0131n bir taneden di\u011ferine ge\u00e7mesi zordur, bu da PCD'nin mukavemetini ve toklu\u011funu b\u00fcy\u00fck \u00f6l\u00e7\u00fcde art\u0131r\u0131r.<\/p>\n

Polikristalin Elmas\u0131n \u00d6zellikleri<\/h2>\n

1, ultra-high hardness and wear resistance: nature’s incomparable material hardness of 10,000 HV, wear resistance is nearly 100 times that of carbide inserts.<\/p>\n

2, anizotropik monokristalin elmas kristal farkl\u0131 kristal y\u00fczeyi ve sertli\u011fin kristal y\u00f6n\u00fc, a\u015f\u0131nma direnci, mikroskobik mukavemet, i\u015f par\u00e7as\u0131 malzemesi aras\u0131ndaki zorluk derecesi ve s\u00fcrt\u00fcnme katsay\u0131s\u0131n\u0131n \u00f6\u011f\u00fct\u00fclmesi ve i\u015flenmesi, vb. b\u00fcy\u00fck \u00f6l\u00e7\u00fcde farkl\u0131l\u0131k g\u00f6sterir, bu nedenle monokristalin tasar\u0131m\u0131 ve \u00fcretimi Elmas aletler, kristal y\u00f6n\u00fcn\u00fc do\u011fru se\u00e7meli, elmas hammaddeleri kristal y\u00f6nelimli olmal\u0131d\u0131r. Elmas tak\u0131mlar\u0131n \u00f6n ve arka tak\u0131m y\u00fczlerinin se\u00e7imi, tek kristal elmas tak\u0131mlar\u0131n tasar\u0131m\u0131nda \u00f6nemli bir konudur.<\/p>\n

3, d\u00fc\u015f\u00fck s\u00fcrt\u00fcnme katsay\u0131s\u0131: Baz\u0131 demir d\u0131\u015f\u0131 malzemelerin i\u015flenmesinde PCD u\u00e7lar\u0131, di\u011fer u\u00e7lara g\u00f6re s\u00fcrt\u00fcnme katsay\u0131s\u0131 d\u00fc\u015f\u00fck oldu\u011funda, karb\u00fcr\u00fcn yakla\u015f\u0131k yar\u0131s\u0131 genellikle yakla\u015f\u0131k 0,2'dir.<\/p>\n

4, PCD kesme kenar\u0131 \u00e7ok keskin kesme kenar\u0131 k\u00fcnt daire yar\u0131\u00e7ap\u0131d\u0131r, genellikle 0.1-0.5um'a kadard\u0131r. ve do\u011fal tek kristal elmas aletler 0,002-0,005um aral\u0131\u011f\u0131nda olabilir. Bu nedenle do\u011fal elmas tak\u0131mlar ultra ince kesme ve ultra hassas i\u015fleme ger\u00e7ekle\u015ftirebilmektedir.<\/p>\n

5, d\u00fc\u015f\u00fck termal genle\u015fme katsay\u0131s\u0131: elmas\u0131n termal genle\u015fme katsay\u0131s\u0131 semente karb\u00fcr\u00fcnkinden daha k\u00fc\u00e7\u00fckt\u00fcr, yakla\u015f\u0131k 1\/10 y\u00fcksek h\u0131z \u00e7eli\u011fidir. bu nedenle elmas tak\u0131mlar \u00e7ok fazla termal deformasyon \u00fcretmez; yani, kesme \u0131s\u0131s\u0131n\u0131n neden oldu\u011fu tak\u0131m boyutunda de\u011fi\u015fiklik \u00e7ok k\u00fc\u00e7\u00fckt\u00fcr; bu, \u00f6zellikle y\u00fcksek boyutsal hassasiyet gereksinimleri olan hassas ve ultra hassas i\u015fleme i\u00e7in \u00f6nemlidir.<\/p>\n

PCD Elmas Ara\u00e7lar\u0131<\/h2>\n

Al\u00fcminyum i\u015f par\u00e7alar\u0131n\u0131n PCD elmas tak\u0131mlarla i\u015flenmesi, uzun tak\u0131m \u00f6mr\u00fc ve y\u00fcksek tala\u015f kald\u0131rma oran\u0131 gibi avantajlara sahiptir, ancak tak\u0131mlar\u0131n pahal\u0131 olmas\u0131 ve i\u015fleme maliyetinin y\u00fcksek olmas\u0131 dezavantaj\u0131d\u0131r. Bu nokta makine imalat sanayinde bir fikir birli\u011fi olu\u015fturdu. Ancak PCD ara\u00e7lar\u0131n\u0131n geli\u015ftirilmesi ve uygulanmas\u0131 son y\u0131llarda bir\u00e7ok de\u011fi\u015fikli\u011fe u\u011fram\u0131\u015ft\u0131r. PCD tak\u0131mlar\u0131ndaki di\u011fer bir de\u011fi\u015fiklik, pazardaki rekabet bask\u0131s\u0131 ve tak\u0131m \u00fcretim s\u00fcrecinin iyile\u015ftirilmesinde i\u015fleme maliyetlerinin s\u00fcrekli azalt\u0131lmas\u0131d\u0131r. Rekabet\u00e7i pazar bask\u0131s\u0131 ve tak\u0131m \u00fcretim s\u00fcreci iyile\u015ftirmesinin birle\u015fik etkisi alt\u0131nda, PCD tak\u0131mlar\u0131n\u0131n fiyat\u0131 y\u00fczde 50'den fazla \u00f6nemli \u00f6l\u00e7\u00fcde d\u00fc\u015ft\u00fc. . Bu e\u011filimler, al\u00fcminyum malzemelerin i\u015flenmesinde PCD tak\u0131mlar\u0131n\u0131n kullan\u0131m\u0131n\u0131n artmas\u0131na neden olurken, tak\u0131mlar\u0131n uygulanabilirli\u011fi i\u015flenen farkl\u0131 malzemelere g\u00f6re belirlenmektedir.<\/p>\n

\"PCD<\/p>\n

\u00c7ok kristalli elmas aletler nas\u0131l kullan\u0131l\u0131r?<\/h3>\n

Silikonsuz ve d\u00fc\u015f\u00fck silikonlu al\u00fcminyum ala\u015f\u0131ml\u0131 malzemeleri i\u015flemek i\u00e7in ince taneli (veya orta taneli) PCD kalitesinin kullan\u0131lmas\u0131n\u0131 \u00f6neririz. \u0130ri taneli PCD kalitesi, y\u00fcksek silikonlu al\u00fcminyum ala\u015f\u0131ml\u0131 malzemeyi i\u015flemek i\u00e7in kullan\u0131l\u0131r. Frezeleme ile i\u015flenen i\u015f par\u00e7as\u0131n\u0131n y\u00fczey kalitesi gereksinimleri kar\u015f\u0131lam\u0131yorsa, tatmin edici bir y\u00fczey kalitesi elde etmek i\u00e7in i\u015f par\u00e7as\u0131n\u0131n y\u00fczeyi daha k\u00fc\u00e7\u00fck tane boyutuna sahip bir kesici u\u00e7 kullan\u0131larak d\u00fczeltilebilir.<\/p>\n

The correct application of diamond inserts is a prerequisite to obtain satisfactory processing results. Although the specific causes of tool failure vary, they are usually due to incorrect use of the object or method of use. When ordering PCD inserts, the user should correctly grasp the tool’s range of adaptation. For example, when processing ferrous metal workpiece (such as stainless steel) with PCD inserts, as the diamond is very easy to chemical reaction with the carbon in the steel, will lead to rapid wear of PCD inserts, therefore, the correct choice for processing hardened steel should be PCBN inserts.<\/p>\n

Genel olarak konu\u015fursak, kesme kuvvetini azaltmak ve tala\u015f t\u00fcm\u00f6r\u00fc olu\u015fumunu \u00f6nlemek i\u00e7in PCD kesici u\u00e7lar\u0131n pozitif kesme a\u00e7\u0131s\u0131 kullanmas\u0131 gerekir. Ancak y\u00fcksek silikonlu al\u00fcminyum ala\u015f\u0131m\u0131n\u0131n i\u015flenmesinde (\u00f6zellikle i\u015fleme i\u00e7in karb\u00fcr tak\u0131mlar yerine elmas u\u00e7lar\u0131n kullan\u0131m\u0131nda), PCD kesici u\u00e7 arka a\u00e7\u0131s\u0131, kullan\u0131lan orijinal karb\u00fcr tak\u0131mlardan en iyisidir (250 gibi) arka a\u00e7\u0131, s\u0131rayla biraz azalt\u0131lm\u0131\u015ft\u0131r. Y\u00fcksek silikon al\u00fcminyum ala\u015f\u0131ml\u0131 kesme performans\u0131nda PCD kesici ucun kesici kenar\u0131n\u0131 geli\u015ftirmek i\u00e7in. PCD kesici ucun pozitif \u00f6n a\u00e7\u0131s\u0131 da \u00e7ok b\u00fcy\u00fck de\u011fildir, \u00e7\u00fcnk\u00fc tak\u0131m\u0131n \u00f6n a\u00e7\u0131s\u0131 ne kadar b\u00fcy\u00fck olursa kesme kenar\u0131 kuvveti de o kadar d\u00fc\u015f\u00fck olur; ba\u015fka bir deyi\u015fle PCD kesici ucun arka a\u00e7\u0131s\u0131 ne kadar k\u00fc\u00e7\u00fckse, kesme kenar\u0131n\u0131n kuvveti de o kadar y\u00fcksek olur. Tak\u0131m\u0131n pozitif kesme a\u00e7\u0131s\u0131n\u0131 garanti etme \u00f6nc\u00fcl\u00fc alt\u0131nda kesme kenar\u0131 mukavemetini m\u00fcmk\u00fcn oldu\u011fu kadar art\u0131rmak i\u00e7in, CNMX kesici ucunu negatif \u00f6n a\u00e7\u0131l\u0131 PCD tak\u0131m\u0131n\u0131n ucuna kaynaklad\u0131k ve pozitif bir kesme a\u00e7\u0131s\u0131 olu\u015fturduk, b\u00f6ylece kesici ucun negatif \u00f6n a\u00e7\u0131s\u0131, tak\u0131m\u0131n normal kesmesini etkilemeden y\u00fcksek kesme kenar\u0131 mukavemeti sa\u011flar. PCD kesici u\u00e7lar\u0131n kesici kenar\u0131n\u0131 haz\u0131rlarken elmas u\u00e7 i\u00e7in \u00e7ok fazla i\u015flem yap\u0131lmas\u0131na gerek yoktur. PCD frezeleme tak\u0131mlar\u0131 i\u00e7in kesici kenar hafif\u00e7e bilenebilir; ayr\u0131ca kesici kenar\u0131n belirli bir eksenel e\u011fim \u00fcretmesini sa\u011flamak da PCD tak\u0131mlar\u0131n\u0131n kesme performans\u0131n\u0131 art\u0131rmaya yard\u0131mc\u0131 olur.<\/p><\/div>\n

<\/p>","protected":false},"excerpt":{"rendered":"

Introduction to Polycrystalline Diamond Polycrystalline diamond (PCD) is a polycrystalline material made by polymerizing diamond micropowder through metal binders (such as Co, Ni, etc.). Polycrystalline diamond is a special kind of powder metallurgy product, and some methods and means of conventional powder metallurgy are borrowed in the manufacturing method. Artificial monocrystalline diamond is gradually developed…<\/p>","protected":false},"author":1,"featured_media":21508,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[92],"tags":[],"jetpack_featured_media_url":"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2022\/10\/PCD.webp","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/posts\/21507"}],"collection":[{"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/comments?post=21507"}],"version-history":[{"count":0,"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/posts\/21507\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/media\/21508"}],"wp:attachment":[{"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/media?parent=21507"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/categories?post=21507"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/tags?post=21507"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}