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TALASLI IMALAT SIRASINDA KESICI TAKIMDA MEYDANA GELEN HASAR MEKANIZMALARI VE TAKIM HASARINI AZALTMA YÖNTEMLERI

Journal Name:

  • Havacılık ve Uzay Teknolojileri Dergisi

Publication Year:

  • 2003

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
The main goal of this work is to study the influence of the tool failure mechanisms and on the tool life. Aiming to achieve this goal, several tool failure mechanisms are explained. Tool life is often the most important practical consideration in selecting cutting tools and cutting conditions. Tool wear and fracture rates directly influence tooling costs and part quality. For these reasons tool life is the most common criterion used to rate cutting tool performance and the machinability of materials. An understanding of tool life requires an understanding of the ways in which tools fail. Broadly, tool failure may result from wear, plastic deformation, or fracture. Cutting edges experience much higher normal and shear stresses than almost any other type of bearing surface and, at high cutting speeds, high temperature are also generated. The principle types of tool failure mechanisms,characteristics, countermeasures for common types of tool failure mechanisms and classified according to the regions of the tool they affect, are shown in Table 2. A primary goal of metal cutting research has been to develop methods of predicting tool life from a consideration of tool failure mechanisms. Unfortunately, accurately predicting tool life in any general sense is very difficult because tool failure mechanisms depend on several parameters. In this work, studying about online monitoring of tool condition methods are also explained.
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Abstract (Original Language): 
Bu çalismada takim ömrünü etkileyen takim hasar mekanizmalari incelenmistir. Takim ömrü, islenen parçanin kalitesini ve maliyetini direk olarak etkileyen bir faktördür. Takim ömrünü dogrulukla belirleyebilmek için, takim ömrünü olumsuz yönde etkileyen takim hasar mekanizmalarinin bilinmesine gerek vardir. Herhangi bir kesici takim asinma, plastik deformasyon veya kirilma yoluyla ömrünü tamamlar. Talas kaldirma sirasinda kesme kenarlarinda, normal çalisma durumuna göre oldukça yüksek kesme hizlarinda olusan yüksek sicaklikla birlikte oldukça yüksek normal ve kayma gerilmeleri meydana gelir. Kesme sartlarina bagli olarak kesme kenarlarinda meydana gelen hasar mekanizmalari, karekteristikleri, önleme yöntemleri ve Tablo 2’de verilmistir. Takim ömrü, diger bir ifadeyle takim hasar mekanizmalari pek çok faktöre bagli olarak degistiginden, kesme sartlarina bagli olarak takim ömrünü belirlemek oldukça zordur. Takim ömrünü belirlemek için basvurulan önemli bir teknik; talas kaldirma sirasinda es zamanli olarak takim kesme sartlarinin izlenmesidir. Bu amaçla yapilan arastirmalar, çalismanin sonunda özetlenmistir.
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  • Turkish

REFERENCES

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Talasli Imalat Sirasinda Kesici Takimda Meydana Gelen Hasar Mekanizmalari ve Takim Hasarini Azaltma
Yöntemleri
ÖZDEMIR, ERTEN
50
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