Browsing by Author "Altin, T."

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Determination of Optimum Machining Parameters in Machining Rene 41 Superalloy Depending on Cutting Speed
(EDP Sciences, 2025) Altin, A.; Altin, M.C.; Altin, H.; Altin, T.
Rene 41 superalloy developed to withstand severe mechanical stresses and high temperature operation, and are widely used in aircraft and space vehicles, especially nickel-based ones, due to their high corrosion resistance. In this study, three different cutting forces and surface roughness qualities were evaluated depending on the cutting speed in the machining of Rene 41 superalloy with three different ceramic tools KYON 4300, KSY25 and KSY30. In this work, The experimental results have revealed that the feed rate had a serious effect on the cutting forces, while the effect of turning speed and type of the cutting tool on the cutting forces are relatively small. On the other hand, the most important factor influencing the surface roughness was cutting speed followed by tool type and feed rate, respectively. The presented findings can help for understanding the machinability and surface characteristics of Rene’41 during high speed turning. In the experiments, it was observed that the cutting forces decreased as the cutting speed increased. © The Authors, published by EDP Sciences.
The Phenotypic and Genetic Parameters of Egg Yield and Some Egg Characteristics in Pekin Duck
(Scientific and Technical Research Council of Turkey, 1997) Karaca, O.; Altin, T.
This research was conducted to estimate the phenotypic and genetic parameters of egg production traits in Pekin duck. The age (year) of duck were used to adjust observed egg yield, egg weight, egg length, egg width and shape index. Genetic parameters based on half-sib and full-sib were generally medium-high. Mainly phenotypic correlation between traits were found to be highly significant (P<0.01 ).
The Uniformity of Kanakaş Lambs Wool in Terms of Length and Fineness
(Scientific and Technical Research Council of Turkey, 1996) Altin, T.; Okut, H.
This study was carried out to investigate the wool uniformity of Karakaş lambs in terms of fibre length and fineness. For this purpose, the coefficient of variation and several length and fineness classifications of fibers were considered. The average of coefficient of variation were 13.04% and 30.82% for length and fineness, respectively. The effect of farms, age of dam, body region, age (days) and yield of wool on the coefficient of variation of length were highly significant (p<0.01). whereas only the effect of fleece yield on the coefficient of variation of fineness was highly significant (p<0.01). In conclusion, it has been realized in this study that, uniformity and wool yield can be improved simultaneously.