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1 – 2 of 2Mehmet Kivanc Turan, Muhammet Üsame Sabirli, Altug Bakirci, Emirhan Kartal and Fatih Karpat
This study aims to investigate the effects of five different printing parameters, namely, printing speed (PS), printing temperature/nozzle temperature/extrusion temperature…
Abstract
Purpose
This study aims to investigate the effects of five different printing parameters, namely, printing speed (PS), printing temperature/nozzle temperature/extrusion temperature, heated-bed temperature, raster angle (RA) and layer height (LT), on mechanical properties.
Design/methodology/approach
American Society for Testing and Materials (ASTM) standards were used for the specimen design. Then, the Taguchi method was used for the design of the experiment and an L16 orthogonal array was preferred. Tensile, Shore D and surface roughness tests were conducted on polylactic acid test specimens. The test results were analyzed using the signal-to-noise ratio and analysis of variance (ANOVA).
Findings
As a result of the study, it was seen that RA is the most important parameter for the tensile strength, PS is for the hardness and LT is for the surface roughness. According to the ANOVA results, the effects of the RA, PS and LT on the maximum tensile strength, hardness and surface roughness were 41.59%, 69.51% and 44.6%, respectively.
Originality/value
To the best of the authors’ knowledge, this study is one of the most comprehensive parameter optimization studies for additive manufacturing in the literature because it includes five different printing parameters and three mechanical test procedures.
Details
Keywords
Contextualizing its argument specifically into the role and impact of the traditional political culture on the process of modernization, this paper aims to examine the “culture…
Abstract
Purpose
Contextualizing its argument specifically into the role and impact of the traditional political culture on the process of modernization, this paper aims to examine the “culture matters” approach through the two‐century experience of the top‐down modernization of the Ottoman‐Turkish civilization in the realm of state‐labor relations.
Design/methodology/approach
The paper makes a comparative analysis of the interplay between the state and craft associations in the Ottoman Empire, and then the state and labor organizations in contemporary Turkey in terms of the influence of the rules, norms and institutions transferred by the bureaucratic élites from Western Europe.
Findings
The paper concludes that a substantive democratic setting for the interplay of the state and labor organizations could not be built up without a self‐supportive political culture in view of the fact that the process of top‐down modernization/Europeanization in the Ottoman‐Turkish context has given rise to a never‐ending center‐periphery dichotomy between both inter‐class and intra‐class relationships.
Originality/value
The paper sheds light on the labor relations part of the Ottoman‐Turkish political culture and reveals its impact on the never‐ending top‐down modernization initiative.
Details