The Experts below are selected from a list of 192 Experts worldwide ranked by ideXlab platform
Peter Carlsson - One of the best experts on this subject based on the ideXlab platform.
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The effect of EBM process parameters upon surface roughness
Rapid Prototyping Journal, 2016Co-Authors: Rebecca Klingvall Ek, Lars‐erik Rännar, Mikael Bäckstöm, Peter CarlssonAbstract:Purpose The surface roughness of products manufactured using the additive manufacturing (AM) technology of electron beam melting (EBM) has a special characteristic. Different product applications can demand rougher or finer surface structure, so the purpose of this study is to investigate the process parameters of EBM to find out how they affect surface roughness. Design/methodology/approach EBM uses metal powder to manufacture metal parts. A design of Experiment Plan was used to describe the effects of the process parameters on the average surface roughness of vertical surfaces. Findings The most important electron beam setting for surface roughness, according to this study, is a combination of “speed and current” in the contours. The second most important parameter is “contour offset”. The interaction between the “number of contours” and “contour offset” also appears to be important, as it shows a much higher probability of being active than any other interaction. The results show that the “line offset”...
Rebecca Klingvall Ek - One of the best experts on this subject based on the ideXlab platform.
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The effect of EBM process parameters upon surface roughness
Rapid Prototyping Journal, 2016Co-Authors: Rebecca Klingvall Ek, Lars‐erik Rännar, Mikael Bäckstöm, Peter CarlssonAbstract:Purpose The surface roughness of products manufactured using the additive manufacturing (AM) technology of electron beam melting (EBM) has a special characteristic. Different product applications can demand rougher or finer surface structure, so the purpose of this study is to investigate the process parameters of EBM to find out how they affect surface roughness. Design/methodology/approach EBM uses metal powder to manufacture metal parts. A design of Experiment Plan was used to describe the effects of the process parameters on the average surface roughness of vertical surfaces. Findings The most important electron beam setting for surface roughness, according to this study, is a combination of “speed and current” in the contours. The second most important parameter is “contour offset”. The interaction between the “number of contours” and “contour offset” also appears to be important, as it shows a much higher probability of being active than any other interaction. The results show that the “line offset”...
Lars‐erik Rännar - One of the best experts on this subject based on the ideXlab platform.
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The effect of EBM process parameters upon surface roughness
Rapid Prototyping Journal, 2016Co-Authors: Rebecca Klingvall Ek, Lars‐erik Rännar, Mikael Bäckstöm, Peter CarlssonAbstract:Purpose The surface roughness of products manufactured using the additive manufacturing (AM) technology of electron beam melting (EBM) has a special characteristic. Different product applications can demand rougher or finer surface structure, so the purpose of this study is to investigate the process parameters of EBM to find out how they affect surface roughness. Design/methodology/approach EBM uses metal powder to manufacture metal parts. A design of Experiment Plan was used to describe the effects of the process parameters on the average surface roughness of vertical surfaces. Findings The most important electron beam setting for surface roughness, according to this study, is a combination of “speed and current” in the contours. The second most important parameter is “contour offset”. The interaction between the “number of contours” and “contour offset” also appears to be important, as it shows a much higher probability of being active than any other interaction. The results show that the “line offset”...
Mikael Bäckstöm - One of the best experts on this subject based on the ideXlab platform.
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The effect of EBM process parameters upon surface roughness
Rapid Prototyping Journal, 2016Co-Authors: Rebecca Klingvall Ek, Lars‐erik Rännar, Mikael Bäckstöm, Peter CarlssonAbstract:Purpose The surface roughness of products manufactured using the additive manufacturing (AM) technology of electron beam melting (EBM) has a special characteristic. Different product applications can demand rougher or finer surface structure, so the purpose of this study is to investigate the process parameters of EBM to find out how they affect surface roughness. Design/methodology/approach EBM uses metal powder to manufacture metal parts. A design of Experiment Plan was used to describe the effects of the process parameters on the average surface roughness of vertical surfaces. Findings The most important electron beam setting for surface roughness, according to this study, is a combination of “speed and current” in the contours. The second most important parameter is “contour offset”. The interaction between the “number of contours” and “contour offset” also appears to be important, as it shows a much higher probability of being active than any other interaction. The results show that the “line offset”...
Emrah şik - One of the best experts on this subject based on the ideXlab platform.
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evaluation of new vegetable based cutting fluids on thrust force and surface roughness in drilling of aisi 304 using taguchi method
Materials and Manufacturing Processes, 2011Co-Authors: Emel Kuram, Babur Ozcelik, E Demirbas, Emrah şik, I N TanselAbstract:This study focused on both formulation of vegetable-based cutting fluids (VBCFs) and machining with these cutting fluids. For this purpose, characterizations of chemical and physical analyses of these formulated cutting fluids were carried out. Performances of five cutting fluids, three VBCFs developed from crude and refined sunflower oils, and two commercial types, were investigated for thrust force and surface roughness during drilling of AISI 304 with HSS-E tool. Spindle speed, feed rate and drilling depth were considered as machining parameters. L9 orthogonal array was used for the Experiment Plan. Results were evaluated using regression analysis and ANOVA.
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optimization of surface roughness in drilling using vegetable based cutting oils developed from sunflower oil
Industrial Lubrication and Tribology, 2011Co-Authors: Babur Ozcelik, Emel Kuram, E Demirbas, Emrah şikAbstract:Purpose – The purpose of this paper is to investigate the performance of four cutting oils, two different vegetable‐based cutting fluids developed from refined sunflower oil and two commercial types (semi‐synthetic and mineral), for surface roughness during drilling of AISI 304 austenitic stainless steel with HSSE tool.Design/methodology/approach – L9 (33) orthogonal array was used for the Experiment Plan. Spindle speed, feed rate and drilling depth were considered as machining parameters.Findings – Results were evaluated statistically. Mathematical models based on cutting parameters were obtained from regression analyses to predict surface roughness. ANOVA was used to determine the effect of the cutting parameters on the surface roughness. The performance results were found to be better for vegetable‐based cutting oils than that of commercial ones.Originality/value – The paper reports on the use of refined sunflower oil in drilling stainless steel.
