Pub Date : 1900-01-01DOI: 10.14744/ytu.jame.2022.00003
A. Mamedov
{"title":"3D SPH-FEM modelling of micro milling of Ti-6Al-4V","authors":"A. Mamedov","doi":"10.14744/ytu.jame.2022.00003","DOIUrl":"https://doi.org/10.14744/ytu.jame.2022.00003","url":null,"abstract":"","PeriodicalId":309855,"journal":{"name":"Journal of Advances in Manufacturing Engineering","volume":"445 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115928278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.14744/ytu.jame.2021.00001
H. Khan, G. Tarakci, M. Bulduk, E. Koç
Selective laser sintering (SLS) is a process of fabrication of three-dimensional structures by fus- ing powder particles using a guided laser source. The uncertainty in the mechanical properties of the SLS parts fabricated at the same time and with the same process parameters can affect the repeatability of the SLS process. A vast difference in the mechanical properties of the concurrently processed parts can lower the production quality of the batch. Therefore, the param- eters are required to be design based on the most probable outcome of the desired properties. Weibull distribution is one such statistical-based probability distribution method to measure the likelihood of the occurrence of a value of any random variable falling within a particular range of values. Here, the Weibull distribution was used to measure the relative likelihood (90% probability) of the surface roughness and the compressive strength values of the SLS-built polyamide PA2200 components in the given sample space that was obtained from 20 random samples. The results show that the variance in the surface roughness (scan and built plane) and the compressive strength values were in the range of 6–7 μm and around 10 MPa, respectively. Moreover, the surface roughness of the two orthogonal planes with 90% reliability was measured at 14.81 μm (scan plane) and 12.15 μm (built plane). Similarly, the yield strength and the compressive strength with 90% reliability were found 25.87 MPa and 62.64 MPa, respectively.
{"title":"Estimation of the compression strength and surface roughness of the as-built SLS components using weibull distribution","authors":"H. Khan, G. Tarakci, M. Bulduk, E. Koç","doi":"10.14744/ytu.jame.2021.00001","DOIUrl":"https://doi.org/10.14744/ytu.jame.2021.00001","url":null,"abstract":"Selective laser sintering (SLS) is a process of fabrication of three-dimensional structures by fus- ing powder particles using a guided laser source. The uncertainty in the mechanical properties of the SLS parts fabricated at the same time and with the same process parameters can affect the repeatability of the SLS process. A vast difference in the mechanical properties of the concurrently processed parts can lower the production quality of the batch. Therefore, the param- eters are required to be design based on the most probable outcome of the desired properties. Weibull distribution is one such statistical-based probability distribution method to measure the likelihood of the occurrence of a value of any random variable falling within a particular range of values. Here, the Weibull distribution was used to measure the relative likelihood (90% probability) of the surface roughness and the compressive strength values of the SLS-built polyamide PA2200 components in the given sample space that was obtained from 20 random samples. The results show that the variance in the surface roughness (scan and built plane) and the compressive strength values were in the range of 6–7 μm and around 10 MPa, respectively. Moreover, the surface roughness of the two orthogonal planes with 90% reliability was measured at 14.81 μm (scan plane) and 12.15 μm (built plane). Similarly, the yield strength and the compressive strength with 90% reliability were found 25.87 MPa and 62.64 MPa, respectively.","PeriodicalId":309855,"journal":{"name":"Journal of Advances in Manufacturing Engineering","volume":"405 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122116735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.14744/ytu.jame.2021.00005
Süleyman Çi̇çek
In order to be competitive in manufacturing industries, it is essential to create high performance machining processes in manufacturing plant. One of the effective ways to improve the performance of machining processes is cutting tools. Although there are various standard cutting tools, it is also possible to design a special tool to have high performance cutting by elim-inating the number of steps. This study focuses on designing a new cutting tools to have high performance machining process of one of the commonly known brass alloys, CuZN40Pb2 in mass production. In this study, two teeth form brazed carbide boring tools with different geometries in terms of radial rake angle and cutting-edge radius have been utilized in order to evaluate the machining performance during boring operation of CuZn40Pb2. Edge radius of brazed carbide cutting tools varied to enhance performance of cutting tool and resulting cutting forces and surface quality of machined parts are examined carefully. It illustrated that this designed tool provides high performance cutting by controlling some design parameters including edge radius and rake angle. a special cutting tool for high performance machining
{"title":"Designing a special cutting tool for high performance machining of CuZn40Pb2 brass alloy","authors":"Süleyman Çi̇çek","doi":"10.14744/ytu.jame.2021.00005","DOIUrl":"https://doi.org/10.14744/ytu.jame.2021.00005","url":null,"abstract":"In order to be competitive in manufacturing industries, it is essential to create high performance machining processes in manufacturing plant. One of the effective ways to improve the performance of machining processes is cutting tools. Although there are various standard cutting tools, it is also possible to design a special tool to have high performance cutting by elim-inating the number of steps. This study focuses on designing a new cutting tools to have high performance machining process of one of the commonly known brass alloys, CuZN40Pb2 in mass production. In this study, two teeth form brazed carbide boring tools with different geometries in terms of radial rake angle and cutting-edge radius have been utilized in order to evaluate the machining performance during boring operation of CuZn40Pb2. Edge radius of brazed carbide cutting tools varied to enhance performance of cutting tool and resulting cutting forces and surface quality of machined parts are examined carefully. It illustrated that this designed tool provides high performance cutting by controlling some design parameters including edge radius and rake angle. a special cutting tool for high performance machining","PeriodicalId":309855,"journal":{"name":"Journal of Advances in Manufacturing Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128766124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.14744/ytu.jame.2021.00007
Erkan Bahçe
{"title":"An investigation of the effects of cryogen application direction on Ti6Al4V alloy milling","authors":"Erkan Bahçe","doi":"10.14744/ytu.jame.2021.00007","DOIUrl":"https://doi.org/10.14744/ytu.jame.2021.00007","url":null,"abstract":"","PeriodicalId":309855,"journal":{"name":"Journal of Advances in Manufacturing Engineering","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125555100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.14744/ytu.jame.2022.00007
N. Zoghipour
{"title":"Feasibility studies for an enhanced flat bottom drill tool design considering modal and resonance using finite element methods","authors":"N. Zoghipour","doi":"10.14744/ytu.jame.2022.00007","DOIUrl":"https://doi.org/10.14744/ytu.jame.2022.00007","url":null,"abstract":"","PeriodicalId":309855,"journal":{"name":"Journal of Advances in Manufacturing Engineering","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117077536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.14744/ytu.jame.2021.00009
Talha Çakmak
{"title":"The effects of failure types on cold forging dies","authors":"Talha Çakmak","doi":"10.14744/ytu.jame.2021.00009","DOIUrl":"https://doi.org/10.14744/ytu.jame.2021.00009","url":null,"abstract":"","PeriodicalId":309855,"journal":{"name":"Journal of Advances in Manufacturing Engineering","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127000176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.14744/ytu.jame.2022.00008
N. Yakut
Metal-based composites (MMCs) have been a major material widely used in aerospace, automotive, and other machinery industries that require low weight and high performance for the last 50 years. Machining of metal matrix composites is quite difficult due to discontinuities in the structure of the material. As a result, it is important to understand all the factors that affect tool wear. Appropriate tool selection is one of the most important parameters to improve process quality and extend tool utilization time. The tool materials are ranging from tool steel to carbide cutters and other coating materials. This study aims to investigate various cutting tools for machining metal matrix composite in a conventional machining process. The effect of cutting tool selection on process parameters is determined in the processing of composite and microstructure, as well as on surface finishing fluid, cutting force, tool life, and tool wear. Cite this article as: Yakut N. (2022). Cutting tool selection for machining metal matrix composites. J Adv Manuf Eng , 3(2), 64–76.
{"title":"Cutting tool selection for machining metal matrix composites","authors":"N. Yakut","doi":"10.14744/ytu.jame.2022.00008","DOIUrl":"https://doi.org/10.14744/ytu.jame.2022.00008","url":null,"abstract":"Metal-based composites (MMCs) have been a major material widely used in aerospace, automotive, and other machinery industries that require low weight and high performance for the last 50 years. Machining of metal matrix composites is quite difficult due to discontinuities in the structure of the material. As a result, it is important to understand all the factors that affect tool wear. Appropriate tool selection is one of the most important parameters to improve process quality and extend tool utilization time. The tool materials are ranging from tool steel to carbide cutters and other coating materials. This study aims to investigate various cutting tools for machining metal matrix composite in a conventional machining process. The effect of cutting tool selection on process parameters is determined in the processing of composite and microstructure, as well as on surface finishing fluid, cutting force, tool life, and tool wear. Cite this article as: Yakut N. (2022). Cutting tool selection for machining metal matrix composites. J Adv Manuf Eng , 3(2), 64–76.","PeriodicalId":309855,"journal":{"name":"Journal of Advances in Manufacturing Engineering","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133818902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.14744/ytu.jame.2021.00003
H. Khan, M. Dirikolu, E. Koç
Selective laser melting (SLM) is an additive manufacturing process to fabricate three-dimen- sional structures by fusing powder particles using a computer-guided laser source. The SLM process can produce lightweight bespoke designs, having high strength comparable to con- ventional components. However, the developed surface texture and some of the mechanical properties are still sub-standard compared to the conventional components. The process un- certainty can produce inconsistency in parts’ properties, even those prepared concurrently, affecting SLM parts' repeatability and quality. Therefore, designing applications based on the most probable outcome of the desired properties can embrace process uncertainty. Weibull distribution is a statistical-based probability distribution method that measures the likelihood of the values’ occurrence of any random variable falling in a specific set of values. In this study, the Weibull distribution measured the relative likelihood (90% probability) of the compressive yield, and ultimate strength of the SLM prepared AlSi10Mg samples in a given 22 random sample size. The results showed that the compressive yield and ultimate strength fall between 321 MPa to 382 MPa and 665 MPa to 883 MPa.
{"title":"Weibull distribution of selective laser melted AlSi10Mg parts for compression testing","authors":"H. Khan, M. Dirikolu, E. Koç","doi":"10.14744/ytu.jame.2021.00003","DOIUrl":"https://doi.org/10.14744/ytu.jame.2021.00003","url":null,"abstract":"Selective laser melting (SLM) is an additive manufacturing process to fabricate three-dimen- sional structures by fusing powder particles using a computer-guided laser source. The SLM process can produce lightweight bespoke designs, having high strength comparable to con- ventional components. However, the developed surface texture and some of the mechanical properties are still sub-standard compared to the conventional components. The process un- certainty can produce inconsistency in parts’ properties, even those prepared concurrently, affecting SLM parts' repeatability and quality. Therefore, designing applications based on the most probable outcome of the desired properties can embrace process uncertainty. Weibull distribution is a statistical-based probability distribution method that measures the likelihood of the values’ occurrence of any random variable falling in a specific set of values. In this study, the Weibull distribution measured the relative likelihood (90% probability) of the compressive yield, and ultimate strength of the SLM prepared AlSi10Mg samples in a given 22 random sample size. The results showed that the compressive yield and ultimate strength fall between 321 MPa to 382 MPa and 665 MPa to 883 MPa.","PeriodicalId":309855,"journal":{"name":"Journal of Advances in Manufacturing Engineering","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129098581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.14744/ytu.jame.2022.00006
Barış Kabataş
{"title":"Process optimization for hot forging of difficult parts by computer experiments and response surface analysis","authors":"Barış Kabataş","doi":"10.14744/ytu.jame.2022.00006","DOIUrl":"https://doi.org/10.14744/ytu.jame.2022.00006","url":null,"abstract":"","PeriodicalId":309855,"journal":{"name":"Journal of Advances in Manufacturing Engineering","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121599297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.14744/ytu.jame.2021.00002
B. Şener
In the present work, the prediction capability of Yld89 criterion from anisotropic yield func- tions was investigated in the view of the anisotropic behavior of the sheet metals. Investigation was conducted on two highly anisotropic sheet materials: an aluminum alloy (AA2090-T3) and an advanced high strength steel (TRIP 780). The in-plane variation of material anisotropy and normalized yield surface contours were considered in the evaluation of the prediction capability of the criterion. Firstly, the model coefficients were determined according to stress and strain based definitions. Then, the planar variations of the yield stress and plastic strain ratios and normalized yield surface contours of the materials were predicted according to both identification procedures. Finally, the computed results were compared with experiments to evaluate prediction capability of the model. It was observed from the comparisons that the pla- nar variations of the yield stress ratio could successfully predicted by stress based definition, while the variations of the plastic strain ratios in the sheet plane could accurately predicted by strain based definition. Besides, it was determined that elastic region predicted from strain based definition was larger than stress based definition for AA2090-T3, while the predicted elastic region from stress based definition was slightly larger in than that of strain based defi- nition for TRIP 780 material.
{"title":"Investigation of the prediction capability of Yld89 yield criterion for highly anisotropic sheet materials","authors":"B. Şener","doi":"10.14744/ytu.jame.2021.00002","DOIUrl":"https://doi.org/10.14744/ytu.jame.2021.00002","url":null,"abstract":"In the present work, the prediction capability of Yld89 criterion from anisotropic yield func- tions was investigated in the view of the anisotropic behavior of the sheet metals. Investigation was conducted on two highly anisotropic sheet materials: an aluminum alloy (AA2090-T3) and an advanced high strength steel (TRIP 780). The in-plane variation of material anisotropy and normalized yield surface contours were considered in the evaluation of the prediction capability of the criterion. Firstly, the model coefficients were determined according to stress and strain based definitions. Then, the planar variations of the yield stress and plastic strain ratios and normalized yield surface contours of the materials were predicted according to both identification procedures. Finally, the computed results were compared with experiments to evaluate prediction capability of the model. It was observed from the comparisons that the pla- nar variations of the yield stress ratio could successfully predicted by stress based definition, while the variations of the plastic strain ratios in the sheet plane could accurately predicted by strain based definition. Besides, it was determined that elastic region predicted from strain based definition was larger than stress based definition for AA2090-T3, while the predicted elastic region from stress based definition was slightly larger in than that of strain based defi- nition for TRIP 780 material.","PeriodicalId":309855,"journal":{"name":"Journal of Advances in Manufacturing Engineering","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132205516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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