Pub Date : 2023-05-26DOI: 10.1109/ICMIMT59138.2023.10201222
Petronella Nyakudya, N. Madushele, D. Madyira
Industrial Symbiosis (IS) has been known to contribute significantly to environmental and economic benefits for industrial clusters and by-product reuse. With the challenge posed by industrial waste to the environment and human health, the concept is explored as a panacea to Industrial Waste challenges in Harare with the purpose of moving from the traditional linear economy to a Circular Economy (CE) toward achieving Sustainable Development Goal (SDG) number 12 of sustainable production, consumption patterns. Questionnaires that yielded a 70% response rate facilitated the exploration by identifying types of industries, waste generated, and industrial waste management challenges faced. This was carried out to assist in identifying opportunities for synergies in IS implementation. Industry experts on CE and Central and Local Government experts were also interviewed from a regulatory point of view. A review of the current industrial waste management system revealed challenges of mounting solid waste attributed to negative economic policies and political, technical, and operational limitations. The Local Authority is characterized by a weak technical and administrative capacity to implement sound waste management mechanisms and a mismatch between planning and waste management policy implementation that create gaps between waste policies and decision-making. The research further revealed that ineffective industrial waste management has detrimental effects on environmental sustainability. Therefore, implementing IS diverts waste from the landfill contributing towards a CE. Furthermore, recommendations on how IS can be implemented towards a CE were made.
{"title":"Industrial Symbiosis: A Panacea to Industrial Waste Management Challenges in Harare","authors":"Petronella Nyakudya, N. Madushele, D. Madyira","doi":"10.1109/ICMIMT59138.2023.10201222","DOIUrl":"https://doi.org/10.1109/ICMIMT59138.2023.10201222","url":null,"abstract":"Industrial Symbiosis (IS) has been known to contribute significantly to environmental and economic benefits for industrial clusters and by-product reuse. With the challenge posed by industrial waste to the environment and human health, the concept is explored as a panacea to Industrial Waste challenges in Harare with the purpose of moving from the traditional linear economy to a Circular Economy (CE) toward achieving Sustainable Development Goal (SDG) number 12 of sustainable production, consumption patterns. Questionnaires that yielded a 70% response rate facilitated the exploration by identifying types of industries, waste generated, and industrial waste management challenges faced. This was carried out to assist in identifying opportunities for synergies in IS implementation. Industry experts on CE and Central and Local Government experts were also interviewed from a regulatory point of view. A review of the current industrial waste management system revealed challenges of mounting solid waste attributed to negative economic policies and political, technical, and operational limitations. The Local Authority is characterized by a weak technical and administrative capacity to implement sound waste management mechanisms and a mismatch between planning and waste management policy implementation that create gaps between waste policies and decision-making. The research further revealed that ineffective industrial waste management has detrimental effects on environmental sustainability. Therefore, implementing IS diverts waste from the landfill contributing towards a CE. Furthermore, recommendations on how IS can be implemented towards a CE were made.","PeriodicalId":286146,"journal":{"name":"2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127272053","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 : 2023-05-26DOI: 10.1109/ICMIMT59138.2023.10199994
S. Phokobye, Dawood Desai, I. Tlhabadira, R. Sadiku, I. Daniyan
Titanium alloys are said to be difficult-to-cut materials because of its relatively high strength, low ductile yield, low modulus of elasticity and low thermal conductivity. One of the ways by which the machinability of titanium alloy can be addressed is via the development of special cutting tool. Hence, this paper presents an experimental study for the investigation of cutting during milling of Ti6Al4V with SiAlON ceramic cutting inserts. Computer Numerical Control (CNC) milling machine was used to execute the practical experiments by making use of a dynamometer to measure the cutting forces and an infrared video camera for measuring the temperature generated during the machining of titanium (Ti-6Al-4V) alloy. Cutting parameters, which include cutting speed, feed/tooth, feed rate and depth of cut, were evaluated from the cutting inserts employed and the results were obtained with the help of the Kistler Software. The Response Surface Methodology (RSM) was adopted for the feasible combination of the process parameters for the physical experimentations and the results obtained for the experimental responses namely; cutting force, temperature, surface roughness and vibration were evaluated. The results indicate the feasibility of the SiAlON ceramic cutting inserts for machining titanium alloy. Furthermore, the statistical analysis of the responses results produced four mathematical models for predicting the magnitude of the experimental responses. This study presents empirical results and mathematical models that can assist machinists in achieving effective machinability of titanium alloy.
{"title":"Experimental Investigation of the Cutting Performance of SiAlON Ceramic Cutting Tool in Titanium Machining","authors":"S. Phokobye, Dawood Desai, I. Tlhabadira, R. Sadiku, I. Daniyan","doi":"10.1109/ICMIMT59138.2023.10199994","DOIUrl":"https://doi.org/10.1109/ICMIMT59138.2023.10199994","url":null,"abstract":"Titanium alloys are said to be difficult-to-cut materials because of its relatively high strength, low ductile yield, low modulus of elasticity and low thermal conductivity. One of the ways by which the machinability of titanium alloy can be addressed is via the development of special cutting tool. Hence, this paper presents an experimental study for the investigation of cutting during milling of Ti6Al4V with SiAlON ceramic cutting inserts. Computer Numerical Control (CNC) milling machine was used to execute the practical experiments by making use of a dynamometer to measure the cutting forces and an infrared video camera for measuring the temperature generated during the machining of titanium (Ti-6Al-4V) alloy. Cutting parameters, which include cutting speed, feed/tooth, feed rate and depth of cut, were evaluated from the cutting inserts employed and the results were obtained with the help of the Kistler Software. The Response Surface Methodology (RSM) was adopted for the feasible combination of the process parameters for the physical experimentations and the results obtained for the experimental responses namely; cutting force, temperature, surface roughness and vibration were evaluated. The results indicate the feasibility of the SiAlON ceramic cutting inserts for machining titanium alloy. Furthermore, the statistical analysis of the responses results produced four mathematical models for predicting the magnitude of the experimental responses. This study presents empirical results and mathematical models that can assist machinists in achieving effective machinability of titanium alloy.","PeriodicalId":286146,"journal":{"name":"2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121043432","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 : 2023-05-26DOI: 10.1109/ICMIMT59138.2023.10199376
N. Chirara, M. Pita
Compressor reciprocating speed is of paramount importance and must be carefully looked at by manufactures, and end users. In compressor designing, speed should be carefully examined because it has a big impact on efficiency of the machine and overall performance. The purpose of this paper is to analyze the effects of speed on two stage air compressors. In this investigation, the experiment was conducted, at 603, 1002, and 1617 (rpm) on the two-stage reciprocating compressor. The results revealed that the lowest speed had the highest isothermal efficiency of 86.7%, with the middle speed having 82.93% and the highest speed having 79.88%. This showed that at high speed the machine started experiencing same negative effects that ends up reducing efficiency.
{"title":"Investigate the Effect of Speed on Two Stage Air Compressor Performance","authors":"N. Chirara, M. Pita","doi":"10.1109/ICMIMT59138.2023.10199376","DOIUrl":"https://doi.org/10.1109/ICMIMT59138.2023.10199376","url":null,"abstract":"Compressor reciprocating speed is of paramount importance and must be carefully looked at by manufactures, and end users. In compressor designing, speed should be carefully examined because it has a big impact on efficiency of the machine and overall performance. The purpose of this paper is to analyze the effects of speed on two stage air compressors. In this investigation, the experiment was conducted, at 603, 1002, and 1617 (rpm) on the two-stage reciprocating compressor. The results revealed that the lowest speed had the highest isothermal efficiency of 86.7%, with the middle speed having 82.93% and the highest speed having 79.88%. This showed that at high speed the machine started experiencing same negative effects that ends up reducing efficiency.","PeriodicalId":286146,"journal":{"name":"2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131881724","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 : 2023-05-26DOI: 10.1109/ICMIMT59138.2023.10200580
Yupeng Jin, Jiayu Zhang
In the paper the 3D structure of the landing gear is modeled by Solid Works. Then, the Workbench function in Ansys was used to add the material properties of the axle mount of aircraft nose landing gear, divide the mesh of different sizes and add the pressure. The whole simulation will be divided into two tests, the first is to add the airframe pressure in the negative direction of Z axis, the second is to add the ground reaction force in the positive direction of Z axis. By comparing Factor of Safety (FOS) of air craft, so as to determine whether the carrying capacity of the axle mount meets the requirements.
{"title":"Finite Element Analysis the Axle Mount of an Aircraft Landing Gear","authors":"Yupeng Jin, Jiayu Zhang","doi":"10.1109/ICMIMT59138.2023.10200580","DOIUrl":"https://doi.org/10.1109/ICMIMT59138.2023.10200580","url":null,"abstract":"In the paper the 3D structure of the landing gear is modeled by Solid Works. Then, the Workbench function in Ansys was used to add the material properties of the axle mount of aircraft nose landing gear, divide the mesh of different sizes and add the pressure. The whole simulation will be divided into two tests, the first is to add the airframe pressure in the negative direction of Z axis, the second is to add the ground reaction force in the positive direction of Z axis. By comparing Factor of Safety (FOS) of air craft, so as to determine whether the carrying capacity of the axle mount meets the requirements.","PeriodicalId":286146,"journal":{"name":"2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126880213","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 : 2023-05-26DOI: 10.1109/ICMIMT59138.2023.10199541
Dennis Els, Jaco McLaren, T. V. van Niekerk, R. Phillips
The aim of this paper is to design and develop a modular soft robotic gripper that can enable traditional robots to perform better in unstructured environments and better handle soft and delicate objects. The soft robotic gripper proposed within the paper is created by fastening three fluid elastomer actuators in a star topology. These fluid elastomer actuators are designed with the goal of developing reliable actuators. It is also required that the material used to manufacture the actuators has a high availability and is cost effective. Furthermore, the paper sets out to parameterize the performance of the presented solution through a series of tests.
{"title":"Design, Fabrication and Analysis of a Soft Robotic Gripper Using Fluid Elastomer Actuators","authors":"Dennis Els, Jaco McLaren, T. V. van Niekerk, R. Phillips","doi":"10.1109/ICMIMT59138.2023.10199541","DOIUrl":"https://doi.org/10.1109/ICMIMT59138.2023.10199541","url":null,"abstract":"The aim of this paper is to design and develop a modular soft robotic gripper that can enable traditional robots to perform better in unstructured environments and better handle soft and delicate objects. The soft robotic gripper proposed within the paper is created by fastening three fluid elastomer actuators in a star topology. These fluid elastomer actuators are designed with the goal of developing reliable actuators. It is also required that the material used to manufacture the actuators has a high availability and is cost effective. Furthermore, the paper sets out to parameterize the performance of the presented solution through a series of tests.","PeriodicalId":286146,"journal":{"name":"2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134006655","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 : 2023-05-26DOI: 10.1109/ICMIMT59138.2023.10200667
O. Fatoba, T. Jen
In-situ monitoring involves assessing the state of an additively built item while it is being used to look for cracks or pores. The capacity to monitor and regulate the additive manufacturing (AM) process in real-time for in-process measurements determines the quality of the finished products. The manufacturing sector has not yet experienced a significant amount of AM’s effects. This is because there are a number of technological obstacles to be solved first, such as a lack of process comprehension and in-situ process monitoring and control, particularly in metal AM systems. Since they can have a significant impact on the printed microstructure and the functionality of subsequent products, AM processing parameters can be challenging to fine-tune. Building a process-structure-property-performance (PSPP) relationship for AM using conventional numerical and analytical models is a challenging task. Using acoustic emission (AE), it may be possible to identify and correct major flaws in additively manufactured parts before they cause further damage. This could reduce material waste, improve quality, and reduce the need for repair or rework.
{"title":"Acoustic-Based In-Situ Monitoring of Additive Manufacturing Fabrication: A Review","authors":"O. Fatoba, T. Jen","doi":"10.1109/ICMIMT59138.2023.10200667","DOIUrl":"https://doi.org/10.1109/ICMIMT59138.2023.10200667","url":null,"abstract":"In-situ monitoring involves assessing the state of an additively built item while it is being used to look for cracks or pores. The capacity to monitor and regulate the additive manufacturing (AM) process in real-time for in-process measurements determines the quality of the finished products. The manufacturing sector has not yet experienced a significant amount of AM’s effects. This is because there are a number of technological obstacles to be solved first, such as a lack of process comprehension and in-situ process monitoring and control, particularly in metal AM systems. Since they can have a significant impact on the printed microstructure and the functionality of subsequent products, AM processing parameters can be challenging to fine-tune. Building a process-structure-property-performance (PSPP) relationship for AM using conventional numerical and analytical models is a challenging task. Using acoustic emission (AE), it may be possible to identify and correct major flaws in additively manufactured parts before they cause further damage. This could reduce material waste, improve quality, and reduce the need for repair or rework.","PeriodicalId":286146,"journal":{"name":"2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131333696","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 : 2023-05-26DOI: 10.1109/ICMIMT59138.2023.10200538
Moses Oyesola, K. Mpofu, G. Kanakana-Katumba, I. Daniyan
The rising production complexity requires manufacturing industries to reach significance heights of intelligence and efficiency. In order to attain these expectations, cyber-physical system (CPS) in the context of Industry 4.0 is perceived as a transformation roadmap to reaching the intelligent manufacturing goal. The rise in automation systems stirs interesting digital revolutions of network of manufacturing and automation systems namely manufactronic. However, the current manufacturing execution systems (MES) heavily lacks in the adoption of this manufactronic being an emerging smart innovation. The aim of this paper is to project an oulook into the wave of smart manufacturing via cyber-physical system through the window of manufactronic in the web of manufacturing execution system. The study based on outlook proffer a frame architectural model that embodies the integration of the aforementioned manufactory proposition into structure. The essence is to spark manufacturability in the direction of bespoke solution of integrated network of internet into mechanical, electronic devices to realize smart automated manufacturing efficient enterprise’s functions and services
{"title":"Enabling Smart Manufacturing Using Cyber-Physical System with the Outlook of Manufactronic","authors":"Moses Oyesola, K. Mpofu, G. Kanakana-Katumba, I. Daniyan","doi":"10.1109/ICMIMT59138.2023.10200538","DOIUrl":"https://doi.org/10.1109/ICMIMT59138.2023.10200538","url":null,"abstract":"The rising production complexity requires manufacturing industries to reach significance heights of intelligence and efficiency. In order to attain these expectations, cyber-physical system (CPS) in the context of Industry 4.0 is perceived as a transformation roadmap to reaching the intelligent manufacturing goal. The rise in automation systems stirs interesting digital revolutions of network of manufacturing and automation systems namely manufactronic. However, the current manufacturing execution systems (MES) heavily lacks in the adoption of this manufactronic being an emerging smart innovation. The aim of this paper is to project an oulook into the wave of smart manufacturing via cyber-physical system through the window of manufactronic in the web of manufacturing execution system. The study based on outlook proffer a frame architectural model that embodies the integration of the aforementioned manufactory proposition into structure. The essence is to spark manufacturability in the direction of bespoke solution of integrated network of internet into mechanical, electronic devices to realize smart automated manufacturing efficient enterprise’s functions and services","PeriodicalId":286146,"journal":{"name":"2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133180312","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 : 2023-05-26DOI: 10.1109/ICMIMT59138.2023.10200559
Jacques C. Welgemoed, R. Phillips, T. V. Niekerk
Effective security systems in rural South Africa are particularly challenging due to the rugged terrain and large areas in need of securing. The security of these areas is vital as they contribute greatly to the nation’s food security and tourism industry. The need for an effective security system in these areas is evident when examining the crime statistics regarding livestock theft and poaching. This paper proposes the use of Unmanned Aerial Vehicles (UAVs), Robot Operating System (ROS), and the PX4 flight stack for automated alarm response, mission execution, and precise landings. We show that the automation is effective by simulating an alarm scenario and demonstrating the automation’s use in subsequent landing tests. The landing precision was quantified by the mean position error measured from the centre of a landing target and was found as 0.193m with a standard deviation of 0.064m. The small standard deviation indicates that the landing precision was highly repeatable. This showed a considerable improvement over GPS-based landings, which yielded an average deviation of 0.910m with a standard deviation of 0.424m. The standard deviation here clearly indicated that traditional GPS-based landings were unsuitable for this application. The use of analogue video transmission and telemetry radios allowed the proposed solution to function in areas without any existing network infrastructure. Our results show that a low-cost UAV system can be created to address the concerns related to alarm response times in rural South Africa.
{"title":"An Autonomous Multirotor UAV for Security Systems in Rural South Africa","authors":"Jacques C. Welgemoed, R. Phillips, T. V. Niekerk","doi":"10.1109/ICMIMT59138.2023.10200559","DOIUrl":"https://doi.org/10.1109/ICMIMT59138.2023.10200559","url":null,"abstract":"Effective security systems in rural South Africa are particularly challenging due to the rugged terrain and large areas in need of securing. The security of these areas is vital as they contribute greatly to the nation’s food security and tourism industry. The need for an effective security system in these areas is evident when examining the crime statistics regarding livestock theft and poaching. This paper proposes the use of Unmanned Aerial Vehicles (UAVs), Robot Operating System (ROS), and the PX4 flight stack for automated alarm response, mission execution, and precise landings. We show that the automation is effective by simulating an alarm scenario and demonstrating the automation’s use in subsequent landing tests. The landing precision was quantified by the mean position error measured from the centre of a landing target and was found as 0.193m with a standard deviation of 0.064m. The small standard deviation indicates that the landing precision was highly repeatable. This showed a considerable improvement over GPS-based landings, which yielded an average deviation of 0.910m with a standard deviation of 0.424m. The standard deviation here clearly indicated that traditional GPS-based landings were unsuitable for this application. The use of analogue video transmission and telemetry radios allowed the proposed solution to function in areas without any existing network infrastructure. Our results show that a low-cost UAV system can be created to address the concerns related to alarm response times in rural South Africa.","PeriodicalId":286146,"journal":{"name":"2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126075524","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 : 2023-05-26DOI: 10.1109/ICMIMT59138.2023.10200549
Thabiso Tekisi, V. Srivastava
This research work entails designing and analyzing a differential amplifier that utilizes BF988 Double-Gate (DG) MOSFET. Different parameters have been analyzed to observe the performance of the amplifier. The active load has been used instead of the resistive load to improve the differential gain of the system significantly. The simulated results of differential gain, switching losses, conduction losses, and total power losses were obtained as 15.85 V/V, 0.1 μW, 85.8 mW, and 1.73 W, respectively. From these results, the proposed amplifier is suitable for RF applications, input stages of the operational amplifier, medical measuring instruments, etc.
{"title":"Analytical Approach for Losses in Differential Amplifier Using Double-Gate MOSFET","authors":"Thabiso Tekisi, V. Srivastava","doi":"10.1109/ICMIMT59138.2023.10200549","DOIUrl":"https://doi.org/10.1109/ICMIMT59138.2023.10200549","url":null,"abstract":"This research work entails designing and analyzing a differential amplifier that utilizes BF988 Double-Gate (DG) MOSFET. Different parameters have been analyzed to observe the performance of the amplifier. The active load has been used instead of the resistive load to improve the differential gain of the system significantly. The simulated results of differential gain, switching losses, conduction losses, and total power losses were obtained as 15.85 V/V, 0.1 μW, 85.8 mW, and 1.73 W, respectively. From these results, the proposed amplifier is suitable for RF applications, input stages of the operational amplifier, medical measuring instruments, etc.","PeriodicalId":286146,"journal":{"name":"2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124981127","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 : 2023-05-26DOI: 10.1109/ICMIMT59138.2023.10199225
I. Daniyan, K. Mpofu, A. Adeodu, Moses Oyesola
AISI D3 is a high carbon-high chromium tool steel with vast industrial applications. However, its hardenability makes it difficult to machine. This study considers the turning operation of AISI D3 under the soluble oil cooling condition. Three process parameters were considered in the following range: depth of cut (0.2-0.6 mm), feed rate (0.1-0.2 mm/rev) and cutting speed (200-300 m/min). The response surface methodology (RSM) was employed to obtain the feasible combination of the process parameters while the surface roughness was taken as the response of the designed experiment. A centre lathe (CTX 310 eco DMG) was employed for the turning operation while a PVD cubic boron nitride (CBN)-titanium nitride (TiN) coated insert manufactured by the SANDVIK Coromant was employed as the cutting tool. The heat-treated tool steel has a specification of $(phi 75 times 250 {mathrm {mm}}$ with hardness 58 ± 1HRC). The results obtained indicated that the combination of the process parameters that produced the least surface roughness $(0.235 mu {mathrm {m}})$ are feed rate (0.15 m /rev), cutting speed (165 m/min) and depth of cut (0.40 mm). There was also a significant agreement between the surface roughness values obtained via physical experimentations and the ones obtained from the predictive model equation generated by the RSM. This study presents empirical results that could assist machinist determine the feasible range of process parameters for the turning operation of AISI D3. The findings could also assists in machining AISI D3 to the desired degree of surface finish.
{"title":"Hard Turning Operation of Alloy Tool Steel (AISI D3) Using Cubic Boron Cutting Tool","authors":"I. Daniyan, K. Mpofu, A. Adeodu, Moses Oyesola","doi":"10.1109/ICMIMT59138.2023.10199225","DOIUrl":"https://doi.org/10.1109/ICMIMT59138.2023.10199225","url":null,"abstract":"AISI D3 is a high carbon-high chromium tool steel with vast industrial applications. However, its hardenability makes it difficult to machine. This study considers the turning operation of AISI D3 under the soluble oil cooling condition. Three process parameters were considered in the following range: depth of cut (0.2-0.6 mm), feed rate (0.1-0.2 mm/rev) and cutting speed (200-300 m/min). The response surface methodology (RSM) was employed to obtain the feasible combination of the process parameters while the surface roughness was taken as the response of the designed experiment. A centre lathe (CTX 310 eco DMG) was employed for the turning operation while a PVD cubic boron nitride (CBN)-titanium nitride (TiN) coated insert manufactured by the SANDVIK Coromant was employed as the cutting tool. The heat-treated tool steel has a specification of $(phi 75 times 250 {mathrm {mm}}$ with hardness 58 ± 1HRC). The results obtained indicated that the combination of the process parameters that produced the least surface roughness $(0.235 mu {mathrm {m}})$ are feed rate (0.15 m /rev), cutting speed (165 m/min) and depth of cut (0.40 mm). There was also a significant agreement between the surface roughness values obtained via physical experimentations and the ones obtained from the predictive model equation generated by the RSM. This study presents empirical results that could assist machinist determine the feasible range of process parameters for the turning operation of AISI D3. The findings could also assists in machining AISI D3 to the desired degree of surface finish.","PeriodicalId":286146,"journal":{"name":"2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130172003","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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