Advances in Science and Technology-Research Journal最新文献_第10页

Diagnosis of Students' Mathematical Background to Address Manufacturing Courses 针对制造课程学生数学背景的诊断

Advances in Science and Technology-Research Journal Pub Date : 2023-10-02 DOI: 10.4028/p-jn3r5q

Julio Serrano, Gracia M. Bruscas-Bellido, Sergio Benavent-Nácher, Pedro Rosado-Castellano, Jose V. Abellán-Nebot

{"title":"Diagnosis of Students' Mathematical Background to Address Manufacturing Courses","authors":"Julio Serrano, Gracia M. Bruscas-Bellido, Sergio Benavent-Nácher, Pedro Rosado-Castellano, Jose V. Abellán-Nebot","doi":"10.4028/p-jn3r5q","DOIUrl":"https://doi.org/10.4028/p-jn3r5q","url":null,"abstract":"In the context of engineering studies, and specifically in courses related to manufacturing processes, student must solve practical problems by applying a high variety of knowledge and skills that should have been acquired from previous courses, such as statistics, geometrical and dimensional tolerancing, physics, materials and metallurgy, mathematics, etc. Therefore, it can be expected that the degree of assimilation and retention of knowledge reached at these first-year courses has a relevant influence on the students’ performance in later manufacturing courses. In this sense, during last years the authors have identified many errors in the students’ tests due to the deficient assimilation of basic concepts from previous courses, such as physical concepts (torque, power, energy, etc.) or mathematical concepts (inequalities, use of exponential functions and logarithms, trigonometry, properties of statistical distributions, etc.), among others. In this work, the students’ performance in manufacturing courses and the relationship with their competences in mathematics acquired in previous years are analyzed. For this purpose, the students’ background on these fundamental previous courses is analyzed through a test at the beginning of the semester. The study will be conducted on third-year courses in mechanical engineering, industrial engineering, and industrial design engineering degrees.","PeriodicalId":46357,"journal":{"name":"Advances in Science and Technology-Research Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135833757","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}

引用次数: 0

Tailoring HALT/HASS Tests towards Product Reliability Growth and Cost Saving 为提高产品可靠性和节约成本量身定制HALT/HASS测试

Advances in Science and Technology-Research Journal Pub Date : 2023-10-02 DOI: 10.4028/p-xy8ssn

Francesco Mancusi, Vito Romaniello, Fabio Fruggiero, Salvatore Martino, Alfredo Drago, Alfredo Lambiase

引用次数: 0

Influence of a Single Machine-Tool Vibration on the Workpiece Waviness Profile in Turning 车削过程中单台机床振动对工件波纹形的影响

Advances in Science and Technology-Research Journal Pub Date : 2023-10-02 DOI: 10.4028/p-gbdzx9

Monica Gil-Inchaurza, Xavier Beudaert, Jokin Munoa, David Barrenetxea, José Antonio Sánchez

引用次数: 0

Performance Improvement in Service Manufacturing Lines Supported by Information Sharing and Task Assignment Flexibility 信息共享和任务分配灵活性支持的服务型生产线绩效改进

Advances in Science and Technology-Research Journal Pub Date : 2023-10-02 DOI: 10.4028/p-6qkrbp

Ana G. Arteaga, Roque Calvo

{"title":"Performance Improvement in Service Manufacturing Lines Supported by Information Sharing and Task Assignment Flexibility","authors":"Ana G. Arteaga, Roque Calvo","doi":"10.4028/p-6qkrbp","DOIUrl":"https://doi.org/10.4028/p-6qkrbp","url":null,"abstract":"The combination of automation and workforce must be properly analyzed during design to ensure coupled control coordination. Otherwise, we find challenges that end increasing the losses or the cost. The flexibility of the process is based on the combinations in which the parts of the system can interact and work collaboratively. This seemingly heuristic approach in current sorting lines is the basis for time efficiency. This research presents a systematic analysis of a three lines conveyor for manual sorting with a shared and segregated information system. This system uses a central information display which provides the workers the direction and location guidance for the operation. The layout is based on a real packing and sorting line from commercial transportation. This is an upgrade to the hand scanner system where the worker could advance the allocation information instead of retaining in mind the current mapping to asset the task quickly, thus this causes irregular utilization between workers, being this an uncontrollable variable. The results show how the communication between systems and the access to information in real time improve the performance of the worker and, in turn, the process time is reduced. In addition to the increase of production output, the overall quality performance improves as the learning curve of operator evolves without retention in task repetition.","PeriodicalId":46357,"journal":{"name":"Advances in Science and Technology-Research Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135833187","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}

引用次数: 0

A Modelica Library to Simulate Geometrical and Dimensional Deviations in Process Assemblies 模拟工艺装配中几何和尺寸偏差的Modelica库

Advances in Science and Technology-Research Journal Pub Date : 2023-10-02 DOI: 10.4028/p-7igimi

David Aguilella Antolí, Pedro Rosado-Castellano, Sergio Benavent Nácher

{"title":"A Modelica Library to Simulate Geometrical and Dimensional Deviations in Process Assemblies","authors":"David Aguilella Antolí, Pedro Rosado-Castellano, Sergio Benavent Nácher","doi":"10.4028/p-7igimi","DOIUrl":"https://doi.org/10.4028/p-7igimi","url":null,"abstract":"The main goal of production quality paradigm is a joint improvement of production rate and conformity, while minimizing the waste of resources. This paradigm is aligned with the Zero-Defect Manufacturing (ZDM) approach, which aim is the defect removal in manufactured products. Simulation tools offer a high flexibility to analyse complex systems such as multi-stage manufacturing systems, allowing to optimize the required production rates and the quality of the products. To this end it is necessary to develop simulation models that integrate the discrete behaviour of products flow, and the spread of quality characteristics during the process. This work is focused on the modelling of the geometrical quality characteristics that depend on the deviations induced when the part is held by a processing fixture. For the modelling of this behaviour, Modelica language is selected because of its ability to integrate the modelling of multi-physical systems, including the discreet behaviour necessary to simulate the materials flow. For that purpose, this paper presents a Modelica library for the definition of simulation models able to analyse geometrical and dimensional deviations produced in process assemblies composed of a piece and a fixture. The use of Modelica language, which modelling is based on equations, requires the definition of a mathematical structure, based in this case on the TTRS (Technologically and Topologically Related Surfaces) model.","PeriodicalId":46357,"journal":{"name":"Advances in Science and Technology-Research Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135833193","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}

引用次数: 0

Augmented Reality in Industrial Manufacturing - Identification of Application Areas for AR-Based Quality Control/Assembly Based on Technology Suitability 工业制造中的增强现实-基于ar的质量控制/基于技术适用性的装配的应用领域识别

Advances in Science and Technology-Research Journal Pub Date : 2023-10-02 DOI: 10.4028/p-6wb7q2

Phuong Thao Ho, José Antonio Albajez, Jorge Santolaria Mazo, José Antonio Yagüe-Fabra

{"title":"Augmented Reality in Industrial Manufacturing - Identification of Application Areas for AR-Based Quality Control/Assembly Based on Technology Suitability","authors":"Phuong Thao Ho, José Antonio Albajez, Jorge Santolaria Mazo, José Antonio Yagüe-Fabra","doi":"10.4028/p-6wb7q2","DOIUrl":"https://doi.org/10.4028/p-6wb7q2","url":null,"abstract":"Augmented Reality (AR) has started to be gradually utilized in industrial manufacturing. However, the gap between novel stage and industrial AR-based applications must be comprehensively solved. In this study, the task technology fit (TTF) and method of time measurement (MTM) are applied and put together to create a comprehensive map demonstrating the relationship between manufacturing tasks and AR-solution features. In addition, this map will support exploring the suitability of AR-based solutions and identifying the application areas of AR for industrial manufacturing, primarily focused on quality control, metrology and assembly tasks. By considering both the viewpoint of developers/users and the scientific principles underlying manufacturing tasks in this comprehensive map, the usability and effectiveness of the final AR solution are also ensured at an early stage of AR-based application development.As a result, this paper provides a useful system to utilize AR capabilities for more complex-multistep tasks in a standardized way. Thus, more potential development and improvement of AR-based solutions for quality 4.0, virtual metrology, and complex assemblies in an industrial manufacturing context could be holistically established and built.","PeriodicalId":46357,"journal":{"name":"Advances in Science and Technology-Research Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135833209","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}

引用次数: 0

Determination of Cost-Effective Machining Strategies for Rough Pocket Milling of Aluminum by Computer-Aided Manufacturing 基于计算机辅助制造的铝粗袋铣削经济高效加工策略的确定

Advances in Science and Technology-Research Journal Pub Date : 2023-10-02 DOI: 10.4028/p-2kdotw

Enrique García-Martínez, Valentín Miguel, Ángel Mancebo, Alberto Martínez-Martínez

{"title":"Determination of Cost-Effective Machining Strategies for Rough Pocket Milling of Aluminum by Computer-Aided Manufacturing","authors":"Enrique García-Martínez, Valentín Miguel, Ángel Mancebo, Alberto Martínez-Martínez","doi":"10.4028/p-2kdotw","DOIUrl":"https://doi.org/10.4028/p-2kdotw","url":null,"abstract":"Pocketing is one of the most important operations in the machining of complex parts. This milling process usually consumes a large part of the total machining time, especially if an extensive quantity of material is involved, determining the efficiency of the process. This paper studies the influence of the machining strategy and cutting conditions, and the geometry of the pocket on the machining time and cost when milling AW2007 aluminum alloy. For that purpose, a combined methodology based on experimental tests and CAM simulation is proposed. Cost analysis, which represents the main novelty of the research, takes into consideration, properly, the cutting time required to complete the pocket, the tool life, the tool change time and some economic factors such as power and tool costs. Spiral, curvilinear, parallel and zig-zag machining paths, along with seven different pocket geometries, are considered. Parallel and curvilinear milling trajectories have been found as the most cost-effective strategies. The efficiency of the parallel strategy increases with respect to the others as the geometry of the pocket becomes less compact, i.e., it is defined with a higher shape factor. According to the experimental tests and cost results, the machining operation should be performed with the highest feed rate, axial depth and cutting speed of the experimented values, 0.2 mm/tooth, 10 mm and 200 mm/min, respectively.","PeriodicalId":46357,"journal":{"name":"Advances in Science and Technology-Research Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135833999","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}

引用次数: 0

Design of a Test Bench to Measure In-Plane Friction Forces Produced by a New Under-Actuated Modular Device 一种新型欠驱动模块化装置面内摩擦力测试平台的设计

Advances in Science and Technology-Research Journal Pub Date : 2023-10-02 DOI: 10.4028/p-d8pgks

Edoardo Bianchi, Oliver Jonas Jorg, Gualtiero Fantoni, Francisco Javier Brosed Dueso, José Antonio Yagüe-Fabra

{"title":"Design of a Test Bench to Measure In-Plane Friction Forces Produced by a New Under-Actuated Modular Device","authors":"Edoardo Bianchi, Oliver Jonas Jorg, Gualtiero Fantoni, Francisco Javier Brosed Dueso, José Antonio Yagüe-Fabra","doi":"10.4028/p-d8pgks","DOIUrl":"https://doi.org/10.4028/p-d8pgks","url":null,"abstract":"Flexible and adaptive systems for handling and transporting materials within companies and warehouses are increasingly being studied in order to respond to the variability of production and the market. Following this trend, the authors, seeking a simplified design and control, proposed a novel under-actuated modular surface that exploits the friction forces generated by idler rotors inside the modules, for object manipulation. On this subject, the paper concerns the design of two novel measurement set-ups for the determination of parameters fundamental to the single module functioning and the validation of its analytical model. In particular, the test benches are designed to collect the friction forces exchanged between the device rotor and the object moving on top of it, simulating a normal working condition of the surface. The first set-up is specifically dedicated to identify the friction coefficients in the two main directions of the rotor, i.e. along the axis of rotation and in the perpendicular direction. While the second set-up is focused on the validation of the analytical model, thanks to the simultaneous measurement of the two in-plane friction forces caused by the object moving in different directions with respect to the rotor axis. The article describes the operating principles of the test benches and the analytical models for interpreting the data. In addition, some results concerning friction coefficients are introduced. These verify the basic operating assumptions and therefore evidence the module functioning and the quality of the novel test benches, opening their use also for similar transport devices.","PeriodicalId":46357,"journal":{"name":"Advances in Science and Technology-Research Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135834009","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}

引用次数: 0

Development of Quality Assurance System in the Automotive Industry 汽车工业质量保证体系的发展

Advances in Science and Technology-Research Journal Pub Date : 2023-10-02 DOI: 10.4028/p-rci2na

Lucas S. Gonçalves, Raul D.S.G. Campilho, Chander Prakash

{"title":"Development of Quality Assurance System in the Automotive Industry","authors":"Lucas S. Gonçalves, Raul D.S.G. Campilho, Chander Prakash","doi":"10.4028/p-rci2na","DOIUrl":"https://doi.org/10.4028/p-rci2na","url":null,"abstract":"The Automotive Industry is in constant evolution, thanks in part to its high level of production and customer demands for quality assurance. New processes, equipment and products are constantly emerging, leading to new vehicles launched to the public. These processes and equipment need adequate monitoring tools and forms of quality assurance, and it is the responsibility of the engineering department to look for economically viable and efficient ways of guaranteeing the quality of products in an industry where quality itself is considered one of its pillars. This work aims to develop and validate a solution for quality control in the automotive industry while taking full advantage of the technological factors provided by the equipment used. It deals with researching and applying a three-dimensions (3D) scanner in product quality monitoring tasks of a door panel manufacturing process. Pilot studies were carried out to assess the real capabilities of the equipment and determine problems that could arise when scaling the process for a real production of car door panels. The implementation and final results are also described in this work, showing that it is possible to develop a flexible equipment with multiple applications and apply it in the automotive industry.","PeriodicalId":46357,"journal":{"name":"Advances in Science and Technology-Research Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135834230","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}

引用次数: 0

Simulation-Assisted Analysis of Sand Casting Distribution Systems for Teaching Purposes 教学用砂型铸造配流系统仿真分析

Advances in Science and Technology-Research Journal Pub Date : 2023-10-02 DOI: 10.4028/p-lec90z

Alejandro Sambruno, Pablo Márquez, Fermín Bañón-García, Francisco Javier Puerta-Morales, Álvaro Gómez-Parra

{"title":"Simulation-Assisted Analysis of Sand Casting Distribution Systems for Teaching Purposes","authors":"Alejandro Sambruno, Pablo Márquez, Fermín Bañón-García, Francisco Javier Puerta-Morales, Álvaro Gómez-Parra","doi":"10.4028/p-lec90z","DOIUrl":"https://doi.org/10.4028/p-lec90z","url":null,"abstract":"In Engineering Schools, labs for teaching forming processes by means of material conservation methods are generally equipped with the appropriate equipment and tools to exemplify the theory received in class. However, the use of simulation techniques to complement the formation is not usually widely extended, since their learning is not usually trivial.One of the material conservation forming processes is sand casting. This process is of great educational significance, since the theory that defines it sets the basis for understanding other related moulding processes. In this context, the use of simulations of the moulding process allows the visualization of practical examples, helping to explain more clearly the theoretical information explained in class.Therefore, in this research a simulation assisted analysis has been developed using the Inspire Cast by Altair software, of teaching parts made in sand casting. First of all, students have been shown by means of simulations, the defects that can be originated in a part manufactured by sand casting. The study has been carried out by redesigning the risers involved in the distribution system of the process, by means of the Chvorinov's rule.Finally, a series of conclusions have been achieved, among which the following one stands out: if the functional performance of the part manufactured by sand casting is to be taken into account, the cooling modulus criterion must be selected for the design of the riser. Although, in principle, the material required for moulding is much larger, the defects generated in the part will be considerably reduced.","PeriodicalId":46357,"journal":{"name":"Advances in Science and Technology-Research Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135834237","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}

引用次数: 0