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Automated Design of Honeycomb Conformal Cooling Channels for Improving Injection Molding Quality 提高注塑质量的蜂窝状共形冷却通道的自动化设计
IF 2.3 Q2 Engineering Pub Date : 2023-02-15 DOI: 10.30657/pea.2023.29.7
Yuan-Ping Luh, Chien-Chuan Chin, H. Iao
Abstract The study of conformal cooling channel usually has adopted two assumptions in model design: the use of (1) a hot runner system and (2) a one-mold-one-cavity design. These assumptions substantially simplify the research. However, most molds are designed using a cold runner system and multiple cavities. These two assumptions may not apply to all commercial systems; hence, a design method for honeycomb CCCs for cold runner systems and multiple cavities is proposed in this study. Specifically, an algorithm was developed to automatically design CCCs for such systems. This algorithm can be used to reduce the cooling time, improve product quality, and ensure that the system temperature is relatively homogenous in practical situations. According to the result of this study, the honeycomb CCC models were more effective at maintaining a homogeneous temperature distribution, reducing shrinkage, and reducing warpage for both parts produced from the same two-cavity mold, thus ensuring consistent part quality.
摘要保形冷却通道的研究在模型设计中通常采用两个假设:(1)热流道系统和(2)一模一腔设计。这些假设大大简化了研究。然而,大多数模具都是使用冷流道系统和多个型腔设计的。这两个假设可能不适用于所有商业系统;因此,本研究提出了一种用于冷流道系统和多腔蜂窝式CCCs的设计方法。具体而言,开发了一种算法来自动设计此类系统的CC。该算法可用于减少冷却时间,提高产品质量,并在实际情况下确保系统温度相对均匀。根据这项研究的结果,蜂窝CCC模型在保持均匀的温度分布、减少收缩和减少由同一双腔模具生产的两个零件的翘曲方面更有效,从而确保了一致的零件质量。
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引用次数: 2
Concept of an innovative technological line for the processing of linear profiles 线性型材加工创新技术线的概念
IF 2.3 Q2 Engineering Pub Date : 2023-02-15 DOI: 10.30657/pea.2023.29.2
Tomasz Gustowski, Waldemar Kurek, R. Grzejda
Abstract The paper presents the concept of an innovative technological line intended for the processing of long linear profiles used in engineering steel and aluminium structures, which can be both hollow and open section profiles. The line is set up with seven main sections: profile loading system, input roller conveyor, plasma arc cutting section, circular saw cutting section, robot welding section, output roller conveyor and profile packaging system. The assumptions adopted to create the concept of the technological line were specified. A block diagram of the line and drawings showing the structure of its selected elements were depicted. The features of the technological line documenting its product and process innovativeness were indicated. The proposed technological line is built in the AGICO Group company, but it can also be successfully implemented in other companies dealing with the processing of long linear profiles.
摘要本文提出了一条创新技术线的概念,该技术线旨在加工工程钢和铝结构中使用的长线性型材,既可以是空心型材,也可以是开口型材。该生产线由七个主要部分组成:型材装载系统、输入辊道输送机、等离子弧切割部分、圆锯切割部分、机器人焊接部分、输出辊道输送机和型材包装系统。具体说明了创建技术路线概念所采用的假设。描绘了该线路的框图和显示其所选元件结构的图纸。指出了记录其产品和工艺创新性的技术路线的特点。拟议的技术路线是在AGICO集团公司建立的,但也可以在其他处理长线性型材的公司成功实施。
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引用次数: 2
Supporting of manufacturer’s demand plans as an element of logistics coordination in the distribution network 支持制造商的需求计划,作为分销网络中物流协调的一个要素
IF 2.3 Q2 Engineering Pub Date : 2023-02-15 DOI: 10.30657/pea.2023.29.9
Mariusz Kmiecik
Abstract The paper deals with the concept of centralized demand forecasting and logistical coordination in distribution networks. The aim of the paper is to relate the results provided by the forecasting tools to the basic aspects of logistical coordination. The case of 29 distribution networks in which a logistics operator (3PL) operates and provides contract logistics services to a manufacturing company is analysed. The paper partially confirms the hypothesis of better testability of forecasts based on machine learning algorithms and artificial neural networks for demand planning by the logistics operator to the manufacturer in the framework of logistics coordination in the distribution network. These algorithms perform better for networks with high specificity of flows and food networks. Traditional algorithms, on the other hand, have their better share in creating forecasts for more standard distribution networks. Additionally, the second hypothesis regarding the positive influence of modern technological solutions (such as the use of cloud technologies, EDI and flow tracking standards) was confirmed. Additionally, a number of factors that did not have a direct impact on forecasting errors were detailed.
摘要本文讨论了配电网集中需求预测和物流协调的概念。本文的目的是将预测工具提供的结果与后勤协调的基本方面联系起来。29个分销网络的情况下,物流运营商(3PL)经营和提供合同物流服务的制造公司进行了分析。本文部分证实了基于机器学习算法和人工神经网络的预测在配送网络物流协调框架下对物流运营商对制造商的需求规划具有更好的可测试性的假设。这些算法在流量和食物网络具有高特异性的网络中表现更好。另一方面,传统算法在为更标准的配电网络创建预测方面占有更大的份额。此外,关于现代技术解决方案(如使用云技术、EDI和流量跟踪标准)的积极影响的第二个假设得到了证实。此外,还详细介绍了一些对预测误差没有直接影响的因素。
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引用次数: 1
Properties of WC-Co coatings with Al2O3 addition 添加Al2O3的WC-Co涂层的性能
IF 2.3 Q2 Engineering Pub Date : 2023-02-15 DOI: 10.30657/pea.2023.29.11
N. Radek
Abstract Properties of WC-Co coatings with Al2O3 addition on the C45 mild steel surface in acidic chloride solution were examined. The WC-Co-Al2O3 coatings on steel surfaces were deposited by an electro-spark (ESD) technique. The anti-corrosion properties of the coatings were mainly investigated by electrochemical methods. Moreover, the scanning electron microscope (SEM) was employed for the observation of the surface of materials. The structure of coatings depended on the composition of electrospark electrodes. In the WC80-Co5-Al2O315 coating, the largest corrosion resistance was shown. The corrosion rate of the specimen was approximately eight times smaller than the coating without of Al2O3 addition. The aim of the research was to obtain, by adding alumina, an improvement in the functional properties of WC-Co coatings produced by the ESD method. Due to the original features of ESD coatings, they can be used in sliding friction pairs and as anti-wear coatings on cutting tools.
研究了在酸性氯化物溶液中,在C45低碳钢表面添加Al2O3的WC-Co涂层的性能。采用电火花(ESD)技术在钢表面沉积WC-Co-Al2O3涂层。主要采用电化学方法研究了涂层的防腐性能。此外,采用扫描电子显微镜(SEM)对材料表面进行了观察。涂层的结构取决于电火花电极的组成。在WC80-Co5-Al2O315涂层中,显示出最大的耐腐蚀性。试样的腐蚀速率大约是没有添加Al2O3的涂层的八倍。本研究的目的是通过添加氧化铝来改善ESD法生产的WC-Co涂层的功能性能。由于ESD涂层的原始特性,它们可以用于滑动摩擦副和刀具上的抗磨涂层。
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引用次数: 0
Organization Performance Composite Index Under Fuzziness: Application on Manufacturing Organization 模糊条件下的组织绩效综合指标在制造业组织中的应用
IF 2.3 Q2 Engineering Pub Date : 2023-02-15 DOI: 10.30657/pea.2023.29.3
Mohamed Ibrahim El Santty, H. Zaher, Naglaa Ragaa Saeid
Abstract Measuring the organization’s performance is essential for continuous improvement and operational excellence. Appropriate organizational measures include multiple dimensions. The relative importance of the multiple dimensions varies depending on the organization’s context and the management team’s visions. The vagueness and ambiguity in the management team’s perspective toward the dimensions and associated sub-indicators show fuzzy property. This paper aims to synthesize the overall organization performance in one aggregated index, engage the management team through index formulation, deal with ambiguity and vagueness in the management team perspective using fuzzy mathematics, and use the synthesized index in monitoring and controlling the organization’s performance to achieve operational excellence. The proposed approach is implemented in manufacturing organizations to prove practicality. The implementation of the proposed method shows a positive impact on the organization’s performance monitoring as the management team focused on one measure. Furthermore, it has engaged the management team in selecting and weighing the leading group and associated KPIs. The R programming and Minitab 19 are used in the collected data processing.
摘要衡量组织的绩效对于持续改进和卓越运营至关重要。适当的组织措施包括多个方面。多个维度的相对重要性取决于组织的背景和管理团队的愿景。管理团队对维度和相关子指标的观点的模糊性和歧义性表现出模糊性。本文旨在将组织的整体绩效综合在一个综合指标中,通过指标制定吸引管理团队,使用模糊数学处理管理团队视角下的模糊性和模糊性,并将综合指标用于监测和控制组织的绩效,以实现卓越运营。所提出的方法已在制造组织中实施,以证明其实用性。由于管理团队专注于一项措施,拟议方法的实施对组织的绩效监测产生了积极影响。此外,它还让管理团队参与领导小组和相关KPI的选择和权衡。在收集的数据处理中使用R编程和Minitab 19。
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引用次数: 0
A Review on Sustainable Value Creation Factors in Sustainable Manufacturing Systems 可持续制造系统中可持续价值创造因素研究综述
IF 2.3 Q2 Engineering Pub Date : 2022-10-21 DOI: 10.30657/pea.2022.28.42
N. L. P. Hariastuti, Lukmandono
Abstract This article describes in detail the elements of value creation through the transformations and flexibility, which is carried out in the implementation of sustainable manufacturing. The purpose of this study is to generate the criteria or elements that build the sustainable value creation process through a literature review analysis. The overall classification of sustainable manufacturing implementation discussed shows several essential factors that support this. The process of review studies on selected papers strengthens the classification carried out to obtain the necessary elements of sustainable value creation. The value created can later be a hallmark of the company's superiority to survive the market competition. Besides, the role of partnerships, such as collaboration indicates a positive influence in generating value creation to increasing the company's competitive rate. In addition, the importance of partnership processes such as collaboration and cooperation between stakeholders, is needed to generate value creation to increase the company's competitive level. The partnership process is one of the critical factors in creating sustainable value in achieving sustainable manufacturing in the future.
摘要本文详细描述了在实施可持续制造过程中,通过转型和灵活性创造价值的要素。本研究的目的是通过文献回顾分析来产生构建可持续价值创造过程的标准或要素。所讨论的可持续制造实施的总体分类显示了支持这一点的几个基本因素。对选定论文的审查研究过程加强了为获得可持续价值创造的必要要素而进行的分类。创造的价值可以成为公司在市场竞争中生存优势的标志。此外,合作等伙伴关系的作用表明,在创造价值方面对提高公司的竞争力具有积极的影响。此外,伙伴关系过程的重要性,如利益相关者之间的协作和合作,需要产生价值创造,以提高公司的竞争水平。伙伴关系过程是在未来实现可持续制造中创造可持续价值的关键因素之一。
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引用次数: 4
Advantages of colour etching in quality control of graphitic cast irons 彩色蚀刻在石墨铸铁质量控制中的优势
IF 2.3 Q2 Engineering Pub Date : 2022-10-21 DOI: 10.30657/pea.2022.28.40
A. Vaško
Abstract Graphitic cast irons are the most important and most widely used materials for the production of castings. Increasing requirements for the quality of these castings lead to increased demands on the control of foundry production from raw materials through technological operations to the finished product. An integral part of this control process is structural analysis, because the properties of graphitic cast irons depend mainly on their structure (on the shape, size and number of graphitic particles and on the character of a metal matrix in which graphite occurs). The paper deals with the structural analysis of graphitic cast irons using the classical black and white contrast, as well as the use of colour metallography, which enables to obtain additional information about the structure of cast iron. The article contains photographs of microstructures of graphitic cast irons, obtained using black and white etching, as well as colour etching. It deals with the advantages of colour etching compared to the use of classical black and white methods.
摘要石墨铸铁是生产铸件最重要、应用最广泛的材料。对这些铸件质量的要求越来越高,导致对铸造生产从原材料到技术操作到成品的控制要求也越来越高。这一控制过程的一个组成部分是结构分析,因为石墨铸铁的性能主要取决于它们的结构(石墨颗粒的形状、大小和数量,以及石墨所在金属基体的特性)。本文采用经典的黑白对比法对石墨铸铁进行了结构分析,并采用了彩色金相法,从而获得了有关铸铁结构的附加信息。这篇文章包含了石墨铸铁显微结构的照片,这些照片是用黑白蚀刻和彩色蚀刻获得的。它处理了彩色蚀刻与使用经典的黑白方法相比的优点。
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引用次数: 0
Multi-physical contact simulation in Vehicle applications 车辆应用中的多物理接触仿真
IF 2.3 Q2 Engineering Pub Date : 2022-10-21 DOI: 10.30657/pea.2022.28.45
M. Schmid, P. Tomek, P. Hanus
Abstract Multi-physical contact behaviour is important in multiple disciplines related to the automotive industry. Nowadays battery-electric vehicles' (BEV) thermal management systems deal with contact between bodies where mechanical, electric, and thermal interaction occurs. The battery thermal management itself is crucial for cell life, safety, and everyday vehicle performance. Thus, comprehensive and accurate simulation of the multi-physical contact is a vital part of vehicle development. The multi-physical contact is represented by two or more bodies under applied mechanical load and a current or heat conducted throughout the realized contact area. The amount of conducted current/heat or generated Joule heat is the function of the contact area as well as contact pressure, thus the structural simulation should be essential for such thermal management system simulations Most of the current full vehicle battery pack CFD cooling simulations simplified the multi-physical contact as ideal. Detailed contact modelling is time-consuming, hence not applicable for the full vehicle modelling. In this work, a feasible approach based on contact resistance curves was implemented. Furthermore, the work demonstrates the necessity of correct structural contact prediction for a joule heating and thermal solution.
摘要多物理接触行为在与汽车行业相关的多个学科中都很重要。如今,电池电动汽车(BEV)的热管理系统处理发生机械、电气和热相互作用的物体之间的接触。电池热管理本身对电池寿命、安全性和日常车辆性能至关重要。因此,全面准确地模拟多物理接触是车辆开发的重要组成部分。多物理接触由在施加的机械负载和在整个实现的接触区域传导的电流或热量下的两个或多个物体表示。传导电流/热量或产生的焦耳热是接触面积和接触压力的函数,因此结构模拟对于此类热管理系统模拟至关重要。目前大多数整车电池组CFD冷却模拟都将多物理接触简化为理想。详细的接触建模非常耗时,因此不适用于整车建模。在这项工作中,实现了一种基于接触电阻曲线的可行方法。此外,该工作证明了对焦耳加热和热解进行正确的结构接触预测的必要性。
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引用次数: 1
Mathematical modeling of the stress-strain state of the annular preventer seal using the theory of reinforced shells 应用加筋壳理论建立环形防喷器密封应力-应变状态的数学模型
IF 2.3 Q2 Engineering Pub Date : 2022-10-21 DOI: 10.30657/pea.2022.28.46
Jaroslav Grydzhuk, I. Chudyk, O. Slabyi, Yurii Mosora, Mariana Kovbaniuk, M. Krynke
Abstract Management of wells in the process of their construction is one of the important factors in ensuring the safety of the technological process. Blowout equipment, which includes annular preventers, is used to control the wells. This applies to the construction of oil and gas wells, or wells that provide degassing of coal seams to reduce their gas-dynamic activity. For the purpose of safe and long-term operation of annular preventers on the basis of the theory of thick-walled combined reinforced shells and the carried-out analytical research, the mathematical model for research of a stress-strain condition of a seal of an annular preventer has been offered. Taking into consideration the real design, the seal of the annular preventer is modeled by a rubber shell, reinforced in the circular direction by rubber frames, and in the longitudinal direction by metal stringers. The mathematical model provides for determining the stiffness, internal force factors and stresses in the longitudinal and transverse sections of the combined rubber-metal seal, considering the peculiarities of its operation. At the same time, the model includes the conditions of interaction of the rubber base of the seal with a pipe, as well as the action of sealing pressure under operating conditions. The use of the proposed mathematical model reduces the costs of experimental research and will contribute to ensuring the reliability of simulation modeling results. The advantage of the method is the determination of calculated loads at different points of the combined seal under the existing state of dangerous zones and the influence of operating conditions. In the meantime, prerequisites have been created for expanding the possibilities of simulation modeling and designing structural elements of annular preventers with increased operational characteristics. The practical value of the obtained results is determined by the possibility of using them to ensure the performance of the rubber-metal seal both at the stage of its design and during the operation.
摘要井在施工过程中的管理是保证工艺过程安全的重要因素之一。井喷设备包括环空防喷器,用于控制油井。这适用于油气井的建设,或提供煤层脱气以减少其气动力活动的井。为了保证环空防喷器的长期安全运行,在厚壁组合式强化壳理论的基础上,通过分析研究,提出了环空防喷器密封应力-应变状态研究的数学模型。考虑到实际设计,环形防喷器的密封采用橡胶外壳造型,圆形方向采用橡胶框架加固,纵向方向采用金属弦加固。考虑到橡胶-金属组合密封的工作特性,建立了计算橡胶-金属组合密封纵断面和横断面刚度、内力因子和应力的数学模型。同时,该模型还考虑了密封橡胶底座与管道的相互作用条件,以及工作条件下密封压力的作用。所提出的数学模型的使用降低了实验研究的成本,有助于保证仿真建模结果的可靠性。该方法的优点是在危险区域的存在状态和运行条件的影响下,确定组合密封各点的计算载荷。与此同时,为扩大模拟建模的可能性和设计具有更高操作特性的环空防喷器结构元件创造了先决条件。所得结果的实用价值取决于是否有可能使用这些结果来保证橡胶-金属密封在设计阶段和使用过程中的性能。
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引用次数: 0
Simulations in planning logistics processes as a tool of decision-making in manufacturing companies 作为制造企业决策工具的物流过程规划模拟
IF 2.3 Q2 Engineering Pub Date : 2022-10-21 DOI: 10.30657/pea.2022.28.38
M. Daroń
Abstract Appropriate logistics planning is a key factor influencing the quality and efficiency of processes in manufacturing companies. Logistics planning can be defined as the process of making significant decisions (concerning both logistics processes and resources) for the functioning of an organization. It is a process consisting of stages in which important decisions are made regarding the optimization of all activities of the company, including in the field of: production, supply, sales, distribution, transport. The main goal of logistics activities is to minimize the operating costs incurred, as well as to better manage human resources. The main aim of the article is to present the legitimacy of using selected simulation software as an actual tool in making logistic decisions in the field of order picking system (OPS) based on a case study. For research purposes, a model was prepared in FlexSim and there were applied S-shape and Return routing methods. Based on simulation results, an analysis of the selected process was carried out. The obtained results indicate possible directions of changes and allow to make the right decision in the field of planning logistics processes.
摘要合理的物流规划是影响制造企业流程质量和效率的关键因素。物流规划可以定义为为组织的运作做出重大决策(涉及物流过程和资源)的过程。这是一个由几个阶段组成的过程,在这些阶段中,重要的决策是关于公司所有活动的优化,包括在生产、供应、销售、分销和运输领域。物流活动的主要目标是尽量减少运营成本,以及更好地管理人力资源。本文的主要目的是在案例研究的基础上,提出在订单拣选系统(OPS)领域使用选定的仿真软件作为实际工具进行物流决策的合法性。为了研究目的,在FlexSim中建立了一个模型,并应用了s形和返回路由方法。根据仿真结果,对所选工艺进行了分析。所得结果表明了可能的变化方向,并允许在规划物流过程领域做出正确的决策。
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引用次数: 3
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Production Engineering Archives
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