scholarly journals Proposal for the flow of material and adjustments to the storage system of an external service provider

2021 ◽  
Vol 11 (1) ◽  
pp. 948-955
Author(s):  
Jan Strohmandl ◽  
Blanka Kalupová ◽  
Kateřina Rejzková ◽  
Miroslav Tomek
Keyword(s):  
Automotive Industry ◽  
Material Flow ◽  
Assembly Line ◽  
Storage System ◽  
Manufacturing Companies ◽  
Assembly Lines ◽  
Automated Assembly ◽  
Whole Process ◽  
Current State ◽  
And Storage

Abstract This article deals with issues related to the flow of material to the assembly line and examines the possibilities of reducing the costs of this process. It is based on the current state of the transport of individual parts to the producing company and the storage system using Kanban and Just in Sequence (JIS) logistics technologies, and the subsequent collection of material for transport to the assembly line. The change in the system of transport technology has led to a reduction of the total storage space and costs, and at the same time, the processes related to storage and collection of parts have been simplified. The whole process of material flow to the assembly line is solved using the real supply system via the JIS technology, together with the system of receipt and storage of components in connection with individual operations during the handling and storage of these components, and their picking and transport to the assembly line. Evidently, the change in the system and the associated savings can also be employed to warehouses and manufacturing companies of the automotive industry, which use automated assembly lines with the timing of the assembly process of the final product.

Evaluation of System Reconfigurability Based on Usable Excess

2014 ◽  
Author(s):  
Jeffrey D. Allen ◽  
Jason D. Watson ◽  
Christopher A. Mattson ◽  
Scott M. Ferguson
Keyword(s):  
Communication Systems ◽  
Assembly Line ◽  
Assembly Lines ◽  
Automated Assembly ◽  
Complex Engineered Systems ◽  
Future Needs ◽  
Key Factor ◽  
Long Time ◽  
Engineered Systems ◽  
Over Time

The challenge of designing complex engineered systems with long service lives can be daunting. As customer needs change over time, such systems must evolve to meet these needs. This paper presents a method for evaluating the reconfigurability of systems to meet future needs. Specifically we show that excess capability is a key factor in evaluating the reconfigurability of a system to a particular need, and that the overall system reconfigurability is a function of the system’s reconfigurability to all future needs combined. There are many examples of complex engineered systems; for example, aircraft, ships, communication systems, spacecraft and automated assembly lines. These systems cost millions of dollars to design and millions to replicate. They often need to stay in service for a long time. However, this is often limited by an inability to adapt to meet future needs. Using an automated assembly line as an example, we show that system reconfigurability can be modeled as a function of usable excess capability.

scholarly journals Increasing The Efficiency of The Cub Engine Assembly Lines In The Automotive Industry Using Ranked Positional Weight

2018 ◽  
Vol 218 ◽  
pp. 04028
Author(s):  
Inaki Maulida Hakim ◽  
Syarafi Auzan Mu’min ◽  
Rolina Oktapiani Zaqiah
Keyword(s):  
Production Process ◽  
Automotive Industry ◽  
Manufacturing Industry ◽  
Assembly Line ◽  
Consumer Demand ◽  
Assembly Lines ◽  
Production Flow ◽  
Subsequent Increase ◽  
The Right ◽  
Positional Weight

In this modern era, the competition among the manufacturing industry, especially in the automotive sector will become increasingly tight which causes companies need to innovate so that satisfaction of the consumer can be maintained. The production process will be an important aspect in the automotive industry to maintain the quality of products and ensure consumer demand can be fulfilled. The problems that often occur in the production process is in the form of production flow constraints caused by workload unbalanced in the assembly lines. The imbalance causes the assembly lines do not run in a cycle time that is determined, so that consumer demand can not be meet in the right amount and companies need to spend more to mitigate them. Therefore, this study was conducted to balance workload on the assembly line by using line balancing form Ranked Positional Weight (RPW) with a subsequent increase in the efficiency and productivity of assembly line that affect production process runs without any contraints.

scholarly journals OEE measurement at the automotive semi-automatic assembly lines

2021 ◽  
Author(s):  
Peter Dobra ◽  
János Jósvai
Keyword(s):  
Literature Review ◽  
Automotive Industry ◽  
Performance Indicators ◽  
Key Performance Indicators ◽  
Automatic Assembly ◽  
Manufacturing Companies ◽  
Assembly Lines ◽  
Performance Quality

Manufacturing companies continuously evaluate their achieved performance based on different Key Performance Indicators (KPI). This article gives an overview about the OEE values. The study aims to provide practical OEE data of semi-automatic assembly lines used in the automotive industry. Its novelty is the revealed relationship between seat assembly lines and seat subassembly lines. Firstly, a literature review shows the scientific relevance and several cases are collected to increase OEE percentage. Secondly, the connection between chassis, tracks, recliner and mechanism assembly lines is described. Each part of OEE (availability, performance, quality) are analysed in terms of their impact.

Automatisierte digitale Anlagenplanung*/Automated digital facility design - Method for automated assembly line planning

2017 ◽  
Vol 107 (09) ◽  
pp. 582-589
Author(s):  
J. Michniewicz ◽  
D. Leiber ◽  
F. Riedl ◽  
H. Erdogan ◽  
M. Hörmann ◽  
...  
Keyword(s):  
Assembly Line ◽  
Design Method ◽  
Life Cycles ◽  
Assembly Lines ◽  
Automated Assembly ◽  
Product Model ◽  
Line Planning ◽  
Digital Product ◽  
Planning Decisions ◽  
Planning Approach

In der Produktion technischer Erzeugnisse sind Montageanlagen heute weit verbreitet. Durch immer kürzer werdende Produktlebenszyklen und die zunehmende Variantenvielfalt steigt auch die Zahl der durchzuführenden Anlagen(um)planungen. Vorgestellt wird ein Konzept, um automatisiert Entwürfe für Montageanlagen zu generieren. Auswahl und Anordnung der benötigten Betriebsmittel erfolgen dabei ausgehend von einem digitalen Modell des Produktes sowie einer Bibliothek verfügbarer Ressourcen. Die getroffenen Planungsentscheidungen werden simulativ abgesichert und heuristisch optimiert.   Nowadays, assembly lines are widely used for the production of goods. Due to shorter life cycles and increasing variance of products to be manufactured, assembly systems have to be (re)configured more frequently. This paper presents a concept to automatically generate drafts of complete assembly lines. Basis for the planning approach is a library of available resources and a digital product model. An algorithm selects, combines and arranges suitable resources. The planning decisions are heuristically optimized and verified by simulation.

scholarly journals Material Flow Improvement in Automated Assembly Lines Using Lean Logistics

2011 ◽  
pp. 0253-0254
Author(s):  
Vladimir Bulej ◽  
Gabriela-Veronica Stoianovici ◽  
Viera Poppeova
Keyword(s):  
Material Flow ◽  
Assembly Lines ◽  
Automated Assembly ◽  
Lean Logistics ◽  
Flow Improvement

Minimizing Geometric Variation in Multistage Assembly Lines by Geometrical Decoupling

2011 ◽  
Author(s):  
Peter Edholm ◽  
Lars Lindkvist ◽  
Rikard So¨derberg
Keyword(s):  
Assembly Line ◽  
Manufacturing Companies ◽  
Assembly Lines ◽  
Root Cause ◽  
Geometrical Quality ◽  
Geometrical Variation ◽  
Definition Of ◽  
Geometric Variation ◽  
Sheet Metal Assembly

Geometrical part robustness is used today as an engineering criterion in many manufacturing companies. The goal is to minimize the effect of geometrical variation by optimizing the locating schemes for the parts. Several methods and tools now exist to support geometrical robustness optimization for parts, but also for assemblies. In this paper the focus is on geometrical decoupling, which is one parameter of geometrical robustness of the different locating strategies in a complete assembly line. A goodness value is proposed that describes the level of geometrical couplings in a complete assembly line together with the part robustness value. By calculating this goodness value it is possible to predict the geometrical sensitivity of a complete assembly line as well as predicting the risk of geometrical variation in the final product. To illustrate the definition of this goodness value, and also the purpose of calculating it, a case study is used where a part of a sheet metal assembly line is described. Several different scenarios (assembly concepts) are applied to clarify the meaning and to validate this definition of the goodness value. The case study shows that the goodness value gives a good indication of the level of geometrical couplings within the assembly line and that this value can be used to evaluate different assembly concepts, with their locating concepts, against each other. The goal is to have a more robust and also geometrically decoupled assembly line which enables root-cause analysis in production, and also optimizes the geometrical quality minimizing the effect of geometrical variation of the final product from the plant.

scholarly journals Using noisy RFID for accurately monitoring the assembly line of panel fabrication

2017 ◽  
Author(s):  
Y. Wen ◽  
D. Ogunyemi ◽  
A. S. Bouferguene ◽  
M. S. Altaf ◽  
A. Bouferguene ◽  
...  
Keyword(s):  
Automotive Industry ◽  
Assembly Line ◽  
Production Systems ◽  
Waiting Times ◽  
Commercial Buildings ◽  
Project Delivery ◽  
Assembly Lines ◽  
Serial Production ◽  
Intermediate Products ◽  
The Past

Over the past few years, the interest towards off-site construction as part of project delivery for residential and commercial buildings has increased dramatically. In this regard, buildings are decomposed into panels that are manufactured using assembly lines smilar to what was developped to the automotive industry. However, because these serial production systems do not have buffers that could store intermediate products when a bottleneck occurs downstream, it often happens that these products are required to wait at the current workstation before production can resume. In this contribution, we develop algorithms allowing the waiting times to be extracted from timestamps that are collected from an RFID system reading the tags on panels as they enter each workstation.

Development and Applications of the SCARA Robot

2014 ◽  
Vol 26 (2) ◽  
pp. 127-133 ◽  
Author(s):  
Yasunori Yamazaki ◽  
Keyword(s):  
Assembly Line ◽  
Cost Effective ◽  
Ease Of Use ◽  
Assembly Lines ◽  
Automated Assembly ◽  
Precision Engineering ◽  
Manual Assembly ◽  
Scara Robot ◽  
Assembly Work ◽  
Simultaneous Control

In the 1980s, when the author worked for Seiko Epson Corporation as a wristwatch production engineer, consumer needs had become so diversified that wristwatches had to be assembled on the same automated assembly line in small lots of about 10,000 pieces per month. Most of the robots available in those days were for processing purposes such as spot welding and were not applicable in practical terms to automated assembly lines for wristwatches in precision, speed, ease of use or cost. The prototype SCARA robot developed by the SCARA Study Group led by Dr. Hiroshi Makino, a professor at the Department of Precision Engineering at Yamanashi University, was found to be the most suitable for automated watch assembly lines. We reviewed assembly work procedures and succeeded in limiting the number of simultaneous control axes to four at a maximum and in cutting assembly costs to 60% of those of conventional processing robots. As the term “selective compliance” suggests, SCARA robots possess all of the functions necessary for stable assembly and for precision and speed. Development team members, including the author, made the most use of previous experience in developing dedicated automated assembly machines for in-house use and succeeded in developing practical SCARA robots by creating a robot language based on workers’ voice. In applications of SCARA robots, this paper introduces just two of many possible examples. One is for oiling work on manual assembly lines and the other is the TAF-M mixed-models wristwatch assembly line. In the oiling work application example, SCARA robots used for infinitesimal oiling work on a manual assembly line for small lots of luxury wristwatches have been found to be very cost-effective and useful for training operators and/or programmers for robots. The TAFM application example represents the assembly line built based on the original Seiko-Epson purpose for introducing SCARA robot development, which consists of both robots and of 52 newly developed “assembly robot cells” where most assembly work should be done. An assembly robot cell includes a SCARA robot, a main conveyor, a multiple-parts feeder, an automatic hand changer, an assembly detection unit, etc. At present, one such assembly line automatically assembles more than 100 models of wristwatches. Use of such automated assembly lines has reduced the human workforce by about 40 workers, cut costs by over 60%, and shortened delivery time by about 50%.

Bottleneck Mitigation of Assembly Lines with Memetic Algorithms

2013 ◽  
Vol 655-657 ◽  
pp. 1631-1635
Author(s):  
Wen Ping Liu ◽  
Meng Wang ◽  
Zhen Jie Zhu
Keyword(s):  
Material Flow ◽  
Assembly Line ◽  
Memetic Algorithm ◽  
Memetic Algorithms ◽  
Assembly Lines ◽  
Smoothness Index

Bottlenecks heavily affect the material flow and workloads of assembly lines, and eventually constrain the productivity. The most economic way to eliminate or mitigate bottlenecks of a specific assembly line is to smooth the workloads at different stations towards a balanced system. This paper formulates a smoothness index, by which to measure the uniformity of workloads at serially located stations. To minimize the smoothness index, a Memetic algorithm is adopted and coding/decoding methods of the algorithm are devised. The effectiveness of the proposed algorithm is validated by a comparison with computing results of Package Lingo 11.0.

Challenges to Foster Resilience

2018 ◽  
Vol 5 (2) ◽  
pp. 80
Author(s):  
Tania Maritza Díaz Macías ◽  
Leila María Álava Barreiro ◽  
Diana Stefani Velásquez García
Keyword(s):  
Inclusive Education ◽  
Inclusive Development ◽  
Educational Policies ◽  
Process Of Change ◽  
Higher Education System ◽  
Whole Process ◽  
Current State ◽  
The University ◽  
Conceptual Evolution ◽  
Scientific Pedagogical

The work aims to provoke critical educational reflections on the current state of the scientific-pedagogical conception of inclusive education in the university context. In this sense, we are aware of the existence of an extremely positive conceptual evolution in recent times. It is necessary to articulate new discourses and teaching practices that project and illuminate the idea that inclusive education as a permanent process of change in education and for which the development of psychological activities outlined in resilience can play an important role. The Ecuadorian higher education system has experienced, for a few years, changes of great pedagogical interest. In this framework, a whole process of generating educational policies and inclusive education is shown, taking as a framework the professors and managers of the Technical University of Manabí (UTM) (Ecuador), to contribute to the greater inclusive development of the said university. The main challenges for university institutions regarding fostering the resilience of the academic process are presented.

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