Optimization on the Bottleneck Process of 63PF2 Conveying Chain Assembly

2011 ◽  
Vol 308-310 ◽  
pp. 734-738
Author(s):  
Ai Ying Meng
Keyword(s):  
Assembly Line ◽  
Flow Analysis ◽  
Assembly Process ◽  
Assembly Lines ◽  
Operation Analysis ◽  
Work Measurement ◽  
Analysis Process ◽  
Transmission Chain ◽  
Fishbone Diagram ◽  
Low Efficiency

Aiming at the problem of more difficult and low efficiency to assembly 63PF2 conveying chain, the work measurement, action research and production line balancing method are studied, and the data of 63PF2 conveying chain assembly lines is obtained. Taking 63PF2 conveying chain assembly lines for example and using industrial engineering foundation of stopwatch time study, two-handed operation analysis, process flow analysis and quality management of fishbone diagram, the problems existing in 63PF2 conveying chain assembly process are analyzed. And then the work site preliminary optimization is carried out. The bottleneck process of assembly process is optimized and improved. And the balance of assembly line is optimized, so as to improve the transmission chain assembly efficiency.

Variation Analysis for Compliant Assembly

2000 ◽  
Author(s):  
S. Jack Hu ◽  
Yufeng Long ◽  
Jaime Camelio
Keyword(s):  
Sheet Metal ◽  
Assembly Line ◽  
Assembly Process ◽  
Variation Analysis ◽  
Assembly Lines ◽  
Compliant Assembly ◽  
Single Station ◽  
Dimensional Variation ◽  
Sheet Metal Assembly

Abstract Assembly processes for compliant non-rigid parts are widely used in manufacturing automobiles, furniture, and electronic appliances. One of the major issues in the sheet metal assembly process is to control the dimensional variation of assemblies throughout the assembly line. This paper provides an overview of the recent development in variation analysis for compliant assembly. First, the unique characteristics of compliant assemblies are discussed. Then, various approaches to variation modeling for compliant assemblies are presented for single station and multi-station assembly lines. Finally, examples are given to demonstrate the applications of compliant assembly variation models.

Application of the Work Study to Balancing Hydraulic Component Assembly Lines

2012 ◽  
Vol 452-453 ◽  
pp. 206-210 ◽  
Author(s):  
Wen Li Li ◽  
Chun Lei Song ◽  
Li Sha Han
Keyword(s):  
Measurement Method ◽  
Assembly Line ◽  
Line Balancing ◽  
Work Study ◽  
Assembly Lines ◽  
Work Time ◽  
Work Content ◽  
Work Measurement ◽  
Bottle Neck ◽  
Component Assembly

This paper applies the methods of Work Study to a certain hydraulic component company. We apply the work measurement method to measure the work time of various stations of assembly lines, and to find out both the bottle neck stations and the superfluous capability stations effecting on the line assembly capability. Basing on the principle of ECRS (Eliminate, Combine, Rearrange, Simple) and the line balancing theory, this paper provides the line balancing schema, including the improvement of the existing equipment, the reallocation of the work content for relative stations, the adjustment of the equipment and workers of some stations, the reduction of machine working time of some stations and the change of assembly line layout etc. After being improved, the work time of the bottle neck and other processes are controlled near the Taking Time. Comparing with the former assembly line, the production capability of assembly line improved up 45.6% and workshop condition is also improved.

scholarly journals Development of a Manual Assembly Line for a 950kw Single Stroke Generator

2017 ◽  
Vol 1 (2) ◽  
pp. 214-221
Author(s):  
M. H. Oladeinde ◽  
R. O. Edokpia
Keyword(s):  
Measurement Technique ◽  
Assembly Line ◽  
Line Balancing ◽  
Assembly Process ◽  
Manual Assembly ◽  
Part List ◽  
Work Measurement ◽  
Stop Watch ◽  
Balancing Efficiency ◽  
Positional Weight

In this paper, a manual assembly line for the assembly of a 950KW gasoline generator has been designed. A part list of a purchased generator was generated after the machine was disassembled. Work measurement technique was used to generate an assembly process for the machine. The duration for assembly of each component was obtained using stop watch and then standardized. The cycle time of the manual assembly line was determined and subsequently, the distribution of load amongst the ten station line was balanced out using the ranked positional weight technique. Computations reveal that a fairly high labour efficiency of 0.804 is obtained. The line balancing efficiency obtained equal 0.849 implying a balance delay of 0.151.

scholarly journals Increased line efficiency by improved work methods with the ECRS concept in a washing machine production: a case study

2020 ◽  
Vol 4 (1) ◽  
pp. 13-29
Author(s):  
Asariella Findya Octa Pertiwi ◽  
Rahmaniyah Dwi Astuti
Keyword(s):  
Production Process ◽  
Production Line ◽  
Assembly Line ◽  
Line Balancing ◽  
Assembly Process ◽  
Assembly Lines ◽  
Washing Machine ◽  
Work Method ◽  
Machine Assembly

The Assembly line is the assembly process that is carried out based on the order of the production process in the production line. The problem that is often found in assembly lines is bottleneck conditions where some material piled up at the station. This situation indicates an imbalance in the production line. The improvement of the work method is one of the effective ways that can increase line efficiency. This study presents an increase in line efficiency by improving working methods in a washing machine assembly line of PT.X. The study aimed to increase the value of line efficiency by improving work methods. In this study, improvements were made using the line balancing method and Eliminate, Combine, Rearrange, Simplify (ECRS) concept. The results that have been done, the obtained value of line efficiency for washing machine products is 76.76%. This value has not reached the company's productivity target of 99.50%. Therefore it is necessary to improve the assembling line to increase the value of product production. The proposed improvements made with improvements to the work methods on the assembling line obtained 89.38% results is to increase the amount of line efficiency by improving work methods.

Contributions of a Formal Analysis Metaprocess to Breakthrough Failure Analysis Results

2003 ◽  
Author(s):  
Steve Ferrier ◽  
Kevin D. Martin ◽  
Donald Schulte
Keyword(s):  
Failure Analysis ◽  
Formal Analysis ◽  
Photon Emission ◽  
Flow Analysis ◽  
Formal Structure ◽  
Ic Design ◽  
Analysis Process ◽  
Secondary Failure ◽  
Leakage Failure ◽  
Wafer Manufacturing

Abstract Application of a formal Failure Analysis metaprocess to a stubborn yield loss problem provided a framework that ultimately facilitated a solution. Absence of results from conventional failure analysis techniques such as PEM (Photon Emission Microscopy) and liquid crystal microthermography frustrated early attempts to analyze this low-level supply leakage failure mode. Subsequently, a reorganized analysis team attacked the problem using a specific toplevel metaprocess.(1,a) Using the metaprocess, analysts generated a specific unique step-by-step analysis process in real time. Along the way, this approach encouraged the creative identification of secondary failure effects that provided repeated breakthroughs in the analysis flow. Analysis proceeded steadily toward the failure cause in spite of its character as a three-way interaction among factors in the IC design, mask generation, and wafer manufacturing processes. The metaprocess also provided the formal structure that, at the conclusion of the analysis, permitted a one-sheet summary of the failure's cause-effect relationships and the analysis flow leading to discovery of the anomaly. As with every application of this metaprocess, the resulting analysis flow simply represented an effective version of good failure analysis. The formal and flexible codification of the analysis decision-making process, however, provided several specific benefits, not least of which was the ability to proceed with high confidence that the problem could and would be solved. This paper describes the application of the metaprocess, and also the key measurements and causeeffect relationships in the analysis.

Research and Design of SWET Equipment for Engineering Machinery Company

2014 ◽  
Vol 971-973 ◽  
pp. 646-649
Author(s):  
Qing Song Zhao
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Work Environment ◽  
Simulation Training ◽  
Assembly Line ◽  
Training System ◽  
Assembly Lines ◽  
Structural Framework ◽  
Research And Design ◽  
Disassembly Line

The structural framework for the car’s assembly line simulation training system of the SWET(Simulated Work Environment Training) is designed overall, including two automatic car assembly lines and two manually run the disassembly line. The automatic control system of the car’s assembly line simulation training system is designed with the knowledge of electrical and electronic, SCM principles, counts the number of the car, automatically pause and open the line with alarm and automatic recovery control.

scholarly journals The multi-attribute topological graph method and its application on power flow analysis in closed planetary gear trains

2018 ◽  
Vol 10 (8) ◽  
pp. 168781401879410 ◽  
Author(s):  
Yahui Cui ◽  
Jing Gao ◽  
Xiaomin Ji ◽  
Xintao Zhou ◽  
Haitao Yan
Keyword(s):  
Power Flow ◽  
Flow Analysis ◽  
Planetary Gear ◽  
Topological Graph ◽  
Template Model ◽  
Power Flow Analysis ◽  
Analysis Process ◽  
Planetary Gear Trains ◽  
Graphical View ◽  
Gear Trains

The concept of multi-attribute topological graph is proposed in this article to represent the characteristics of both structure and state for typical one-degree-of-freedom planar spur closed planetary gear trains. This method is well applied in power flow analysis and provides a graphical view for the types, values, directions, and transmission relationship of power flow, especially for the recirculation power representation. Furthermore, a template model of multi-attribute topological graph for closed planetary gear trains is also presented, which would be helpful to the multi-attribute topological graph generation for some certain types of closed planetary gear trains just by changing symbols in the template model. A corresponding software is also developed to make the analysis process more convenient. By inputting different parameters, the different visual results can be obtained automatically, thus benefiting engineers in conceptual design.

scholarly journals Bucket Brigades to Increase Productivity in a Luxury Assembly Line

10.5772/56837 ◽  
2013 ◽  
Vol 5 ◽  
pp. 28 ◽  
Author(s):  
Filippo De Carlo ◽  
Orlando Borgia ◽  
Mario Tucci
Keyword(s):  
Assembly Line ◽  
Assembly Line Balancing ◽  
Assembly Lines ◽  
Manual Assembly ◽  
Increase Productivity ◽  
Assembly Line Balancing Problem ◽  
High Level ◽  
Simple Assembly ◽  
A Company ◽  
Bucket Brigades

One of the most challenging issues in manual assembly lines is to achieve the best balance of workloads. There are many analytic approaches to solve this problem, but they are often neglected, since they are time-consuming and require high level engineering skills. Fashion bags packaging lines must comply with a number of different products with low production volumes, while the organization of the line is often under the mere responsibility of the foreman, who balances workloads in an empirical way. The aim of this work is to evaluate the effectiveness of the arrangement of bucket brigades (BBs) for an assembly line of luxury handbags. To do this, it was decided to perform a testing activity in a company producing fashion handbags in order to compare the self-made design with the BBs and with a simple assembly line balancing problem algorithm. The originality of this research lies in the fact that there are no studies in the literature on BBs applied to the packaging of highly variable small batches. The results were excellent, showing the advantages of BBs in terms of flexibility, the reduction of work in the process and the ability to handle small anomalies.

scholarly journals Study on Importance of Employee Performance Assesment and Lost Productive Time Rate Determination in Garment Assembly Lines

2017 ◽  
Vol 25 (0) ◽  
pp. 119-126 ◽  
Author(s):  
Mahmut Kayar ◽  
Öykü Ceren Bulur
Keyword(s):  
Performance Assessment ◽  
Assembly Line ◽  
Employee Performance ◽  
Assembly Line Balancing ◽  
Line Balancing ◽  
Assembly Lines ◽  
Standard Time ◽  
Productive Time ◽  
Production Target

This study primarily includes theoretical information on the performance and lost productive time of a firm. Furthermore t-shirt sewing operations of a garment firm were analysed and time measurement for each operation was carried out by the time keeping method. By considering the measurements obtained, different performance estimations, the firm’s lost productive time rates, and the standard time was calculated within 5 different scenarios. According to each sewing standard time obtained, the assembly line balancing practice was carried out using the Hoffman method. Later on results of the assembly line balancing were compared, and the importance of employee performance assessment and its lost productive time rates for firms were discussed. The aim of the study was to emphasize the value of impeccable determination of the employee performance assessment and lost productive time rates. Consequently garment firms will be more cautious in calculating the standard time and will be able to reach their production target within the accurate measurement they obtain.

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.

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