Near Minimum Material Zone: A New Concept to Reduce the Weight of the Aircraft Components in Machining Using Lean Six Sigma Methodology

2013 ◽  
Author(s):  
Ganesh Kumar Nithyanandam ◽  
Matthew Franchetti ◽  
Radhakrishnan Pezhinkattil
Keyword(s):  
Six Sigma ◽  
Lean Six Sigma ◽  
Cnc Machine ◽  
Machining Processes ◽  
High Importance ◽  
Process Capability Analysis ◽  
Sigma Level ◽  
Capability Analysis ◽  
Six Sigma Methodology ◽  
Cause And Effect Diagram

A component in machining is accepted when the dimensions are within the tolerance specifications. In aircraft components machining, controlling the weight of the components is of high importance. In this paper, a new concept called near minimum material zone was introduced, which would address the control of the weight of the aircraft components in machining. To prove this concept, two sets of experiments with 20 samples were conducted using Deckel Maho CTX310 ECO VI CNC machine. The first experiment was conducted with normal machining processes. The second experiment was conducted using a new concept. Lean Six Sigma DMAIC methodology was adopted for this study. Several Six Sigma tools such as process capability analysis (Cp, Cpk), cause and effect diagram, X Hi/Lo and R-charts, etc. were used. The paper suggests that this new concept not only helped to control the weight of the aircraft components but also improved the desired quality by minimizing the dispersion of the component dimensions to obtain higher sigma level.

Enhancement of Pass Percentage through Lean Six Sigma Approach in Degree Level Technical Educational Institutions

2018 ◽  
Vol 39 ◽  
pp. 191-201
Author(s):  
S. Nallusamy ◽  
Gunji Venkata Punna Rao
Keyword(s):  
Six Sigma ◽  
Fish Bone ◽  
Lean Six Sigma ◽  
Educational Institutions ◽  
Technical Institute ◽  
Effect Analysis ◽  
Process Capability Analysis ◽  
Capability Analysis ◽  
Six Sigma Approach ◽  
Degree Level

The objective of this research is to improve the overall result and pass percentage of students in degree level technical institutions by eliminating the failure causes using lean six sigma method. A case study was carried out in a degree level technical institute, which has a total intake of 720 students producing 54% of results for the past five years. Taking as a challenge issues to produce more than 75% of results, it was considered to carry out a study using lean six sigma approach. In this research five stage methodology of six sigma i.e. DMAIC have been used to reduce the parameters that affect the system. Failure mode effect analysis, histogram, process capability analysis and fish bone diagram methodologies were also adopted to analyze the depth of the issue and to identify the critical factors that requires to be controlled and to improve by implementing the solutions and remarks received from the stakeholders. From the results it was found that, through this approach the pass percentage level of the technical institute had increased from 54% to 75% by identifying and reducing the appropriate source of failures.

Measure and Analyze the Problems of Concrete Mixture Production via Six Sigma DMAIC Tools: Central Concrete Mix Plant as a Case Study

2012 ◽  
Vol 622-623 ◽  
pp. 472-477
Author(s):  
Ali A. Karakhan ◽  
Angham E. Alsaffar
Keyword(s):  
Six Sigma ◽  
Business Strategy ◽  
Concrete Mixture ◽  
Statistical Tools ◽  
Sigma Level ◽  
Defect Rate ◽  
Concrete Production ◽  
Concrete Mix ◽  
Six Sigma Methodology

The aims of this study are to measure the defect rate and analyze the problems of production of ready concrete mixture plant by using Six Sigma methodology which is a business strategy for operations improvement depending basically on the application of its sub-methodology DMAIC improvement cycle and the basic statistical tools where the process sigma level of concrete production in the case study was 2.41 σ.

scholarly journals ANALISIS KECACATAN KEMASAN PRODUK OKKY JELLY DRINK PERISA BLACKCURRANT SEBAGAI UPAYA PERBAIKAN KUALITAS DENGAN METODE DMAIC PADA PT. TRITEGUH MANUNGGAL SEJATI

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Suharto Suharto ◽  
Keyword(s):  
Quality Control ◽  
Production Process ◽  
Six Sigma ◽  
Cause And Effect ◽  
Sigma Level ◽  
Quality Control Tool ◽  
And Control ◽  
Cause And Effect Diagram ◽  
Control Tool

Abstract This study aims to determine and identify the causes of defects in the production process of PT. Triteguh Manunggal Sejati and know the level of sigma level. This research uses the six sigma method with the DMAIC approach as a quality control tool, which includes the Define, Measure, Analyze, Improve and Control stages. Based on this study the results obtained are the level of sigma level at PT.Triteguh Manunggal Sejati is 4.96, which means that in the stage of sigma level the company has not reached the level of six sigma levels because in the production process at PT.Triteguh Manunggal Sejati still has product defects in the production process not yet achieved zero defect. The causes of product defects are based on cause and effect diagrams namely lid / seal defects are leaky lid, broken lid, and tilted lid. Kata kunci : Defect, Six Sigma, DMAIC, cause and effect diagram

How Project Management Overlaps with Lean Six Sigma

2018 ◽  
Vol 6 (2) ◽  
pp. 39-55 ◽  
Author(s):  
Brian J. Galli
Keyword(s):  
Project Management ◽  
Six Sigma ◽  
Vital Role ◽  
Lean Six Sigma ◽  
Successful Implementation ◽  
Customer Requirements ◽  
Project Outcomes ◽  
Management Concepts ◽  
Management Perspective ◽  
Six Sigma Methodology

This article seeks to discuss how project management can help the Lean Six Sigma methodology impact project outcomes. It is found that projects managers play a vital role in the successful implementation of the LSS tools and on meeting customer requirements. This article analyzes and identifies the factors and constraints that projects face with the implementation of Lean Six Sigma methodology within the project management perspective. Further, this study provides a comparative analysis of different studies based on LSS tools and analyzes their applicability in different industries. This study found that there is a strong need for project management concepts and tools in the LSS methodology and vice versa. The article also identifies specific concepts and tools of project management that can help to improve the likelihood of success of LSS projects and initiatives. This article discusses how these project specific concepts and tools can be effectively used in LSS environments.

Environmental Performance as Key Performance Indicators in the Lean Six-Sigma Methodology

2012 ◽  
Vol 488-489 ◽  
pp. 1082-1086 ◽  
Author(s):  
Pregiwati Pusporini ◽  
Kazem Abhary ◽  
Lee H.S. Luong
Keyword(s):  
Product Quality ◽  
Continuous Improvement ◽  
Performance Indicators ◽  
Six Sigma ◽  
Environmental Performance ◽  
Key Performance Indicators ◽  
Lean Six Sigma ◽  
New Paradigm ◽  
Quality Cost ◽  
Six Sigma Methodology

Lean six-sigma methodology focuses on continuous improvement approach with an emphasis on improving the product quality and reducing waste. Recent studies of lean six-sigma methodology indicated that this methodology commonly focus on four areas of performance namely quality, cost time and service. In this paper, an environmental performance is proposed into lean six-sigma methodology. An environmental performance needs to be integrated into lean six-sigma as a new paradigm of lean six-sigma methodology to achieve overall competitiveness of product.

scholarly journals Utilizing Lean Six Sigma Methodology to Improve the Authored Works Command Approval Process at Naval Medical Center San Diego

2018 ◽  
Vol 183 (9-10) ◽  
pp. e405-e410 ◽  
Author(s):  
Michelle M Valdez ◽  
Maureen Liwanag ◽  
Charles Mount ◽  
Rechell Rodriguez ◽  
Elisea Avalos-Reyes ◽  
...  
Keyword(s):  
Six Sigma ◽  
San Diego ◽  
Medical Center ◽  
Lean Six Sigma ◽  
Approval Process ◽  
Six Sigma Methodology
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