scholarly journals Application of value stream mapping to enhance productivity by reducing manufacturing lead time in a manufacturing company: A case study

2021 ◽  
Vol 19 (1) ◽  
pp. 11-22
Author(s):  
Aditya S. Patil ◽  
Mahesh V. Pisal ◽  
Chandrakant T. Suryavanshi
Keyword(s):  
Lead Time ◽  
Value Stream Mapping ◽  
Value Stream ◽  
Lead Time Reduction ◽  
Current State ◽  
Future State ◽  
Short Lead Time ◽  
Time Gap ◽  
Value Stream Map

Lead time is a time gap between initiation and completion of the processes or product. The lead time directly affects productivity. Short lead time results in higher output thus add more value in a given period. Value stream map is an effective tool to describe the overall process from order to delivery. In this study, there is lead time reduction by generation current state and future state for a process using various techniques. Thus, the main aim of this work to enhance production by reduction of lead time. Finally, gain in production, reduction in lead time, and reduction in inventory between the stations are also reported.

Achieving Lean Warehousing Through Value Stream Mapping

2020 ◽  
Vol 9 (3) ◽  
pp. 387-401
Author(s):  
Abhishek P.G. ◽  
Maheshwar Pratap
Keyword(s):  
Lead Time ◽  
Value Stream Mapping ◽  
Lead Times ◽  
Value Stream ◽  
Current State ◽  
Future State ◽  
Lean Tools ◽  
Warehouse Operations ◽  
High Lead

This article applies value stream mapping (VSM) in a distribution warehouse after identifying and categorizing different warehousing wastes. The study suggests solutions for the reduction of each type of waste and employs lead time as the metric to understand the overall effectiveness of the suggested remedies. The distribution warehouse faced severe stock-out situations and high lead time for all deliveries. Current state and future state maps were utilized for mapping the current and revamped system, respectively. While existing studies on lean warehousing have utilized VSM to study a specific type of waste, this study extends it to include all types of warehousing waste, classifies them into seven types and provides a real case study along with evidence for improvement schemes for each category. This research, employing a case study, suggests an integrated lean warehousing method for design and operation of distribution warehouses. Dilemma/research question/purpose: Can the warehouse avoid stock-outs and decrease the lead time by identifying and reducing or eliminating the seven types of wastes in the warehouse operations? Theory: Lean management principle applied to a warehouse using value stream mapping to eliminate wastes. Type of the case: A problem-solving using lean tools carried out in a warehouse. Protagonist: Not needed. Options: Allow the current state to continue causing stock-outs and high lead times, or identify and reduce the wastes in the warehouse operations and avoid stock-outs, decrease lead times, and improve the overall efficiency of the warehouse. Discussions and case questions: Is it possible for the firm to go one step further than what the future state map has shown in the study? What other lean tools do you see fit to reduce or eliminate the types of waste outlined in this article?

scholarly journals Improving Quality Control Process Through Value Stream Mapping

2018 ◽  
Vol 7 (2.29) ◽  
pp. 219
Author(s):  
Zulfa Fitri Ikatrinasari ◽  
Dan Kosasih
Keyword(s):  
Quality Control ◽  
Lead Time ◽  
Value Added ◽  
Maximum Efficiency ◽  
Value Stream Mapping ◽  
Process Time ◽  
Value Stream ◽  
Current State ◽  
Future State ◽  
Quality Control Process

PT. AEMI is one of the growing electronic component manufacturing company. By this time, Kaizen project has been run and managed to become a culture in PT AEMI. However, the project has not integrated, comprehensive and not yet has a long-term goals. Implementation of value stream mapping (VSM) in PT AEMI is expected to make Kaizen projects more focused and to produce increasing of the maximum efficiency. In addition, VSM Kaizen is believed to make the those programs more integrated, effective and comprehensive. This study aims to: (1) create a current state mapping in the Department of Quality Control PT. AEMI, (2) identify wastes in the Department of Quality Control PT.AEMI, (3) create a future state mapping at the Department of Quality Control PT. AEMI, (4) make a plan of improvement and analyzing the application. Stages of the study were as follows: (1) identification of work processes, (2) collect and analysis of work process time, (3) analysis of the current state mapping, (4) calculate of lead time and process time, (5) analysis of value added and non value-added activities, (6) analysis of wastes, (7) make a plan of future state mapping, (8) improvement design (improvement planning), (9) implementation of improvement, (10) analysis of the implementation of improvements. The results of this study are: 1) current state mapping at QC Department shows that the total lead time of 848 minutes where there is non-value added activity of 778 minutes. 2) identify waste on the handling process where the product movement from assembly to QC for 2 minutes, movement transactions from assembly to QC for 479 minutes and the waiting time at  inspection area for 727 minutes. 3) future state mapping at QC Department shows that the total lead time of 516.5 minutes where there is non-value added activity of 446.5 minutes. 4) the improvement to do is to change the lay out where final inspection is moved from QC to manufacturing so as to result in reduce of non-value added activity by 46%. 

scholarly journals MEMINIMASI PEMBOROSAN DENGAN LEAN MANUFACTURING PADA PROSES PRODUKSI DI PT. IE

2021 ◽  
pp. 1451
Author(s):  
Ahmad Ahmad ◽  
Helena JK ◽  
Andrean Yonathan
Keyword(s):  
Waiting Time ◽  
Cycle Time ◽  
Lean Manufacturing ◽  
Lead Time ◽  
Fault Tree Analysis ◽  
Value Stream Mapping ◽  
Tree Analysis ◽  
Value Stream ◽  
Current State ◽  
Future State

PT. IE is engaged in the business of making Lighting and Lampposts. Based on observations and interviews, there are still some wastes that arise in the flow of the production process, among which there are still many wastes of waiting time, transportation, movement and inventory. These wastes cause the product completion time to be longer and the resulting quality decreases. To eliminate or reduce waste, it is necessary to apply Lean Manufacturing. Lean Manufacturing is a systematic approach to eliminating waste and changing processes by identifying and reducing waste with continuous improvement and striving to create a production flow along the value stream by eliminating all forms of waste and increasing the added value of products to customers. From the Pareto diagram, it is found that transportation waste has the highest percentage of 26.21%, waiting time is 21.38%, motion waste is 19.31% and waste inventories are 15.17%. while the results of the Value Stream Mapping Current State Map mapping obtained a production lead time of 7,680 seconds and a total cycle time of 6,660 seconds and a PCE Current State Map value of 53.09%. Identify the root causes of waste using Fishbone diagrams, 5 Why Analysis, 5W+1H, Fault Tree Analysis and FMEA. After corrective actions have been taken, based on the Value Stream Mapping Future mapping there is a decrease in production lead time to 5,220 seconds and a decrease in total cycle time to 4,860 seconds and an increase in PCE Future State Map to 68.10% so that there is an increase of 15.01% which shows The company's production process has become more Lean.PT. IE bergerak dalam bisnis pembuatan Lighting dan Tiang Lampu. Berdasarkan observasi dan wawancara, masih terdapat beberapa pemborosan (waste) yang timbul di aliran proses produksi di antaranya masih banyak terjadi pemborosan-pemborosan waktu tunggu, transportasi, gerakan dan inventori. Pemborosan-pemborosan tersebut menyebabkan waktu penyelesaian produk menjadi lebih lama dan kualitas yang dihasilkan menurun. Untuk menghilangkan atau mengurangi pemborosan diperlukan adanya penerapan Lean Manufacturing.Lean Manufacturing merupakan pendekatan sistematik untuk mengeliminasi pemborosan dan mengubah proses dengan cara mengidentifikasi dan mengurangi pemborosan dengan perbaikan kontinu dan berupaya untuk menciptakan aliran produksi sepanjang value stream dengan menghilangkan segala bentuk pemborosan serta meningkatkan nilai tambah produk kepada pelanggan. Dari diagram Pareto ditemukan waste transportasi memiliki persentase paling tinggi sebesar 26,21%, waktu tunggu  21,38%, waste motion 19,31% dan waste inventories 15,17%. sedangkan hasil pemetaan Value Stream Mapping Current State Map diperoleh production lead time selama 7.680 detik dan total cycle time selama 6.660 detik serta nilai PCE Current State Map sebesar 53,09%. Identifikasi akar permasalahan pemborosan menggunakan diagram Fishbone, 5 Why Analysis, 5W+1H, Fault Tree Analysis dan FMEA. Setelah dilakukan tindakan–tindakan perbaikan, berdasarkan pemetaan Value Stream Mapping Future ada penurunan production lead time menjadi 5.220 detik dan penurunan total cycle time menjadi 4.860 detik serta ada peningkatan PCE Future State Map menjadi 68,10% sehingga ada peningkatan 15,01% yang menunjukan proses produksi perusahaan telah menjadi lebih Lean.

scholarly journals Increasing Productivity by Reducing Manufacturing Lead Time through Value Stream Mapping

2012 ◽  
pp. 225-229
Author(s):  
Renu Yadav ◽  
Ashish Shastri ◽  
Mithlesh Rathore
Keyword(s):  
Lead Time ◽  
Value Added ◽  
Value Stream Mapping ◽  
Mapping Technique ◽  
Inventory Level ◽  
Lead Times ◽  
Business World ◽  
Value Stream ◽  
Current State ◽  
Future State

To survive in today’s competitive business world, companies require small lead times, low costs and high customer service levels. As such, companies pay more effort to reduce their manufacturing lead times. Value stream mapping (VSM) technique has been used on a broad scale in big companies such as Toyota and Boeing. This paper considers the implementation of value stream mapping technique in manufacturing helical springs by railway spring manufacturing company. It focuses on product family, current state map improvements and the future state map. The aim is to identify waste in the form of non value added activities & processes and then removing them to improve the performance of the company. Current state map is prepared to describe the existing position and various problem areas.. Future state map is prepared to show the proposed improvement action plans. The achievements of value stream implementation are reduction in lead time, cycle time and inventory level. It was found that even a small company can make significant improvements by adopting VSM technology. It was concluded that if we adopt the VSM technique the company could reduce the manufacturing lead time from 36.86 days to 34.06 days.

Improving the performance of a Malaysian pharmaceutical warehouse supply chain by integrating value stream mapping and discrete event simulation

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Ahmed Abideen ◽  
Fazeeda Binti Mohamad
Keyword(s):  
Supply Chain ◽  
Lead Time ◽  
Discrete Event ◽  
Integrated Approach ◽  
Value Stream Mapping ◽  
Content Type ◽  
Value Stream ◽  
Future State ◽  
The Future ◽  
Value Stream Map

Purpose Lean implementation is vastly incorporated in core manufacturing processes; however, its applicability in the supply chain and service industry is still in its infancy. To acquire performance excellence and thrive in the global competitive market, many firms are adopting newer methodologies. But, there is a stringent need for production simulation systems to analyze supply chains both inbound and outbound. The era of face validation is slowly disappearing. Lean tools and procedures that provide future state assumptions need advanced tools and techniques to measure, quantify, analyze and validate them. The purpose of this study is to enable dynamic quantification and visualization of the future state of a warehouse supply chain value stream map using discrete event simulation (DES) technique. Design/methodology/approach This study aimed to apply an integrated approach of the value stream mapping (VSM) and DES in a Malaysian pharmaceutical production warehouse. The main focus is diverted towards reducing the warehouse supply chain lead time by initially constructing a supply chain value stream map (both present state and future state) and integrating its data in a DES modelling and simulation software to dynamically visualize the changes in future state value stream map. Findings The DES simulation was able to mimic the future state lead time reductions successfully, which assists in better decision-making. Improvements were seen related to total lead time, process time, value and non-value-added percentage. Warehouse performance metrics such as receiving, put away and storage rates were substantially improved along with pallet processing time, worker and forklift throughput usage percentage. Detailed findings are clearly stated at the end of this paper. Research limitations/implications This study is limited to the warehouse environment and further additional process models and functional upgrades in the DES software systems are very much needed to directly visualize and quantify all the possible Lean assumptions such as radio frequency image identification/Andon (Jidoka), 5S, Kanban, Just-In-Time and Heijunka. However, DES has a leading edge in extracting dynamic characteristics out of a static VSM timeline and capture details on discrete events precisely by picturizing facility modification and lead time related to it. Practical implications This paper includes all the fundamental pharmaceutical warehouse supply chain processes and the simulations of the future state VSM in a real-life context by successfully reducing supply chain lead time and allowing managers in inculcating near-optimal decision-making, controlling and coordinating warehouse supply chain activities as a whole. Social implications This integrated approach of DES and VSM can involve managers and top management to support the adoption of anticipated changes. This study also has the potential to engage practitioners, researchers and decision-makers in the warehouse industry. Originality/value This study involves a powerful DES software package that can mimic the real situation as a virtual simulation and all the data and model building are based on a real warehouse scenario in the pharmaceutical industry.

scholarly journals WASTE ELIMINATION USING VALUE STREAM MAPPING AND VALSAT

2017 ◽  
Vol 3 (2) ◽  
Author(s):  
Dion Avellino Suyanto ◽  
Sunday Noya
Keyword(s):  
Lean Manufacturing ◽  
Lead Time ◽  
Value Stream Mapping ◽  
Value Stream ◽  
Current State ◽  
Future State ◽  
Analysis Tools ◽  
Fierce Competition ◽  
Cycle Efficiency ◽  
Working Efficiency

Fierce competition encourages companies to make continuous improvements to achieve better working efficiency. One method to improve the working efficiency is using the concept of lean manufacturing. The efficiency of the existing work in PT. Rimba Kencana is still not good because there are many processes that are not uniform and because of that, production lead time is increased. By using value stream mapping and value stream analysis tools (VALSAT), the production processes in the company are mapped into the current state mapping and future state mapping. In the current state mapping, the total value of production lead time is 59.49 days and the value of process cycle efficiency (PCE) is 0.013%. After doing improvement on welding department, the total value of production lead time decreased to 48.22 days and the value of process cycle efficiency becomes 0.016%. Keywords: Efficiency, Value Stream Mapping, Value Stream Analysis Tools

Implementation of the Lean Model for Carrying out Value Stream Mapping and SMED in the Aerospace Engine Case Production

2012 ◽  
Vol 542-543 ◽  
pp. 302-310 ◽  
Author(s):  
Chen Hua Wang ◽  
Jar Her Kao ◽  
Sanjay Kumar Thakur
Keyword(s):  
Production Line ◽  
Lean Manufacturing ◽  
Lead Time ◽  
Setup Time ◽  
Second Step ◽  
Value Stream Mapping ◽  
Value Stream ◽  
Current State ◽  
Industry Sectors ◽  
Value Stream Map

The lean manufacturing has been widely applied in the most of the industry sectors. Single Minute Exchange of Dies (SMED) is one of lean manufacturing tools that can be used to further reduce production waste. In order to ensure waste be effectively reduced, lean manufacturing has tools to achieve its goal. The first step is analysis of current state value stream map from the production line. The second step is the use of Single Minute Exchange of Dies to propose and carry out improvement actions in bottleneck process. In this study, the aerospace engine case production lead time was reduced from 9 weeks to 7 weeks by VSM method. The SMED method was applied to improve bottleneck’s setup time from 95.68 minutes to 76.97 minutes. The lean manufacturing tool can help factory to reduce inventory in the WIP.

An application of value stream mapping in auto-ancillary industry: a case study

2019 ◽  
Vol 32 (1) ◽  
pp. 162-182 ◽  
Author(s):  
Naga Vamsi Krishna Jasti ◽  
Srinivas Kota ◽  
Kuldip Singh Sangwan
Keyword(s):  
Product Family ◽  
Value Stream Mapping ◽  
Inventory Level ◽  
Specific Product ◽  
Content Type ◽  
Value Stream ◽  
Current State ◽  
Future State ◽  
Auto Component

Purpose Lean manufacturing (LM) plays a major role in eliminating wastes (activities/resources) in a manufacturing organization. Value stream mapping (VSM) is one of the critical tools in LM which will help in identifying wastes in materials and information flow in a specific product family. The purpose of this paper is to illustrate the significance of VSM in the auto-ancillary industry in enhancing the productivity and the quality. Design/methodology/approach A case study approach is followed to demonstrate the significance of VSM in identifying various wastes in the auto-ancillary industry. The study has been performed by implementing seven critical steps. A product family is identified based on the customer demand and a cross functional team with specialized experts was formed. The overall processes with sequence are mapped using process flowchart. A cross functional team has been formed to develop the current state of VSM and perform a critical analysis to identify shortcomings. An investigation was performed to overcome the existing shortcomings by identifying opportunities. The relevant kaizens to improve the current state have been proposed. The cross functional team of experts have performed a feasibility study on implementation of proposed kaizens. Finally, a future state of VSM after implementation of feasible kaizens has been reported. Findings The results show that future state of VSM brings out the positive impact with respect to process ratio, TAKT time, process inventory level, total lead time and bottleneck time. The proposed improvement also helped to achieve higher customer satisfaction in terms of increased quality, reduced cost and on time delivery. Research limitations/implications Present study is focussed on a single product family cell in one of the auto-component organization. Originality/value Helps practitioners in the auto-component industry to implement the VSM effectively in their organization.

scholarly journals APLICAÇÃO DO MAPEAMENTO DE FLUXO DE VALOR EM UMA INDÚSTRIA DE COMPONENTES PARA CALÇADOS DO VALE DO SINOS

2019 ◽  
Vol 10 (2) ◽  
pp. 137
Author(s):  
Eduardo Herzer
Keyword(s):  
De Novo ◽  
Value Stream Mapping ◽  
Ongoing Activity ◽  
Lean Thinking ◽  
Value Stream ◽  
Current State ◽  
Future State ◽  
The Future ◽  
Is Value

Reduzir custos e desperdícios é uma atividade continua dentro da empresa para que elas se perpetuem. Para facilitar esta atividade, pode ser utilizado ferramentas e métodos para verificar o que realmente pode ser efetuado e em que ponto do processo e das operações. Uma ferramenta é o Mapeamento do Fluxo de Valor, que tem como objetivo desenhar o estado atual e desenhar o estado futuro com a finalidade de melhorar os pontos levantados por meio de aplicação de princípios da mentalidade enxuta. Este artigo aborda a aplicação desta ferramenta em uma indústria de Componentes de Calçados de Novo Hamburgo (RS) e traz como resultados a as sugestões de aplicação de ferramentas de produção enxuta. A pesquisa ocorreu no ano de 2015, onde por meio de um estudo de caso e exploratório foi possível construir os mapas e propor melhorias por meio de um estudo de caso. Os resultados apontam a existência de desperdícios em diversos pontos do fluxo de valor avaliado e o mapa de estado futuro sugere a aplicação de ferramentas para reduzir os desperdícios identificados.Palavras-chave: Lean Thinking. Mapeamento de Fluxo de Valor. Componentes para Calçados.ABSTRACTReducing costs and waste is an ongoing activity within the company to perpetuate it. To facilitate this activity, tools and methods can be used to verify what can actually be done and at what point in the process and operations. One tool is Value Stream Mapping, which aims to draw the current state and draw the future state in order to improve the points raised through the application of lean mindset principles. This article discusses the application of this tool in a footwear components industry in Novo Hamburgo (RS) and brings as a result the suggestions for applying lean production tools. The research took place in 2015, where through a case study and exploratory it was possible to build the maps and propose improvements through a case study. The results indicate the existence of waste in several points of the evaluated value stream and the future state map suggests the application of tools to reduce the identified waste.Keywords: Lean Thinking. Value Stream Mapping. Components for Shoes.

scholarly journals Green productivity: waste reduction with green value stream mapping. A case study of leather production

2021 ◽  
Vol 9 (1) ◽  
pp. 47
Author(s):  
J. Prayugo ◽  
L.X. Zhong
Keyword(s):  
Production Line ◽  
Waste Reduction ◽  
Value Stream Mapping ◽  
Analysis Model ◽  
Green Waste ◽  
Value Stream ◽  
Current State ◽  
Future State ◽  
Green Productivity

<p>This study aims to identify and reduce waste in PT Rajapaksi Adya Perkasa manufacturing company. The analysis uses the concept of green productivity with Green Value Stream Mapping as the analysis model. Through the GVSM current state, this study calculates the amount of green waste in the production line including seven green waste. The result of this study shows an improvement to minimize the waste that occurs through the GVSM future state. GVSM technique increases the green productivity value from 1.12 to 1.81.</p>

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