Productivity Improvement and Reduction of Lead Time in Manufacturing Industry Using Lean Tools
Sivaraman Parthasarathi,
Prabhu M. K.,
Krishanamani J.,
Mitun L.,
Prakash Vellingiri G.,
Rahul C. S.
Issue:
Volume 5, Issue 1, June 2021
Pages:
1-6
Received:
12 February 2021
Accepted:
26 February 2021
Published:
26 April 2021
Abstract: To look at the current arrangement of a creation line in a shop floor of controlling stuff box fabricating industry also, to improve the profitability utilizing lean strategy absent really any influencing current working frameworks. Technique/ Examination: Broad scopes of lean assembling devices are accessible to deal with a wide range of issues looked by changed fabricating businesses. It likewise helps for effective expense decrease of the assembling part and to guarantee the nature of maker and client. Discoveries: The basic Non-Value added Activities (NVA) were perceived and probabilities needed for improvement has been perceived. Value Stream Mapping (VSM) has the standing of finding squander during assembling and business measure which encourage distinguishing and eliminating or stream the worth added steps furthermore, to kill the non-esteem added steps. Application/Improvements: After achievement of fitting lean instruments, it was discovered that the all out arrangement time was consolidated by around 180 minutes and process duration was dense by about 98 minutes which eventually decreases the lead time and builds the efficiency. A lean manufacturing initiative focuses on cost reduction and increases in turnover by systematically and continuously eliminating non-value-added activities. In today's competitive market, lean is turning out to be "the solution" to manufacturing industries across the spectrum for survival and success.
Abstract: To look at the current arrangement of a creation line in a shop floor of controlling stuff box fabricating industry also, to improve the profitability utilizing lean strategy absent really any influencing current working frameworks. Technique/ Examination: Broad scopes of lean assembling devices are accessible to deal with a wide range of issues lo...
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Minimizing Costs of Poor Quality for Glass Container Bottles Production Using Six Sigma’s Dmaic Methodology: A Case Study in a Bottle and Glass Share Company
Besufekad Legesse,
Sisay Geremew
Issue:
Volume 5, Issue 1, June 2021
Pages:
7-20
Received:
26 April 2021
Accepted:
24 June 2021
Published:
23 August 2021
Abstract: Even if many tools are available to reduce defect, six sigma’s DMAIC model is one of a tool which significantly reduce defect if it is applied with appropriate methodology. In this work defect reduction is achieved using DMAIC model as a means. At the define phase major product types and defects are crafted and identified by using brainstorming, supplier-input-process-output-customer diagram, Pareto Diagram and failure mode and effect analysis. So that poor bead diameter and uneven glass distribution have been selected from the glass making processes. At the measuring phase data has taken and observed to display how the process behaves. Control charts, capability analysis and six pack capability analysis are applied to understand the process condition. Based on the data obtained from the preceding phase analysis undertaken using Fishbone diagram. The graph illustrates the root causes that are in need to improve. After the analysis phase identified the root causes i.e. process parameters, the improvement phase has held by using Taguchi technique to optimize the process parameters. The Taguchi analysis identified the main factors which determine the processes output factors. After the optimum value is decided the result is collected to check its effectiveness. these improvements decreased defects per million opportunities (DPMO) from 149,997.8 to 50,000 and reduced poor quality cost from ETB 429,540.3 to ETB 143,178 per day and the result showed that defect has reduced by 30% compared with the previous output.
Abstract: Even if many tools are available to reduce defect, six sigma’s DMAIC model is one of a tool which significantly reduce defect if it is applied with appropriate methodology. In this work defect reduction is achieved using DMAIC model as a means. At the define phase major product types and defects are crafted and identified by using brainstorming, su...
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Design a Half Bridge Inverter and a Full Bridge Inverter with Overload Protection Circuit Using IC555
Issue:
Volume 5, Issue 1, June 2021
Pages:
21-27
Received:
31 July 2021
Accepted:
12 August 2021
Published:
23 August 2021
Abstract: Inverter is a power electronic circuit that converts the direct voltage (DC) to an alternating voltage (AC). Inverters are used in a range of applications from consumer electronics and industrial to renewable energy. The flexible capability to create an AC signal from a DC voltage, frequency and speed control are all accomplished from the use of Inverter. Inverter takes the voltage and passes it through switching elements which turn the DC signal into an AC square wave signal. This wave is then passes through filter which turns it into a sine wave signal of the required voltage. This paper presents design an inverter with overcurrent protection circuit without microcontroller, where the MOSFET gate driver is controlled by pulses generated from 555 timer, and with using a low pass filter and setup transformer, a low cost sine wave inverter has been obtained. The heart of the design is 555 timer. The design is achieved in Proteus 8. Simulation results demonstrated that a single phase sine wave (50 Hz) has been generated by a half bridge inverter and a full bridge inverter and protection circuit from current higher than 4.5A has been built. The reliability and accuracy of the system are verified through an experiment.
Abstract: Inverter is a power electronic circuit that converts the direct voltage (DC) to an alternating voltage (AC). Inverters are used in a range of applications from consumer electronics and industrial to renewable energy. The flexible capability to create an AC signal from a DC voltage, frequency and speed control are all accomplished from the use of In...
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