Estimation and Comparison of Welding Cost of MIG & MAG Process on Mild Steel

In the present work welding cost estimation was done. Welding cost estimation was done for MIG & MAG and the cost difference has been investigated by calculating for both the cases (MIG & MAG) for welding the piece of MILD STEEL (contains carbon 0.15 to 0.3 %, silicon 0.2 to 0.5 %, manganese, sulfur and phosphorous as impurities). The calculation was done by Parameter method and cost difference found was approximately Rs. 20 calculated for the mild steel pieces (150*15*80) mm having butt welding with the V-groove (45 Degree). By market...

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Environmentally Lean Production: The Development and Incorporation of an Environmental Impact Index into Value Stream Mapping

There is a need to include environmental waste alongside other lean wastes. Current concepts of environmental waste focus on the total production of waste from a plant. However waste is generated by individual processes within the production. Therefore focused management of waste requires engineers to know what and where waste is being generated. This is often simply not known with any accuracy. This work offer a solution by developing a method to integrate environmental waste into the lean method of Value Stream Mapping (VSM). Specifically it...

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Lean Leadership – 15 Rules for a Sustainable Lean Implementation

Lean leadership could be the missing link between toolbox lean and a sustainable continuously improving organization. More and more enterprises realize that they have so far basically focused on the visible parts of lean production systems. Although process optimization with the various methods like kanban, 5S, SMED, FIFO and many more is very effective to achieve short term improvements, after a few years, the lean programs of many enterprises do not meet the expectations anymore. The common approach can be explained by using the 4P Model....

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Optimal Recharging Policies for Electric Vehicles

Recharging decisions for electric vehicles require many special considerations due to battery dynamics. Battery longevity is prolonged by recharging less frequently and at slower rates, and also by not charging the battery too close to its maximum capacity. In this paper, we address the problem of finding an optimal recharging policy for an electric vehicle along a given path. The path consists of a sequence of nodes, each representing a charging station, and the driver must decide where to stop and how much to recharge at each stop. We present...

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Lean Manufacturing Case Study with Kanban System Implementation

Lean manufacturing has been the buzzword in the area of manufacturing for past few years especially in Japan. The Kanban system is one of the manufacturing strategies for lean production with minimal inventory and reduced costs. However, the Kanban system is not being implemented widely by manufacturing companies in Malaysia. Thus, the objectives of this case study are 1) to determine how does the Kanban system works effectively in multinational organization; and 2) to identify factors hindering Malaysian small and medium enterprises (SME) from...

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Implementation of Just in Time Production through Kanban System

Uncertainties brought about by fluctuations in demand and customers’ requirements have led many established companies to improve their manufacturing process by adopting the Kanban system. By doing so, they are able to manufacture and supply the right product, in the right quantity, at the right place and time. Implementation of the Kanban system resulted in reduction of inventory to minimum levels besides increasing flexibility of manufacturing. Successful implementation of the Kanban system furthermore reduces operational costs, consequently increases...

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