Improvement of Material Flow in the Production and Supply Chain of ...

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CHAPTER 7 CONCLUSION AND FUTURE WORK 7.1 Conclusion Based on the investigation in Haldex workshop located in Landskrona, the current problems are the production volume cannot satisfy the requirement of forecast market and the space for inventory is limited. After analyzing the data gathered from factory the simulation model was constructed in Extend v6. Depending on the simplified assembly line model, several methods and suggestions were proposed to improve the current situation of the assembly line. After comparing these proposals by cost, lead time and reliability, three best solutions are selected to solve the problem of production volume: 1. Invest one machine at station 8 of main assembly line and cut down the TTR of both station 8 of main assembly line and station 2 of preassembly line; 2. Invest one machine at station 8 of main assembly line and at one machine at station 2 of preassembly line as well; 3. Integrate the two solutions above. I.e. invest two machines one for station 8 in main assembly line and the other one for the station 2 in preassembly line. At the same time reduce the repair time of bottlenecks. The inventory problem can be considered from two aspects. One is from the material flow from suppliers. Selecting appropriate suppliers is very important and useful to solve. After comparing suppliers based on multiple criteria, the suppliers selected in the future should mainly locate in Europe and Asia, where are close to the market. If it is necessary, suppliers locate in North America also can be considered but not recommended. Haldex should cooperate with suppliers in many fields like technology assistances. Associate with the location, suppliers with high quality and reliability with reasonable cost should be selection first. In order to reduce the inventory, produce in a similar JIT model is a good selection but in this option, reliability of supplies should be estimated at first. Constructing a steady and long period partner-ship with suppliers 60
is good for both of factory and supplier. Because of its benefits, an information sharing system, which takes an important role in reducing the inventory, is strongly recommended. The other way to solve the inventory problem is in the material flow from the company to customers. Increasing delivery frequency to customers can help to reduce the inventory. It is also feasible by building new warehouse to store the products and find cooperators close to the workshop to take care of the storage of goods. The inventory problem is coming along with the rapid increasing of the production volume. Nevertheless, the current productivity even cannot satisfy the market requirements. The core assignment for the company at present is improving the production line in order to increase the production volume. 7.2 Future work In this paper some solutions are discussed only from the view of theory. In order to evaluate solutions and suggestions more scientific and acquire most feasible solutions, more detailed information is needed. For example, when assessing current suppliers by the evaluation criterions, it is necessary to know the information about operation and management system of each supplier. Then a more veracious evaluation can be gained. As regards building new factories, it is necessary to investigate the local environment and market carefully, which is time consuming and can be another big project. As described in chapter 6, for the package problem there are many things can be researched in the future, such as the material of package, the style and size of package box, and so on. 61
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ROYAL INSTITUTE OF TECHNOLOGY Impro
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Needs to be pointed out is that in
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TABLE OF CONTENTS ABSTRACT.........
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List of Tables Table 3.1 Descriptiv
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CHAPTER 1 INTRODUCTION OF THE RESEA
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1.2 Present problems Haldex faces i
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CHAPTER 2 RESEARCH THEORY AND METHO
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mindset simply does not accurately
Page 17 and 18: the customers. Both of them are pri
Page 19 and 20: processing in station 5b. In the re
Page 21 and 22: After deleting the un-normal data i
Page 23 and 24: data of preassembly line accords wi
Page 25 and 26: Standard Deviation 68.49 Standard D
Page 27 and 28: Table 3.6 Values of Parameters of T
Page 29 and 30: line. In order to simplify the mode
Page 31 and 32: Table 4.3 Output Date Come From the
Page 33 and 34: Table 4.5 Current Production Volume
Page 35 and 36: Table 4.7 listed the simulation res
Page 37 and 38: 4.3.3 Increasing the operation time
Page 39 and 40: ottlenecks. Obviously, from the poi
Page 41 and 42: the first one. For the third soluti
Page 43: and unforeseen events by keeping sa
Page 46 and 47: separately and the supply chain emp
Page 48 and 49: 5.2.1 Current distribution of suppl
Page 50 and 51: Table 5.2* Delivery Information of
Page 52 and 53: ecause this only gets from experien
Page 54 and 55: 5.3.2 Inventory and suppliers’ se
Page 56 and 57: Table 5.3 Integrative Estimation of
Page 58 and 59: CHAPTER 6 INVENTORY REDUCTION AND D
Page 60 and 61: How to get the best value from a su
Page 62 and 63: calculation, 420 pallets can be suc
Page 64 and 65: each day. The maximum load of one t
Page 66 and 67: and can also overworking during wee
Page 70 and 71: Reference Books and papers • Ahma
Page 72 and 73: y Chapman&Hall. • Vickery, Shawne
Page 74 and 75: Appendix A Table 1 TTF & TTR Data o
Page 76 and 77: Table 5.1 Suppliers & Suppliers’
Page 78 and 79: Appendix B Figure 1 Assembly line M
Page 80 and 81: Figure 3 Current Assembly Line Mode
Page 82 and 83: Figure 5 Assembly Line Model in Sol
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