Pesquisa Operacional aplicada à Gestão de Produção e Logística Prof. Eng. Junior Buzatto Case 3.

Apresentação em tema: "Pesquisa Operacional aplicada à Gestão de Produção e Logística Prof. Eng. Junior Buzatto Case 3."— Transcrição da apresentação:

1 Pesquisa Operacional aplicada à Gestão de Produção e Logística Prof. Eng. Junior Buzatto jbuzatto@colormatrix.com.br jbuzatto@colormatrix.com.br Case 3 – Eastern Steel Blending Example In this case, Iron ore from 4 different mines is blended to make a metal alloy for a new product at the Eastern Steel. In order to produce a blend with suitable tensile qualities, the following minimum requirements must be met on three basic elements (A, B, and C): MIN. REQUIREMENT PER TON OF BLEND (pounds of each element) BASIC ELEMENT A 5 B100 C 30

2 Case 3 – Eastern Steel Blending Example The amount of these elements in the ores from the three different mines is given below: MINE (pounds per ton of each element) BASIC ELEMENT A10 3 8 2 B90150 75175 C45 25 20 37 12341234 We must now take into consideration the cost of ore from each mine:

3 Case 3 – Eastern Steel Blending Example DOLLAR COST PER TON OF ORE MINE 1800 2400 3600 4500 Eastern Steel’s objective is to come up with a least-cost feasible blend of the ores. You are the responsible for coordinating of this supply chain and you have to plan the production and logistic model. Now you must to put it all together and write the complete symbolic model. Note: There is an important Equality Constraint (also called a material balance condition)

4 Pesquisa Operacional aplicada à Gestão de Produção e Logística Prof. Eng. Junior Buzatto jbuzatto@colormatrix.com.br jbuzatto@colormatrix.com.br 1- What is the goal of Eastern Steel? 2- Which are the decisions variables? 3- Which are the restrictions variables? 4- Which is the best decision to make? 5- Once a decision is made, what should be the new supply chain lay-out? 6- What is the expected raw material cost of 1 ton of metal alloy? 7- The company intends to buy the 5 th mine by U$ 500.000 (Payment Terms: In Advanced) with the following properties: Case 3 – Eastern Steel Blending Example

5 Pesquisa Operacional aplicada à Gestão de Produção e Logística Prof. Eng. Junior Buzatto jbuzatto@colormatrix.com.br jbuzatto@colormatrix.com.br 7- (Cont) The monthly production is 1.000 ton of metal alloy. From mine 5, the dollar cost per ton of ore is 700. What is your opinion of this new business? Why? Note: If Eastern Steel wants to sell any mine, the standard selling price of mines 1,2,3 and 4 is U$ 150.000, U$ 200.000, U$ 180.000 and U$ 100.000, respectively. 8- Which others management analysis we can do? Comment: Make a presentation (5 min) and Hand in the assignment in print. Case 3 – Eastern Steel Blending Example MINE 5 (pounds per ton of each element) BASIC ELEMENT 75 15 30 ABCABC