Development Of Cooling System In Hot Press Forming For Automotive Industry

Mohd Syafiq Shaik, Abdul Aziz (2013) Development Of Cooling System In Hot Press Forming For Automotive Industry. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Nowadays, hot press forming (HPF) technology with high strength steel is becoming more popular in automotive industry. In hot press forming process, the blanks are hot formed and press hardened in a water-cooled tool to achieve high strength. Hence, the design of the tool with necessary cooling significantly influences the final properties of the blank and the process time. In addition, in order to reach the final high strengths, the cooling phase was of crucial importance. This means that besides the normal forming issues, the cooling phase needs to be taken into accounts. Duration, effectiveness and localization of the cooling is important here. In this project, cooling system were designed in order to optimize the cooling rate that need to be controlled in the process. The cooling system was designed by using SOLIDWORKS 2012 CAD Software. Then, an analysis was performed by using ANSYS FLUENT Flow Analysis Software in order to get the results needed regarding the flow of the fluid in cooling system such as the temperature of the fluid when flows in the cooling channel, the pressure of the fluids and also the velocity of the fluids when flowing through the cooling channel. This was important to ensure the flows of cooling medium in cooling system function well. After that, the results was discussed and analysed to get a conclusion. From the results, it is proved that Rovalma Steel (HTCS 150) is suitable to be used as a die since it has the ability to transfer heat from the heated blank rapidly. Besides that, the position of cooling channel at the die also influence the better results of the die.

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