An Alternative process including sand casting, forging and heat treatment of 30mm diameter X48CrMoV8-1 tool steel

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Date

2012

Author

Ağacık, İhsan Alp

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Shear blades are mostly made of cold-work tool steels and manufactured by rolling process. Rolling process is performed not only for forming the tool but also for improving the mechanical properties. In this study, an alternative method, involving sand casting, hot forging and heat treatment processes to manufacture the shear blades, has been proposed. In the proposed method, plastic deformation will be carried out by means of forging instead of rolling. The material has been selected as X48CrMoV8-1. For both of casting and forging processes, simulations have been conducted by using Computer Aided Engineering Software. According to the results of casting process simulation, the billets have been poured. These billets have been soft annealed first and then taken as the initial raw material for the forging process. After the forging process, quenching and tempering processes have been applied. The specimens have been taken as cast, as forged and as tempered and the microstructural analysis and mechanical tests have been performed on these. The same tests and analysis have been repeated for a commercially available shear blade sample which is manufactured by rolling. All these investigations have shown that the properties of the forged shear blade are very similar to the rolled shear blade. Therefore, the new proposed method has been verified to be used as an alternative manufacturing method for the cold-work tool steel shear blades.

Subject Keywords

Sand casting, Shear (Mechanics), Blades, Steel castings, Steel forgings.

URI

http://etd.lib.metu.edu.tr/upload/12614962/index.pdf
https://hdl.handle.net/11511/21987

Collections

Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

İ. A. Ağacık, “An Alternative process including sand casting, forging and heat treatment of 30mm diameter X48CrMoV8-1 tool steel,” M.S. - Master of Science, Middle East Technical University, 2012.