Study of mould hardness for alpha set type resin bonded moulding sand system using Taguchi approach for metal casting applications

Deshpande Anand,Chate Ganesh,Patil Pratik,Deshpande Pratik,Vaidya Tejashree,Gharge Aishwarya,P.B Raghuvir,T.M Mathew

doi:10.1051/matecconf/201814403007

Deshpande Anand, Chate Ganesh + Show 6 more

Open Access

https://doi.org/10.1051/matecconf/201814403007

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Abstract

The quality of the castings are depended on many properties of sand mould like mould hardness, green compression strength, shear strength etc. and these properties in turn dependent on factors such as grain fineness number of sand, setting/curing time, amount of resin, amount of hardener, moisture content etc. Mould hardness is very important while transferring mould from moulding station to pouring station when the weight of the mould is above 100kg and may lead to defects. In the present work, an effort is made to study the mould hardness of a moulding sand specimen using Taguchi technique.L9 orthogonal array is used and experiments are conducted randomly. The main factors such as the amount of resin, amount of hardener and setting time were considered. Factors were selected based on Literature review and brainstorming session with foundries. The chemical (resin and hardener) used is alphas set type two part system. From experiments, it was observed that the Amount of resin and setting time are significant for mould hardness. Confirmation tests were conducted to validate the obtained results.

Highlights

Casting is the most basic manufacturing process to manufacture the engineering products made up of metals
Based on the type of sand and binding agents used, sand casting is again divided into the green sand moulding, chemicals and moulding, dry sand moulding, no-bake sand moulding, cold box moulding
Many researchers worked in the field of sand moulding and tried to optimize the moulding sand system used for making moulds using different techniques

Summary

Introduction

Casting is the most basic manufacturing process to manufacture the engineering products made up of metals. There are many types of castings like sand casting, shell moulding, injection moulding etc. Sand casting is the widest method adopted to make cast products. Based on the type of sand and binding agents used, sand casting is again divided into the green sand moulding, chemicals and moulding, dry sand moulding, no-bake sand moulding, cold box moulding. Many researchers worked in the field of sand moulding and tried to optimize the moulding sand system used for making moulds using different techniques. Rasik et al used Taguchi technique to optimize process parameters in sand casting [1].Danko et al investigated the properties of the reclaimed sand for making nobake sand moulds using alpha set binding system by using newly reclamation

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