Mathematical modeling for selection of process parameters in induction hardening of EN8 D steel

Abstract

Mathematical modeling with computer application is becoming more and more popular in study, development of setup, maintenance of induction heating process. It can be used to explain, demonstrate and predict the process performance of induction hardening system. Different methods used to solve the field problems. In this paper, an effective Taguchi methodology has been utilized for selection of optimum process parameters of induction hardening of EN8 D steel. Various parameters such as power and heating time have been explored by experimentation. An orthogonal array, L9 , analysis variance of ANOVA are applied study the performance characteristic of induction hardening process. Hardness has been considered as performance characteristic. Analysis of variance (ANOVA) of response variable shows a significant influence of process variables i.e. power and heating time. The experimental results shows that the predicted mathematical models suggested could describe the performance characteristics within the limits of the factors being investigated .The results of regression equations have been verified by confirmation tests. Also microstructure analysis is done for justification of hardening work.

The Development of a Mathematical Model for the Prediction of Corrosion Rate Behaviour for Mild Steel in 0.5 M Sulphuric Acid

“…The interactive effects are between temperature and inhibitor concentration ( ) and inhibitor concentration and time ( ) are −2.51 and −2.54 mpy. Similar results have been observed by (17,22,23).…”

“…The residual (error) associated with the relationship between the experimental values and the computed values from the regression models for mild steel were very less (less than 4% error). This is in line with findings of [23]. Hence, the regression models developed demonstrated feasible and effective way to predict the corrosion rate of the mild steel.…”

Computational Dynamics of Anti-Corrosion Performance of Laser Alloyed Metallic Materials

“…Kochure and Nandurkar [55] applied the use of the Taguchi method of experimental design with L 9 orthogonal for selection of optimum process parameters of induction hardening of EN8 D steel. Orthogonal arrays L 9 , signal to noise ratio, and analysis of variance (ANOVA) were applied to study performance characteristics of induction hardening process.…”

Investigation with Taguchi method of the effects of the robot-controlled induction hardening parameters on surface hardness of sheet metal moulds

“…Kochure ve Nandurkar [1], EN8 D çelik malzemesinin indüksiyon sertleştirme işleminde optimum proses parametrelerinin belirlenmesi için Taguchi metodundan yararlanmışlardır. Çalışmada L9 ortogonal matrisini, sinyal-gürültü oranını ve ANOVA tekniğini kullanmışlardır.…”