Investigating Metal Injection Molding of ۴۶۰۵ low-alloy steel feedstock: Parametric optimization of the injection stage using RSM Technique

سال انتشار: 1401
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 119

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شناسه ملی سند علمی:

ICME19_107

تاریخ نمایه سازی: 19 اردیبهشت 1402

چکیده مقاله:

In this study, we demonstrate the injection stage of Metal Injection Molding (MIM) process to fabricate a small bend-type component. This non-standard but critical engine part is made of a feedstock from the low alloy steel ۴۶۰۵. To optimize various injection parameters, the five-variable Box-Behnken Design (BBD) is used with the assumption of a quadratic model, together with the statistical method of Response Surface Methodology (RSM). Samples are then fabricated and their densities are measured. Hence, the significance of these factors as well as the mutual coupling between each two parameters are investigated using the analysis of variance (ANOVA). Finally, this paper reveals that injection temperature of ۱۵۵ ◦C, the injection speed ۸۰ mm/s, holding pressure of ۸۳ bar, holding time of ۹ s and the injection pressure of ۱۳۲ bar lead to an optimum density of the green part, which becomes ۴.۸۹۲ g/cm۳. Then, a new sample is produced using these optimized settings, and the green component density is measured, which is extremely near to the predicted value.

کلیدواژه ها:

Metal Injection Molding- Low alloy steel-Feedstock- Density- Response Surface Methodology.

نویسندگان

Sina Rezaei

MSc graduated, Department of Materials Engineering, Science & Research Branch, Islamic Azad University, Tehran, Iran

Ali Askari

Assistant Professor, Department of Mechanical Engineering, Karaj Branch, Islamic Azad University, Karaj, Iran