Analysis and Optimization of Metal Injection Molding Feedstock SS 316L for Rheological Properties

Prasad, Thota Siva; Yuvaraj, C.; Rao, K. Prahalada

doi:10.1007/s40033-018-0166-3

Cited by 3 publications

(1 citation statement)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This inverse relation is one of the essential characteristics of producing a free-defect green part [40]. For the shear rate between 100 and 10000 1/s, which is usual in injection molding, the maximum viscosity should not exceed 1000 Pa.s [2,4,41]. The viscosity curves for all feedstocks versus the shear rate are shown in Fig.…”

Section: Resultsmentioning

confidence: 98%

Metal Injection Molding of Low Alloy Steel by Using a Palm Stearin/HDPE Binder System

Momeni

2022

KEM

View full text Add to dashboard Cite

Metal injection molding (MIM) is a proven technology for fabricating complex geometry and low-cost components. The binder system formulation and powder loading are the key parameters affecting the final properties of the manufactured parts in this process. This study investigates the influence of palm stearin (PS) content in a PS/High-Density Polyethylene (HDPE) binder system for three powder loadings of 60, 65, and 70 Vol.%. The manufactured feedstocks are characterized using scanning electron micrograph (SEM), thermo gravimetric analysis (TGA), and differential scanning calorimeter (DSC), rheological and mechanical tests. The results show that PS enhances mechanical properties at increased powder loading. In addition, residual carbon following changing the PS percentages has a significant role in determining the final characteristics of parts. Findings demonstrated that PS could drastically alter the rheological behavior, a crucial criterion for optimizing the feedstock formulation in the MIM process.

show abstract

Section: Resultsmentioning

confidence: 98%

Metal Injection Molding of Low Alloy Steel by Using a Palm Stearin/HDPE Binder System

Momeni

2022

KEM

View full text Add to dashboard Cite

show abstract

Effect of thermal debinding and sintering parameters on the mechanical properties of 4605 MIM compact using the RSM

Momeni

Zangi

Alaei

2021

Advances in Materials and Processing Technologies

View full text Add to dashboard Cite

Binder System Composition on the Rheological and Magnetic Properties of Nd-Fe-B Feedstocks for Metal Injection Molding

Momeni,

Luca,

Gonzalez-Gutierrez

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

The applications of Nd-Fe-B-based magnets are experiencing significant diversification to achieve efficiency and miniaturization in different technologies. Metal injection molding (MIM) provides new opportunities to manufacture Nd-Fe-B magnets with high geometrical complexity efficiently. In this study, the impacts of the binder system composition and powder loading on the rheological behavior, contamination, and magnetic properties of the Nd-Fe-B MIM parts were investigated. A high-pressure capillary rheometer was used to measure the apparent viscosity and pressure drops for feedstocks with different binder formulations and powder contents. Also, oxygen and carbon contamination, density, and magnetic properties were measured for different feedstock formulations and powder loadings. From the rheological, density, and magnetic properties points of view, the binder system consisting of 45 vol.% LLDPE as backbone was selected as the optimum formulation. The findings indicated that the sample with this binder system and 55 vol.% powder content had a high density (6.83 g/cm3), remanence (0.591 T), and coercivity (744.6 kA/m) compared to other binder compositions. By using 58 vol.% powder loading, the values of density (7.54 g/cm3), remanence (0.618 T), and carbon residue (982 ppm) improved, and a suitable rheological behavior was still observed. Thus, a suitable feedstock formulation was developed.

show abstract

Analysis and Optimization of Metal Injection Molding Feedstock SS 316L for Rheological Properties

Cited by 3 publications

References 10 publications

Metal Injection Molding of Low Alloy Steel by Using a Palm Stearin/HDPE Binder System

Metal Injection Molding of Low Alloy Steel by Using a Palm Stearin/HDPE Binder System

Effect of thermal debinding and sintering parameters on the mechanical properties of 4605 MIM compact using the RSM

Binder System Composition on the Rheological and Magnetic Properties of Nd-Fe-B Feedstocks for Metal Injection Molding

Contact Info

Product

Resources

About