Results 221 to 230 of about 6,405 (263)

Analysis of Powder Segregation in Powder Injection Molding

Advanced Materials Research, 2011
The powder injection molding (PIM) combines the thermoplastic and powder metallurgy technologies to manufacture intricate parts to nearly shape. The powder segregation is a special effect arising in PIM different from than the pure polymer injection.
Yu Hui Wang, Xuan Hui Qu, Wang Feng Zhang, Yan Li   +3 more
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Investigation of Properties of Powder Injection-Molded Steatites

Journal of Materials Engineering and Performance, 2011
In this study, the mechanical and micro-structural properties of injection-molded steatites were investigated experimentally. Initially, steatite powders and binders of polyethylene glycol (PEG), polypropylene (PP), and stearic aside (SA) were mixed to prepare the feedstock. The mixing powders were granulated using the extruder.
Urtekin, Levent, Uslan, I., Tuc, B.
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Release behavior for powder injection molding in stereolithography molds

Rapid Prototyping Journal, 2001
Adhesion has been measured between a powder injection molded (PIM) part and the stereolithography epoxy mold surrounding it after cooling. Analysis of release behavior suggests a link to the thermal properties of the mold material. Subsequent measurements of cooling in the part and at the part/mold interface are consistent with a one‐dimensional heat
James G. Hemrick, Thomas L. Starr, David W. Rosen   +2 more
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Modeling of mold filling process for powder injection molding

Polymer Engineering & Science, 1991
Abstract The mold filling process has been modeled for the injection molding of different polymer‐based binders and powder‐polymer mixtures. It is essentially a two dimensional non‐Newtonian fluid flow analysis in a non‐isothermal environment.
Liaquat Ali Najmi, Daeyong Lee
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The Granular Model in Powder Injection Molding

Advanced Materials Research, 2012
The granular model which is fit for discontinuous bodies is applied to powder injection molding. The powder is regarded as discrete particles which are immersed into binder. The powder three-dimensional flowing in powder injection molding has been simulated based PFC.
Yu Liu, Yi Min Li, Qing Kun Xia, Hao He, Hu You Hua, Xian Wang Zhu   +5 more
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Piezoelectric ceramics by powder injection molding

2010 27th International Conference on Microelectronics Proceedings, 2010
Lead zirconate titanate (PbZrTiO 3 ) and barium titanate (BaTiO 3 ) samples were fabricated using ceramic powder injection molding method (CIM). Piezoelectric CIM samples were characterized and it is shown that obtained properties are satisfactory and comparable to those found in literature.
Stanimirović, Ivanka, Stanimirović, Zdravko   +1 more
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Applications for Metal Powder Injection Molding

2015
Abstract Metal injection molding (MIM) is a metalworking technology that has its origins as a commercial technology only dating back to the early 1970s. This article explores why the MIM is the preferred solution for many fabricated components.
Matt Bulger, Paul Hauck
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Automation of the powder injection molding process

Microsystem Technologies, 2006
Powder injection molding (PIM) offers a high potential for fabrication of micro-mechanical parts manufactured in metal or ceramic material providing a large variety of properties. To ensure an economical micro-PIM production in large lot sizes and high quality automation of the process beginning with demolding, handling, debinding and ending with ...
Fleischer, J., Dieckmann, A.-M.
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Characterization of powder injection molding feedstock

Materials Characterization, 2002
Abstract Powder injection molding (PIM) is a cost-effective technique for producing small, complex, precision parts in high volumes. PIM consists of four main processing steps: mixing, injection molding, debinding and sintering. To reduce the design-to-manufacture cycle time for injection molding, simulation software could be used.
Z.Y. Liu, N.H. Loh, S.B. Tor, K.A. Khor
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Designing for Metal Powder Injection Molding

2015
Abstract This article commences with a discussion on the qualitative and quantitative criteria for metal injection molding (MIM), including production quantities, shape complexity, material performance, and cost. It discusses geometric factors, such as surface finish, component size, and mass range, which help to identify a component for
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