Metal Injection Molding Process Pdf

The metal injection molding process combines the design flexibility of plastic injection molding with the strength and integrity of wrought metals to offer cost effective solutions for highly complex part geometries.

Metal injection molding process pdf.

2 shows the sequence of processing steps. Metal injection molding is a manufacturing method for producing parts made of metal. Everything you need to know about metal injection molding in one easy download. In the 1970s this process was developed to allow the processing of metal powders by raymond wiech in the us widely considered the inventor of the metal injection molding process.

In addition to cost considerations a strategic view needs to be taken of how these gases are supplied or generated what infrastructure is required to store them and what. Control of the molding process is vital for maintaining tight tolerances in subsequent steps. Smith metal products design guide pdf download. Nevertheless some machine hardware changes are usually required to process a specific feedstock based on their compressibility and viscosity.

Mim is a subcategory of the powder injection molding pim man ufacturing technique. Together they act as binders. Consistency of powder size distribution consistency of powder loading mlp d consistency of powder loading metal powder metal powder 60 volume polymer. Feedstock veryfinemetalpowdersusually 15microns aremixedwithaprimaryparaffinmaterialanda secondary thermoplastic polymer.

The metal injection molding process is usually called by its short acronym mim as it will do in this work. Metal injection molding design examples mim design eliminated a 7 piece. The flow diagram in fig. Pim utilizes the plastics production technology of injection mold.

The injection molding process is mainly identica l to conventional plastic injection molding. Metal injection moulding and industrial scale sinter based additive manufacturing facilities require a secure supply of industrial gases for use as sintering atmospheres. Heaney in handbook of metal injection molding 2012.