Metal Injection Molding Advantages Compared With Conventional Processing
Metal Injection Molding vs Powder Metallurgy
The feedstock available for Metal Injection Molding (MIM) is comprised of very fine powders, (particles size usually ＜ 20 microns ), as compared with the ＞ 40 microns diameters tytical to conventional metal powders, which results in 95-100% of theoretical density and excellent flexible complexity that conventional Powder Metallurgy can’t achieve.
Metal Injection Molding vs Die Casting
Die casting is limited in aluminum alloy, zinc alloy and other material with low melting point and good liquidity, which causes that the strength, abrasion resistance and corrosion resistance are limited. The variety of material for MIM is larger.
In recent years, the accuracy and complexity of die casting parts has been improved, but is still below what MIM and PM could achieve. Besides, die casting is too difficult for the parts with small structure, thin wall and mass production which MIM is good at.
Metal Injection Molding vs Machining
In the last few years, the traditional machining methods has improved their manufacturing capacity, efficiency and accuracy rely on automation. But the basic procedures are still complicated, which consists of turning, planing, milling, grinding, drilling, polishing, etc. The accuracy of machining is well higher than that of other conventional processing. But it’s not suited for many parts, because the material effective utilization rate is low, and that the completion of its shape is limited by equipment and tool. On the contrary, MIM can effectively utilize material, and the geometry flexibility is not restricted.
MIM is greatly competitive with effective cost and high efficiency for precision parts with small and complex structure.
MIM makes up for the deficiency of the traditional processing methods in technology, not only competes with traditional processing methods. Find the difference.
Metal Injection Molding Advantages
MIM is currently the best suitable for mass production of small parts with high melting point, high strength, and complex geometry, from the MIM process analysis.
Metal Injection Molding Advantages can be summarized as follows
1, MIM could manufacture parts with very complex geometry and high uniformity in density and properties.
2, Its geometry is mostly identical to that of finished piece with great accuracy.
3, MIM could achieve more than 95% of theoretical density, and its performance is comparable with forging parts, especially dynamic performance.
4, MIM can easily use a multi-cavity mold, which contribute to high efficiency of shaping. And mould service life is long and is flexible to change.
5, More than 98% of material utilization rate.
6, A wide range of material and broad application
field. The variety of material available for MIM is large, such as carbon
steel, alloy steel, tool steel, hard metal, hard alloy, high proportion alloy,
etc. MIM has covered all domains of national economy. Powder Selection Guide PDF
The complexity and quantity are the two important factors in determining manufacturing technology. MIM could achieve the maximum benefits when used in mass production of complex parts.