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The MIM technology advantage
Update time 2016/8/23 9:07:54 Click times 1050 次 Return



Technology Comparisons
     There is a place for each of the traditional metal-forming processes: each has its own strong suits as well as its limitations. But wherever a component fabrication choice exists between MIM and one or more of the other processes, it pays to see how they stack up in a head-to-head comparison.
     The following table shows how the four major processes fare in some of the more important parameters to consider.

Parameter

MIM

CONVENTIONAL
PM

MACHINING

INVESTMENT
CASTING

Density

98%

88%

100%

98%

Tensile Strength

High

Low

High

High

Elongation

High

Low

High

High

Hardness

High

Low

High

High

Complexity

High

Low

High

Medium

Surface Finish

High

Medium

High

Medium

Production Volumes

High

High

Low

Medium

Range of Materials

High

High

High

Medium-High

Cost

Medium

Low

High

Medium

MIM vs. Conventional PM
• MIM can produce geometries that eliminate secondary operations
• MIM offers superior density, corrosion performance, strength, ductility
• MIM can combine two or more PM components into one, reducing part count

MIM vs. Machining
• MIM designs save material and weight
• MIM provides cost savings through better material utilization—sprues and runners can be  reground and reused as feedstock with no compromise to final properties
• Molding from a single tool eliminates multiple set-up operations
• Difficult-to-machine materials can be molded into a net shape

MIM vs. Investment Casting
• MIM can produce thinner wall sections, sharper cutting points
• MIM produces better surface finish
• MIM is better for small-diameter blind and through holes
• MIM greatly reduces requirements for finish machining
• MIM produces high volumes of small components at a lower cost, faster lead times
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