Micro MIM Japan

12,Nov,2019

Technical Newsletter vol.10 : μ-MIM technology is assured by our latest evaluation system

μ-MIM technology is assured by our latest evaluation system

 

 

    We consider an appropriate evaluation system development is important as process development. Our company has implemented number of analytical instruments, evaluation systems and special prototype facilities to support our production of μ-MIM.

 

 

MIM evaluation

  

 

 

Accurate SS curve with high speed sampling

 

This machine is for the standard mechanical property tests as tensile, bending and compression testing. Tensile test commonly employed and it is applying controlled tension until the sample breaks. It measures tensile strength, yield point and elongation. If necessary, it is also possible to accept a new alloy powder from test piece producing to measurement .

 

 

 

MIM part evaluation

 

Applicable to the hardness distribution

 

Vickers hardness is one of the hardness measurement  methods. It is calculated from the diagonal of the square indentation obtained by pressing a pyramidal indenter into the work with a predetermined load. In our company, the Mitutoyo micro Vickers hardness tester is introduced, enabling the comparison with the final product.

 

 

MIM part evaluation

 

C is determining its physical properties

 

The specifications for each material are defined, and in particular, martehsitic steel, it is essential to control the content of carbon (C) in order to maintain the micro strructure or mechanical properties, as shown in the left figure. In MIM, adding a large amount of resin to metal powder is unavoidable, therefore control of carbon is very important.

 

MIM part evaluation

 

From observation of powder particles to identification of contamination

 

SU1510 is the most versatile model created by bringing together Hitachi High-Technologies Corp‘s know-how. It has installed with the HORIBA EMAX x-act, it is possible to observe the distribution of elements on the surface.

 

MIM part evaluation

 

Comprehend phenomena from accurate sample preparation

 

Ion milling E-3500 is a system that creates a cross section of the sample with minimum damaging, such as internal stress and heat. It is possible to observe the state of the plating interface and metallographic structure.

 

 

*Remark : This newsletter was originally published on June 7, 2019

 

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