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Cosmetic Appearance

This side of the tooling for making this casting was manufactured from H-13 material and then processed with each of the noted MetaLLife processes.

This side of the tooling for making this casting was purposely manufactured from a  P-20 material so that typical heat checking would show after only 1200 shots.  This die surface received no MetaLLife treatment.

In 2006, Case Western University studied the effect of retaining lubricant on the surface of a die.  Their finding showed that residual die lubricant film insulates the surface of the die from direct contact with the molten metal thus lowering the maximum surface temperature.  Experienced temperature drop due to die lube residue on a flat surface reached 400 degrees F after 15,000 cycles.  This reduces thermal stresses at the surface of the die which promotes longer die life.

The thickness of the residual die lube layer on a flat surface is not uniform and dependent on orientation and spraying variables.  Compressive topography assures better uniform lubricant retention and better fatigue strength.

These findings were confirmed by Case Western's standardized dip tank test.  The complete report is available in our password protected Die Materials Committee Resource section.

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Average Ra Micro Inch Finish .030" travel

Average Ra Micro Inch Finish .100" travel

Average Ra Micro mm Finish .030" travel

Average Ra Micro mm Finish .100" travel

See
Specs Compression Curves