Application Notes
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Ripple marks formed in die-casting / 3D shape measurement using a digital microscope


In the die casting process, molten metal flowing into the die may harden before it is fused completely, producing shallow wrinkles on the die-cast surface. This phenomenon is known as ripple marks. The ripple marks are problematic because they distort the external appearance of the product and may cause damage or deformation when stress is applied.

Olympus' solution

Olympus' DSX digital microscope easily creates accurate three-dimensional micro surface profiles, making it the ideal choice for defect management. Instead of dragging a contact stylus across the material’s surface, the DSX uses an optical method to create a 3D rendering of surface features. This ensures that delicate surfaces are not scratched or damaged. The DSX also features differential interference contrast (DIC) so users can easily observe even fine irregularities.

Non-defective surface

non-defective surface

non-defective surface_objective 20x_zoom 1x_4x2 stitching
Objective lens 20X zoom 1X 4×2 stitching

Defective surface

defective surface

defective surface_objective 20x_zoom 1x_4x2 stitching
Objective lens 20X zoom 1X 4×2 stitching

Olympus IMS

Immagini e risultati migliori. I microscopi digitali DSX1000 permettono un'analisi più veloce dei guasti assicurando precisione e ripetibilità

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