Low-Stress Cutting of Germanium Blanks for Infrared Optics Manufacturing
In infrared optics manufacturing, everything starts with the blank. For materials like germanium, which are brittle and sensitive to stress, how you cut that blank makes a big difference later on. Poor surface finish or internal stress from the first cut can lead to cracks, polishing difficulty, or even rejection in final inspection. That’s why more manufacturers are switching to diamond wire saws when slicing Ge blanks. With the right setup, this method delivers clean surfaces, low kerf loss, and—most importantly—minimal stress inside the material. Why Germanium Blanks Require Gentle Processing Germanium isn’t a hard material by definition, but its low fracture toughness means it doesn’t tolerate force well. Traditional […]
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