Journal
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
Volume 94, Issue 1-4, Pages 1327-1333Publisher
SPRINGER LONDON LTD
DOI: 10.1007/s00170-017-0940-7
Keywords
Microgroove; Nickel phosphide; Crystallization; Brittleness enhancement; Burrs
Funding
- National Basic Research Program of China [2015CB059900]
- National Natural Science Foundation of China [51375050]
- Fok Ying-Tong Education Foundation for Young Teachers in the Higher Education Institutions of China [151052]
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Electroless nickel phosphide (Ni-P) plating is used to fabricate microgrooves for precision glass molding (PGM) due to its excellent mechanical properties as a mold material. To achieve a high-quality microgroove fabrication, the causes of the machining defect, like burrs on the mold surface during the microgrooving of amorphous nickel phosphide (a-Ni-P) by single-point diamond cutting, are investigated. We find that the burrs can be eliminated by increasing the brittleness of a-Ni-P, so the brittleness enhancement of the material is conducted by crystallization. Then, the machined surface and the chip morphology during cutting crystalline nickel phosphide (c-Ni-P) are analyzed and compared with that during a-Ni-P microgrooving. Through this innovation, the surface quality of the microgroove is improved with minimized burrs.
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