Small milling tools for dental application were diamond coated by means of Hot Filament CVD (HFCVD). Different thicknesses were obtained by using different diamond deposition times (3 and 12h) and seeding conditions. The surface roughness was measured for coated and uncoated mills and milling tests were performed to measure the cutting forces. A ceramic material and a polymeric matrix composite (PMC) were used as workpiece materials. The highest cutting forces were measured for the coated tool with the highest thickness of the diamond coating. Probably, roughness increase and non-optimal edge profiles affect the tool behavior during cutting. As a consequence, tool failure was observed in the case of milling of ceramic by means of the coated tool with the highest coating thickness. The coated tool with a lower thickness of the diamond coating showed an optimal behavior under cutting, above all in the case of PMC milling.

Quadrini, F., Tagliaferri, V., Polini, R. (2008). Effect of coating roughness on performance of small CVD diamond coated tools. MACHINING SCIENCE AND TECHNOLOGY, 12(3), 390-404 [10.1080/10910340802292084].

Effect of coating roughness on performance of small CVD diamond coated tools

QUADRINI, FABRIZIO;TAGLIAFERRI, VINCENZO;POLINI, RICCARDO
2008-01-01

Abstract

Small milling tools for dental application were diamond coated by means of Hot Filament CVD (HFCVD). Different thicknesses were obtained by using different diamond deposition times (3 and 12h) and seeding conditions. The surface roughness was measured for coated and uncoated mills and milling tests were performed to measure the cutting forces. A ceramic material and a polymeric matrix composite (PMC) were used as workpiece materials. The highest cutting forces were measured for the coated tool with the highest thickness of the diamond coating. Probably, roughness increase and non-optimal edge profiles affect the tool behavior during cutting. As a consequence, tool failure was observed in the case of milling of ceramic by means of the coated tool with the highest coating thickness. The coated tool with a lower thickness of the diamond coating showed an optimal behavior under cutting, above all in the case of PMC milling.
2008
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore ING-IND/16 - TECNOLOGIE E SISTEMI DI LAVORAZIONE
English
Con Impact Factor ISI
Ceramic materials; Chemical vapor deposition; Cladding (coating); Coatings; Diamond cutting tools; Diamond deposits; Metallic matrix composites; Milling (machining); Surface roughness; Thickness measurement; Coated tools; Coating thicknesses; Cutting force; Cutting forces; CVD; CVD diamonds; Dental applications; Diamond; Diamond coatings; Diamond deposition; Hot-filament CVD; Milling; Milling tests; Milling tools; Polymeric matrices; Roughness; Tool failures; Work piece material; Diamonds
Quadrini, F., Tagliaferri, V., Polini, R. (2008). Effect of coating roughness on performance of small CVD diamond coated tools. MACHINING SCIENCE AND TECHNOLOGY, 12(3), 390-404 [10.1080/10910340802292084].
Quadrini, F; Tagliaferri, V; Polini, R
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/53999
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