Fabrication and Cutting Performance of Ultrafine Grain Composite Diamond Coated Drills

Yu Ping Ma; Gen Fu Yuan; M. Chen

doi:10.4028/www.scientific.net/AMR.188.387

Paper Titles

Finite Element Method Modeling Approaches in Grinding
p.368

Finite Element Method Simulation of Drilling Process on Metal-Matrix Composites
p.372

Research on Fabrication Technology and Hydraulic Performance of Multi-Point Gear Flow Dividers
p.376

Simulation of Residual Stress in Ultrasonic Vibration Assisted Micro-Milling
p.381

Fabrication and Cutting Performance of Ultrafine Grain Composite Diamond Coated Drills
p.387

High Speed Machining of Particulate Reinforced Metal Matrix Composites with PCD Tools
p.392

Aeroacoustic Performance Evaluation of Milling Cutters Based on the Flow Field on the Cutter Surface
p.398

Cutting Force Prediction for Generalized Cornering Milling Process
p.404

Experimental Investigation on Tool Wear when End-Milling Inconel 718 with Coated Carbide Inserts
p.410

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 188Fabrication and Cutting Performance of Ultrafine...

Fabrication and Cutting Performance of Ultrafine Grain Composite Diamond Coated Drills

Abstract:

Ultrafine grain composite diamond films are deposited on the WC-Co-based drills using a bias-enhanced hot filament CVD system. During the deposition, the spiral hot filaments and novel two-step pretreatment method for complicated shape tools are adopted. The composite structure is achieved by regulating the concentration of Ar in a mixture of acetone and a hydrogen gases at different stages. The surface morphologies and composition of the first fabricated microcrystalline diamond film and the ultrafine grain diamond film grown later are observed with different techniques. The composite films have the advantages of good adhesive strength and low surface roughness. The cutting performance of the composite diamond-coated drills is investigated by drilling SiC particles reinforced aluminum matrix composites. The drilling life is improved greatly compared with those of uncoated drills and microcrystalline diamond coated drills.

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Periodical:

Advanced Materials Research (Volume 188)

Pages:

387-391

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.188.387

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Online since:

March 2011

Authors:

Yu Ping Ma, Gen Fu Yuan, M. Chen

Keywords:

Cutting Performance, Diamond Film, Machining Quality, Ultrafine Grain Composite Diamond Coated Drill

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