Overview
People
Sponsors
Projects
Publications
Journal
MS Theses
PhD Dissertations
Laboratories
Links
Brochure
Home |
Title:
An Experimental and Theoretical Study of the Cutting Edge Effects in Dry Turning of Aluminum Alloys with Diamond Tools
PI: I.S. Jawahir
Graduate Student: S. Chen
Abstract
Three different kind of tool inserts (Diamond Coated, Diamond Like cobalt coated, and uncoated carbide) with five different cutting edges radii (<5 μm, ~25 μm, ~50 μm, ~75 μm and ~100 μm ) under a wide range of cutting conditions were tested for finish dry turning of automotive aluminum alloy A356. Machining performance comparison in dry turning of automotive A356 among Diamond Coated, Diamond-like Cobalt Coated, and Uncoated Carbide tool inserts was conducted. The effects of cutting edge configuration, both in size and shape, on: (i) cutting forces; (ii) chip forms/chip breakability; and (iii) surface roughness were studied. An analytical method for predicting machining performance was developed by considering both the effects of coating and cutting edge configuration. It is hoped that the outcome of this study can serve as guidelines for improving diamond tool insert design, manufacture and coating processes.
|
Feed (mm/rev) |
0.1219 |
0.0914 |
0.0610 |
0.0305 |
Diamond-like Cobalt Coated |
Chip pattern |
 |
 |
 |
 |
Surface |
 |
 |
 |
 |
Diamond Coated |
Chip pattern |
 |
 |
 |
 |
Surface |
 |
 |
 |
 |
Uncoated Carbide |
Chip pattern |
 |
 |
 |
 |
Surface |
 |
 |
 |
 |
• Back to Current Projects •
|
