Affiliation:
1. Department of Mechanical Engineering, University of Alabama, Tuscaloosa, AL 35487
Abstract
Hard milling has a potential to replace finish grinding in manufacturing dies and molds. Surface finish is one key surface integrity parameter to justify the use of hard milling. In this study, a Taguchi design-of-experiment based finish milling hardened AISI H13 tool steel (50±1 HRc) with physical vapor deposition (PVD) (Ti, Al) N–TiN-coated end mill was conducted to investigate the optimal surface topography and roughness. A kinematic model of the cutting tool loci was developed to investigate the formation mechanism of the surface texture and correlate the simulated surface textures with the measured ones. The milled 3D surface topography and anisotropic roughness in the feed and step-over directions were thoroughly characterized and analyzed. The milled surface roughness Ra of less than 0.1 μm in the feed direction and 0.15 μm in the step-over direction has shown that hard milling is capable of replacing grinding as a finish or semifinish process. Furthermore, the process parameter spaces for the desired surface properties were indentified via the surface contour maps.
Subject
Industrial and Manufacturing Engineering,Computer Science Applications,Mechanical Engineering,Control and Systems Engineering
Reference24 articles.
1. Feasibility of Producing Optimal Surface Integrity by Process Design in Hard Turning;Schwach;Mater. Sci. Eng., A
2. Field, M., Koster, W. P., and Kohls, J. B., 1970, “Machining of High Strength Steels With Emphasis on Surface Integrity,” U.S. Air Force Technical Report No. AFML-TR-70-11.
3. Mechanical Property Improvement of Quenchable Steel by Grinding;Zarudi;J. Mater. Sci.
4. Tool Wear in Milling Hardened Die Steel;Nelson;ASME J. Manuf. Sci. Eng.
5. A Fuzzy Expert System for Optimizing Parameters and Predicting Performance Measures in Hard-Milling Process;Iqbal;Expert Sys. Applic.
Cited by
19 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献