A titanium nitride (TiN)-coated tungsten carbide indexable milling tool system was analyzed and designed using the Taguchi method. Four variables, i.e. the film thickness, cutting speed, feed rate and workpiece hardness, were considered. The results showed that the cutting speed was the most dominant variable with a percentage contribution as high as 63.50%, to the overall performance of the milling system, followed by the film thickness and the feed rate; the contribution of the workpiece hardness was so minor as to be added to the error item. The thickness of the titanium film corresponding to the optimum output performance was 7 μm. The resultant flank wear obtained for the conditions inferred from the Taguchi method achieved 20-140% improvement.
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Computer Science Applications
- Metals and Alloys
- Industrial and Manufacturing Engineering