Burrs are source of dimensional errors, jamming and
misalignment in the assembly process. They may cause short
circuits in electrical components and may reduce the fatigue life of the part. Furthermore, burrs can be a safety hazard to personnel because they are usually sharp. This scientific research investigates the characterization of 8 mm diameter, 120° point angle of coated drill tool in burr formation. The exit burrs were investigated using two different types of popular coatings, namely TiN and TiAlN. The effect of cutting speed and feed rate of the tool in burr formation onto the workpiece are discussed. In this study, the exit burr height was measured using optical microscope. Moderately harder material, 304L series stainless steel was used in the evaluation of the super
coatings. The experiments were conducted using CNC HAAS
Milling Machine. These experiments can be classified as hard
drilling based on the experimental values and machining
conditions.
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