Abstract:

Polymer materials are preferred in various industrial areas such as automotive, manufacturing, aeronautic etc. and their material properties are improved by reinforcing carbon black, carbon fiber, graphite, carbon nanotubes, metal oxides etc. to enhance their usage areas. Additionally, in application areas, drilling operations are required for assembly processes. Therefore, in this experimental study, drill tool flank wear was investigated in drilling of pure and carbon black reinforced HDPE (High Density Polyethylene) materials. In experiments, two cutting speeds, feeds, and drill point angles (120° and 80°-120°) were selected as drilling parameters. Depending on the results, drill tool flank wear increased with increase of cutting speed and decreased with increase of feed. The maximum tool wear values were measured in drilling with standard drill tools (120°) and the double-angled (80°-120°) drill tool design reduced the tool wear. In addition, the carbon black addition improved the material properties of HDPE and this caused an increase in drill tool flank wear during drilling process.

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