In order to commercialize large diameter PP pipes, the cutting work was attempted with the cutting machine (∅18″and AL120 cutter, 2100 r.p.m) used for the conventional PE or PVC pipe(∅1200 mm, t 70), but the cutting work was failed because the material of “PP pipe” melted and sticked to the surface of the wheel-cutter. In order to find the optimal structure and number of blades for wheel-cutters, an experimental investigation the temperature measurement of specimen and wheel-cutter and the visualization of cutted specimen surface and chip shape were carried out during and after experiment. In addition, modelings for cutting and heat transfer mechanisms have been developed for theoretical analysis. The theoretical and experimental results were in good agreement. The results show that the appropriate structure and the rotational speed of wheel-cutter are W60 and 650 rpm for the large diameter PP pipe cutting machine.

ABSTRACT
1. 서 론
    1.1 국내·외 연구 동향
2. 실험 및 방법
    2.1 실험장치
    2.2 실험 방법
3. 실험결과 및 고찰
    3.1 시편 절단면과 칩 형태 촬영 결과
    3.2 시편측면, 휠 커터 날 및 절단 시편 온도
    3.3 PP와 PE 파이프 절단 융착 현상 고찰
4. 결 론
References

• 엄용균(Andong National University.) | Yong-Kyoon Eom Corresponding Author