Proceedings of the Korean Society of Machine Tool Engineers Conference (한국공작기계학회:학술대회논문집)
- 2003.04a
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- Pages.149-154
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- 2003
A Study on the Cutting Surfaces in CNC Plasma Cutting of high tensile steel plate
고장력 강판의 CNC Plasma 절단시 절단면에 관한 연구
Abstract
The cutting tests of high tensile steel plate(AH36) were carried out using CNC plasma arc cutting machine. Both top and bottom width of kerf and the surface roughness(Ra, Rmax) of cut surface are measured under various cutting conditions such as cutting speed, steel plate thickness, etc. In the CNC plasma arc cutting, the surface roughness decreases as cutting speed increases. The hardness is high up to 4mm depth from the cutting surface. In the cutting speed 1300~2100mm/min, the ratio of proper kerf width(Wt/Wb) is around 2.6. Through the series the series of experiments, the satisfactory cutting conditions of high tensile steel plate were found.
Keywords
- Cutting speed;
- Kerf width;
- CNC plasma arc cutting machine;
- Top and bottom width of kerf;
- Surface roughness;
- Distance between tip and specimen
- 친절단속도;
- 절단폭;
- CNC 플라즈마절단기;
- 절단홈의 위와 아래폭;
- 표면거칠기;
- 팁과 모재와의거리;