Nomura Mamoru, Kurashige Shuji, Ito Yukio, Fukuhara Yoshiya, Sasahara Hiroyuki
Department of Mechanical Systems Engineering, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan.
IBARAKI GRINDING WHEEL Co., Ltd., Ibaraki 300-2521, Japan.
Materials (Basel). 2023 Jul 26;16(15):5247. doi: 10.3390/ma16155247.
Carbon fiber reinforced plastic (CFRP) is used in various industries because of its high specific strength, but it is well known as a difficult material to cut. In this study, we developed a disc-shaped electrodeposited diamond wire mesh grinding wheel as a new method for cutoff and grooving with a large aspect ratio for CFRP. We confirmed that this tool could be used for machining at a feed rate of 1000 mm/min, equivalent to that of an abrasive waterjet. This tool discharges generated chips through the spaces in the wire mesh, preventing clogging and thereby enabling the suppression of machining temperature. No burrs or delamination were observed on the surface machined with the wire mesh grinding wheel, and the surface roughness was = 2.76 µm. However, the groove width was larger than the wheel thickness due to the runout of the wheel. Additionally, the moderate elasticity and durability of the tool suggest that it might extend tool life by avoiding the crushing of abrasive grains.
碳纤维增强塑料（CFRP）因其高比强度而被广泛应用于各个行业，但众所周知它是一种难以切割的材料。在本研究中，我们开发了一种圆盘形电沉积金刚石丝网砂轮，作为一种用于CFRP大长宽比切断和开槽的新方法。我们证实，该工具可以以1000毫米/分钟的进给速度进行加工，这与磨料水刀的进给速度相当。该工具通过丝网中的空间排出产生的切屑，防止堵塞，从而能够抑制加工温度。在用丝网砂轮加工的表面上未观察到毛刺或分层，表面粗糙度为 = 2.76 µm。然而，由于砂轮的跳动，槽宽大于砂轮厚度。此外，该工具适度的弹性和耐用性表明，它可能通过避免磨粒破碎来延长刀具寿命。
