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首页> 美国卫生研究院文献>Heliyon >Retrofitting ancient timber glulam mortise tenon construction joints through computer-aided laser cutting
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Retrofitting ancient timber glulam mortise tenon construction joints through computer-aided laser cutting

机译：通过计算机辅助激光切割翻新古胶合木榫榫结构缝

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摘要

This study is aimed to rationalise and demonstrate the efficacy of utilising laser cutting technique in the fabrication of glulam mortise & tenon joints in timber frame. Trial-and-error experiments aided by laser cutter were conducted to produce 3D timber mortise & tenon joints models. The two main instruments used were 3D modelling software and the laser cutter TH 1390/6090. Plywood was chosen because it could produce smooth and accurate cut edges whereby the surface could remain crack-free, and it could increase stability due to its laminated nature. Google SketchUp was used for modelling and Laser CAD v7.52 was used to transfer the 3D models to the laser cutter because it is compatible with AI, BMP, PLT, DXF and DST templates. Four models were designed and fabricated in which the trial-and-error experiments proved laser cutting could speed up the manufacturing process with superb quality and high uniformity. Precision laser cutting supports easy automation, produces small heat-affected zone, minimises deformity, relatively quiet and produces low amount of waste. The LaserCAD could not process 3D images directly but needed 2D images to be transferred, so layering and unfolding works were therefore needed. This study revealed a significant potential of rapid manufacturability of mortise & tenon joints with high-quality and high-uniformity through computer-aided laser cutting technique for wide applications in the built environment.
机译：这项研究的目的是合理化和证明利用激光切割技术制造木框胶合榫眼榫的功效。在激光切割机的帮助下进行了反复试验，以制作3D木材榫眼榫连接模型。使用的两个主要仪器是3D建模软件和激光切割机TH 1390/6090。选择胶合板是因为它可以产生光滑而准确的切割边缘，从而使表面保持无裂纹，并且由于其层压性质而可以增加稳定性。使用Google SketchUp进行建模，并使用Laser CAD v7.52将3D模型转移到激光切割机上，因为它与AI，BMP，PLT，DXF和DST模板兼容。设计和制造了四个模型，其中反复试验证明，激光切割可以以卓越的质量和高度的均匀性加快制造过程。精密的激光切割支持轻松的自动化，产生小的热影响区，最大程度地减少变形，相对安静，并产生少量废料。 LaserCAD无法直接处理3D图像，但需要传输2D图像，因此需要分层和展开工作。这项研究显示了通过计算机辅助激光切割技术可快速制造高质量，高均匀性的榫眼榫的巨大潜力，可广泛应用于建筑环境中。

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