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APPLICATION OF ABRASIVE-WATERJET FOR 3D MACHINING

机译:磨料磨浆机在3D加工中的应用

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Abrasive-waterjet (AWJ) is inherently not suitable for complex 3D machining because of thedifficulty in capturing the spent abrasives in a three-dimensional space. The spent abrasives stillpossess considerable residue cutting power that is not only capable of damaging the targetworkpiece but also a potential safety hazard to the operators. Designing an optimum catcher for a3D AWJ system to mitigate damage to the target workpiece with complex 3D features is nearlyimpossible. Although there are commercial multi-axis 3D AWJ systems, they are only limited tomachining relatively simple 3D parts. On the other hand, AWJ is amenable to 3D machining.Approaches to take advantage of the 3D machining capability of AWJ while operating within thelimitations of safety are discussed in this paper. Generally, the approaches can be divided into twomain categories, those with and those without the requirement of added accessories, respectively.For the approach requiring no additional accessories, the workpieces have to be cut multiple timesat different orientations or rely on secondary processes to transform them from 2D to 3D shapes.For a number of applications, special accessories were designed to be mounted on the 2D AWJplatform to facilitate 3D machining. PC-based control software was developed to control theoperations of these accessories for automation. Machining processes based on these approacheswere developed to facilitate 3D machining using a 2D AWJ platform such that the spent abrasiveswere always shooting in a generally downward direction toward the machine's water tank. Bycombining more than one accessory, 3D parts with very complex features can be readily machined.Sample 3D parts machined with the above processes are presented to demonstrate the versatility andadvantages of AWJ 3D machining.
机译:磨料水射流(AWJ)本质上不适合复杂的3D加工,因为 难以在三维空间中捕获废磨料。用过的磨料仍然 具有相当大的残渣切割能力,不仅能够破坏目标 工件,但也对操作员造成安全隐患。设计一个最佳的捕手 3D AWJ系统几乎可以减轻具有复杂3D功能的目标工件的损坏 不可能的。尽管有商用多轴3D AWJ系统,但它们仅限于 加工相对简单的3D零件。另一方面,AWJ适用于3D加工。 在AWJ内操作时利用AWJ的3D加工能力的方法 本文讨论了安全性局限性。通常,这些方法可以分为两种 主要类别,有和没有附加附件要求的类别。 对于不需要额外附件的方法,必须多次切割工件 以不同的方向或依靠辅助过程将其从2D形状转换为3D形状。 对于许多应用,设计了特殊的附件以安装在2D AWJ上 方便3D加工的平台。开发了基于PC的控制软件来控制 这些附件用于自动化操作。基于这些方法的加工过程 开发用于使用2D AWJ平台进行3D加工,以使废磨料 总是朝着机器的水箱大体朝下的方向射击。经过 结合了多个配件,可以轻松加工具有非常复杂功能的3D零件。 展示了使用上述过程加工的示例3D零件,以展示其多功能性和 AWJ 3D加工的优势。

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