即使不考虑体积及成本的情况下,传统的对比相减式加工流程技术也能完成这些工作,比如切割,机钻等。
However GE, a large American conglomerate, is now proposing to make ultrasoundtransducers by additive manufacturingor three-dimensional printing, as it is also known.
而GE作为美国的一个庞大的企业集团正考虑采用对比添加式的加工流程来加工超声波压电式换能器。
A new laboratory at the firms research centre in Niskayuna, New York, is taking ahard-headed look at the technique, which some see as a fad and others as the future, andworking out which products might be made more efficiently by addition rather thansubtraction.
GE在纽约 Niskayuna地区的研发中心新成立了一个实验室,目前该实验室正本着理性实际的态度对该项技术进行研发,力图找到哪些产品用对比添加式而非对比相减式的技术流程加工生产更加适合。一些人认为,对该项技术的研发只不过是一时狂热。还有一些人声称,目前的时机并不成熟,对该项技术的研发仅仅具有将来时的意义罢了。
Ultrasound transducers were an early pick both because of the complicated geometryneeded to focus the sound waves and because ceramics are harder than metals to cut anddrill accurately.
最初选择超声波压电式换能器来作为3D印刷术的对象原因有两点。一是该换能器用来聚焦声波的机体外形非常复杂,二是它用到的陶瓷材料比金属的硬度要高很多,很难进行精准地切割和机钻。
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