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中文English

超聲波焊接原理

“超聲波”鑽孔加工的應用原理

一個工件受到直接的錘擊作用，工件只會在表面造成損傷，而事實上，材料並沒有被除去。材料移除的方法之一是依靠剪切應力，而施加切向的應力。通常采用粉磨料與超聲波縱向振動相配合的工具頭進行超聲波檢測。在使用過程中，磨料將工件表面的應力分散到四面。它們的切線成分是影響工件材料去除的主要因素。此外，磨料懸浮液的聲空化效應對加工也有一定影響，這就是超聲波加工原理。

對于某些性能硬而脆的固體材料(如玻璃、紅寶石、金剛石、陶瓷、石英、玉石、矽片等)進行加工鑽孔，用機械加工方法是很困難的，使用超聲波可以在這些材料上加工任何形狀的孔。將超聲波換能器焊接在磁致伸缩式超聲波換能器上，使超声能量集中到加工工具的末端，这样就可以用很少的能量达到破坏材料的要求。

手持焊打孔

聚能装置顶部有一个工具头，其工具头形状是在材料上加工的模型，在工作时，材料表面加水与磨料的混合液(磨料一般有硬度较大的金刚砂、碳化硼、碳化硅等)，在超声发生器的作用下进行超声振动，通过聚能器推动工具头的高速超声波振动，猛烈的超声波振动向润湿的磨料(金刚砂)施加切向的应力，从而磨料將工件表面的应力向四面分散，从而发生空化现象，这种现象产生巨大压力，并迅速破坏材料表面,这种情况下材料表面將留下想要的形状。

超聲波研磨抛光模具的原理及類型

超聲波模具改短後還可以使用嗎？

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