| 单词 |
ultrasonic machining |
| 释义 |
ultrasonic machining ultrasonic machining[¦əl·trə′sän·ik mə′shēn·iŋ] (mechanical engineering) The removal of material by abrasive bombardment and crushing in which a flat-ended tool of soft alloy steel is made to vibrate at a frequency of about 20,000 hertz and an amplitude of 0.001-0.003 inch (0.0254-0.0762 millimeter) while a fine abrasive of silicon carbide, aluminum oxide, or boron carbide is carried by a liquid between tool and work. |
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