Material response to particle impact during abrasive jet machining of alumina ceramics
Material response to particle impact during abrasive jet machining of alumina ceramics
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DOI：
10.1016/s0924-0136(02)00848-8
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发表时间：
2003-01-10
影响因子：
6.3
通讯作者：
Kanzaki, S
中科院分区：
文献类型：
--
作者：
Wakuda, M;Yamauchi, Y;Kanzaki, S
磨料射流加工（AJM）是喷丸加工的一种特殊形式，作为一种很有希望的结构陶瓷等硬脆材料的微细加工方法而备受关注。本文试图确定氧化铝陶瓷的材料响应的磨料颗粒的影响，在AJM过程中。三种商业磨料颗粒被用来压痕烧结氧化铝样品，它被发现，材料对颗粒的冲击响应极大地依赖于所采用的磨料。最软的磨料，氧化铝（WA），导致氧化铝表面粗糙化，但不会引起雕刻，因为缺乏对工件的磨料硬度。当使用碳化硅（GC）磨料时，可以产生相对光滑的面，主要是由于在由磨料冲击引起的高温下的延展性行为。合成金刚石（SD）磨料的撞击往往会导致大规模破碎，因此撞击表面变得粗糙。(C)2002 Elsevier Science B.V.保留所有权利。
Abrasive jet machining (AJM), a specialized form of shot blasting, attracts much attention as a hopeful micro-machining method for hard, brittle materials such as structural ceramics. The present paper attempts to identify the material response of alumina ceramics to the abrasive particle impact in the AJM process. Three kinds of commercial abrasive particles were utilized to dimple the sintered alumina samples, and it was found that the material response to particle impact depends drastically on the employed abrasives. The softest abrasive, aluminum oxide (WA), leads to roughening of the alumina surface but causes no engraving, due to the lack of the abrasive hardness against that of the workpiece. When silicon carbide (GC) abrasive is employed, a relatively smooth face can be produced, principally as a result of ductile behavior under the elevated temperature caused by the abrasive impacts. The impingement by synthetic diamond (SD) abrasive tends to cause large-scale fragmentation, and therefore the impacted surface becomes rough. (C) 2002 Elsevier Science B.V. All rights reserved.