Hardness Effects on Abrasive Flow Machining

Hardness Effects on Abrasive Flow Machining
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硬度对磨料流加工的影响

DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
Veysel Mehmed Cakir
Veysel Mehmed Cakir
中科院分区：
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文献类型：
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作者：
Kürşad Göv;O. Eyercioglu;Veysel Mehmed Cakir

文献摘要

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磨料流加工（AFM）是一种利用加压磨料介质的流动来去除工件材料的制造技术。与其它抛光技术相比，AFM具有抛光效率高、加工精度高等优点，适合于复杂内表面的抛光。本文研究了工件硬度对AFM加工过程的影响。对硬化至31、45和55 HRC的AISI D2工具钢进行了实验研究。利用电火花线切割机对试样进行切割，然后利用原子力显微镜进行精加工。结果表明，AFM在几个周期内就成功地去除了线切割过程中形成的白色层。尽管AFM对所有硬度组的表面质量都有改善，但结果表明，较硬的材料比较软的材料具有更多的表面改善。
Abrasive flow machining (AFM) is a manufacturing technique that uses the flow of a pressurized abrasive media to remove workpiece material. In comparison with other polishing technique, AFM is very efficient, suitable for the finishing of complex inner surfaces. In this paper, the effect of workpiece hardness on the AFM process has been investigated. An experimental study was carried out on AISI D2 tool steel hardened to 31, 45 and 55 HRC. The specimens were cut by using wire electro discharge machining (WEDM) and then finished with AFM. The results show that the white layer formed during WEDM is successfully removed by AFM in a few cycles. Although the surface quality is improved by AFM for all hardness groups, the results show that harder materials have more surface improvement than the softer ones.