二維編織復合材料在正交切削中的切削力和加工表面質(zhì)量研究
發(fā)布時間:2018-03-21 22:21
本文選題:二維編織碳纖維復合材料 切入點:正交切削 出處:《玻璃鋼/復合材料》2017年12期 論文類型:期刊論文
【摘要】:二維編織碳纖維復合材料因其具有優(yōu)異的力學性能和耐疲勞、耐沖擊等特點被廣泛用于制造各類復合材料結(jié)構(gòu)件中。但是由于二維編織碳纖維復合材料的多相性和特殊的纖維結(jié)構(gòu),其機械加工性能與傳統(tǒng)金屬材料和單向纖維復合材料差異較大。為了研究二維編織碳纖維復合材料的切削性能,提高加工效率和加工后的表面質(zhì)量,基于正交切削實驗對二維編織碳纖維復合材料在切削過程中的切削力進行測試,并利用金相顯微鏡和粗糙度輪廓儀來表征加工表面質(zhì)量。實驗結(jié)果顯示,正交切削過程中纖維方向角度對切削力的大小影響巨大,當切削速度提高和切削深度降低時,復合材料展現(xiàn)了更好的切削性能,并且加工后的表面質(zhì)量更高。
[Abstract]:Two-dimensional braided carbon fiber composites have excellent mechanical properties and fatigue resistance. Impact resistance and other characteristics are widely used in the manufacture of all kinds of composite structures. However, due to the multiphase and special fiber structure of two-dimensional braided carbon fiber composites, In order to study the cutting performance of two-dimensional braided carbon fiber composites and improve the machining efficiency and surface quality, the mechanical properties of the composites are different from those of traditional metal materials and unidirectional fiber composites. Based on orthogonal cutting experiment, the cutting force of two-dimensional braided carbon fiber composites in cutting process was measured, and the machined surface quality was characterized by metallographic microscope and roughness profiler. The fiber direction angle has a great influence on the cutting force in the process of orthogonal cutting. When the cutting speed is increased and the cutting depth is decreased, the composites exhibit better cutting performance and higher surface quality.
【作者單位】: 哈爾濱工業(yè)大學航天學院復合材料與結(jié)構(gòu)研究所;哈爾濱工業(yè)大學材料學院;
【分類號】:TB332
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本文編號:1645824
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