通过喷淋蚀刻实验研究了模具钢微细蚀刻加工时,工件掩膜间隙、蚀刻液喷淋压力和加工时间对蚀刻深度的影响.蚀刻深度随掩膜间隙的蚀刻尺寸、加工时间的增加而增大,随蚀刻液喷淋压力的增大呈先增大后减小趋势.这归因于掩膜间隙和蚀刻液喷淋压力的增大加快了蚀刻液的更新,使蚀刻反应充分并有利于反应杂质的排除.但是过大的喷淋压力减小了蚀刻液驻留时间,阻碍了蚀刻深度的增加.
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