加工参数对热柱蒸发端微沟槽形貌的影响  

Influence of Machining Parameters on Groove Surface Morphology of Evaporator

作　　者：陶素连[1] 周钦河[1] 

机构地区：[1]广东水利电力职业技术学院机械工程系,广州510925

出　　处：《科学技术与工程》2013年第20期5796-5800,5805,共6页Science Technology and Engineering

基　　金：国家自然科学基金项目(50930005);广东省自然科学基金项目(U0834002)资助

摘　　要：犁切挤压加工的微沟槽具有很好的强化沸腾及冷凝效果。提出了热柱蒸发端微沟槽加工的实验过程,建立了犁切挤压刀具加工微沟槽的有限元模型。利用deform软件模拟犁切挤压刀具加工热柱蒸发端的正交微沟槽,分析了微沟槽的成形机理。结果表明犁切挤压深度和进给量对微沟槽表面形貌有很大的影响。在加工环状沟槽时表面形成了U形沟槽及V形沟槽。最后加工径向沟槽时表面形成了正交的中间凹陷四周隆起的微沟槽。Micro-grooves manufactured by ploughing-extrusion have good enhancement boiling and condensing performance. Experiment maching process is presented for micro-groove of evaporator for heat column in the paper. The process is simulated by deform software that plough-extrusion tool processes evaporator, forming mechanism of micro-groove is analyzed. Results show that the plough-extrusion depth and feed rate have great influence on microgroove surface morphology. two kinds of grooves, which are V-shaped and U-shaped, generate on the surface of evaporator when ringed groove is machined; orthotropic grooves depressed at center and arched around generate on the surface when radial grooves are machined finally.

关 键 词：热柱 微沟槽 犁切挤压 有限元 

分 类 号：TN305.94[电子电信—物理电子学] TG506[金属学及工艺—金属切削加工及机床]