W-Mo合金精密镜面加工工艺的实验研究  

Research on precision mirror machining technology for W-Mo alloy

作　　者：关佳亮[1] 肖小华[1] 吴衍才[1] 孙志杰[1] 舒行军[2] 

机构地区：[1]北京工业大学机电学院,北京100124 [2]中国工程物理研究院机械制造工艺研究所,绵阳621900

出　　处：《金刚石与磨料磨具工程》2010年第3期6-9,共4页Diamond & Abrasives Engineering

基　　金：国家自然科学基金委员会-中国工程物理研究院联合基金资助项目(10676001)

摘　　要：为了研究W-Mo合金材料精密加工的新途径,采用在线电解修整（ELID）精密磨削和超精密研抛技术,对其进行了精密镜面加工实验,分析了此材料超精密镜面表面的形成机理。通过ELID磨削加工得到了表面粗糙度Ra0.020μm加工表面,再以研抛压力为0.1-0.3 N/cm^2,转速为60-100 r/min等优化研抛参数进行研抛加工,获得了表面粗糙度为Ra0.012μm精密镜面加工表面。实验表明：ELID精密磨削加工是保证工件表面质量的基础,超精密机械研抛时研抛压力及转速等参数对工件表面质量起主要影响作用。In order to find a new way for mirror precision machining of W-Mo alloy,precision grinding and ultra precision lapping experiments were conducted using electrolytic in-process dressing（ELID） technique.The generating mechanism of the mirror precision grinding of W-Mo alloy was analyzed.A surface roughness of Ra 0.020μm was obtained after ELID precision grinding.Then,at the optimized parameters such as lapping pressure 0.1～0.3 N/cm^2 and rotational speed 60～100 r/min,a mirror precision surface roughness of Ra 0.012 μm was achieved.The results proved that ELID technique guaranteed the machined surface quality,and the lapping pressure as well as the rotational speed were the main influencing factors during ultra precision lapping.

关 键 词：W-Mo合金 ELID磨削 精密研抛 表面粗糙度 

分 类 号：TG58[金属学及工艺—金属切削加工及机床]