摘要
为了精确加工2A12铝合金,探讨了化铣时间和温度对其化铣速率及表面粗糙度的影响,采用现代技术对化铣工件的力学性能进行了测试与分析。结果表明:延长非化铣部位保护胶固化时间并使保护部位向非加工面位移3~5 mm可很好地解决未化铣区域的腐蚀问题;随化铣时间的延长,化铣速率降低,且化铣温度与化铣速率呈现正相关性;化铣表面的粗糙度随化铣时间的延长而增加,随化铣温度的升高呈先减小后增加的趋势;化铣后材料的抗拉强度和屈服强度均有所提高。
In order to manufacture 2A12 aluminium wing precisely, the effects of the time and temperature on the chemical milling weight reduction process were explored. Furthermore, the mechanical properties of the workpiece after chemical milling were measured and analyzed. Results showed that prolonging the curing time of the protective adhesive and shifting the protection part to the non-machined surface by 3-5 mm could solve the corrosion problem on non-chemical milling area. With the extension of chemical milling time, the rate of chemical milling decreased and there was a positive correlation between chemical milling temperature and chemical milling speed. The surface roughness in- creased with the increase of chemical milling time. With the increase of temperature, the surface roughness of the material decreased firstly and then increased. The treatment of chemical milling increased the tensile strength and yield strength of the material to a certain extent.
作者
付明
刘群
FUMing;LIU Qun(China Airborne Missile Academy,Luoyang 471009,China)
出处
《材料保护》
CAS
CSCD
北大核心
2018年第7期100-103,共4页
Materials Protection
关键词
化学铣切
化铣速率
2A12铝合金
表面粗糙度
力学性能
chemical milling
chemical milling rate
2A12 aluminum alloy
surface roughness
mechanical properties
