SiCp/Al窄槽的铣磨实验研究(Ⅰ)——磨削力  

Experimental research on mill-grinding SiCp/Al narrow slot part I: machining force

作　　者：李建广[1] 姚英学[1] 赵航[1] 李大博[1] 

机构地区：[1]哈尔滨工业大学机电工程学院,哈尔滨150001

出　　处：《哈尔滨工业大学学报》2012年第7期43-46,共4页Journal of Harbin Institute of Technology

基　　金：教育部博士点基金资助项目(200802130006);哈尔滨市科技创新人才研究专项基金资助(RC2010XK006003)

摘　　要：针对SiCp/Al复杂曲面加工中大去除量、高精度的需求,以窄槽的铣磨加工工艺为例,实验研究SiCp/Al窄槽铣磨加工中加工参数、铣磨工具对铣磨力的影响规律.实验结果表明:加工参数和铣磨工具均对铣磨力有影响.在实验参数取值范围内,铣磨力随砂轮线速度、进给速度的增大而增大,进给速度对铣磨力的影响最大;采用螺旋槽铣磨工具可显著降低铣磨力,但铣磨力波动较大,并随螺旋角的增大而减弱.在实验条件下,可优选铣磨力波动相对较小的50°螺旋角的开槽砂轮进行窄槽的粗加工.To meet the need of large removal allowance and high efficiency of machining SiCp/Al surface,taking narrow slot mill-grinding as a typical example,the influence of machining parameters and mill-grinding tool on SiCp/Al machining force was experimentally investigated.The results show that the mill-grinding force is increased with the increasing speed and feedrate,and the feedrate is a significant impact on the force.In machining narrow-slot,the mill-grinding force can be reduced obviously by using the grinding tool with helix flutes.However,the mill-grinding force is fluctuant,and the fluctuant amplitude is reduced by reducing helix.Under the given conditions,the recommended helix of the wheel with flutes in mill-grinding narrow-slot is 50° which can perform a relative stabile machining process.

关 键 词：碳化硅颗粒增强铝基复合材料 铣磨 切削力 加工参数 铣磨工具 

分 类 号：TG506.9[金属学及工艺—金属切削加工及机床]