中国机械工程
中國機械工程
중국궤계공정
CHINA MECHANICAl ENGINEERING
2014年
9期
1153-1157,1158
,共6页
宋铁军%周志雄%李伟%任莹晖
宋鐵軍%週誌雄%李偉%任瑩暉
송철군%주지웅%리위%임형휘
缓进给磨削%螺旋槽%磨削力比%硬质合金刀具
緩進給磨削%螺鏇槽%磨削力比%硬質閤金刀具
완진급마삭%라선조%마삭력비%경질합금도구
creep feed grinding%helical groove%grinding force ratio%carbide cemented tool
用离散化方法将砂轮看作是由一组不同直径的单位厚度薄片组成的,分析了硬质合金刀具螺旋槽缓进给成形磨削的磨削力;基于工件轴向磨削力和力矩建立了一个表征砂轮锐利程度的磨削力比数学模型。通过建立的测力系统测量了螺旋槽缓进给磨削过程中轴向磨削力和力矩,并对其信号进行了分析。在理论和实验的基础上获得了两种磨削参数下的磨削力比。研究结果表明,磨削力比可作为硬质合金刀具螺旋槽缓进给磨削过程的评价参数。
用離散化方法將砂輪看作是由一組不同直徑的單位厚度薄片組成的,分析瞭硬質閤金刀具螺鏇槽緩進給成形磨削的磨削力;基于工件軸嚮磨削力和力矩建立瞭一箇錶徵砂輪銳利程度的磨削力比數學模型。通過建立的測力繫統測量瞭螺鏇槽緩進給磨削過程中軸嚮磨削力和力矩,併對其信號進行瞭分析。在理論和實驗的基礎上穫得瞭兩種磨削參數下的磨削力比。研究結果錶明,磨削力比可作為硬質閤金刀具螺鏇槽緩進給磨削過程的評價參數。
용리산화방법장사륜간작시유일조불동직경적단위후도박편조성적,분석료경질합금도구라선조완진급성형마삭적마삭력;기우공건축향마삭력화력구건립료일개표정사륜예리정도적마삭력비수학모형。통과건립적측력계통측량료라선조완진급마삭과정중축향마삭력화력구,병대기신호진행료분석。재이론화실험적기출상획득료량충마삭삼수하적마삭력비。연구결과표명,마삭력비가작위경질합금도구라선조완진급마삭과정적평개삼수。
The grinding forces of creep feed grinding cemented carbide tool helical groove were an-alyzed by grinding wheel discretization method that the grinding wheel was regarded as composion of different elementary discs.Based on the grinding forces and torques of creep feed grinding cemented carbide tool helical groove,a mathematical model of grinding force ratio was established to describe the blunting of the diamond grains.The accurate signals of the grinding forces and torques were achieved by setting up a measurement system.The grinding force ratio was analyzed based on the mathematical model and the experimental data.The results show that the grinding force ratio can be used for grinding process evaluation.