CAJ | 학술논문

以圆光栅玻璃为代表，建立了脆硬材料研磨加工三维瞬态温度/应力场有限元模型。在考虑了热传导、空气对流传热和热辐射的冷却作用以及工件和研磨盘的热流分配问题的条件下，研究了加工过程中，工件的转动情况对温度场分布及传递规律的影响，并对仿真结果进行了实验验证。研究结果表明：研磨加工时，摩擦热由工件与研磨盘接触面向两边以及底层传递；工件与研磨盘同向转动加工时，工件上的摩擦热由于没有在刚滑出区域堆积，分布得更加均匀；工件与研磨盘反向转动研磨加工产生的摩擦热要比同向转动加工时的要高。
이원광책파리위대표，건립료취경재료연마가공삼유순태온도/응력장유한원모형。재고필료열전도、공기대류전열화열복사적냉각작용이급공건화연마반적열류분배문제적조건하，연구료가공과정중，공건적전동정황대온도장분포급전체규률적영향，병대방진결과진행료실험험증。연구결과표명：연마가공시，마찰열유공건여연마반접촉면향량변이급저층전체；공건여연마반동향전동가공시，공건상적마찰열유우몰유재강활출구역퇴적，분포득경가균균；공건여연마반반향전동연마가공산생적마찰열요비동향전동가공시적요고。
The deformation of lapping plate is caused by the coupling action of cutting friction heat and the lapping pressure during the lapping process of brittle materials The deformation of workpiece and machined surface quality are affected by the lapping temperature at the same time Based on circular grating glass as an example the brittle materials lapping three-dimensional transient temperature stress field finite element model is established Considering the heat conduction air convection thermal radiation and the of heat flux distribution of workpiece and lapping plate the influences of the rotational situations of workpiece on temperature field distribution and transfer regulations are researched The simulation results have been experimentally demonstrated The research result shows that friction heat transfers to bottom layer and both sides from the contact surface of lapping plate and workpiece during the lapping process Without the accumulation in the zone workpiece is skidding off the lapping plate the friction heat distributed uniformly when the workpiece rotates in the same direction with the lapping plate Friction heat is generated more when the workpiece rotates in the reverse rotation with the lapping plate than it rotates in the same direction.