红外与激光工程
紅外與激光工程
홍외여격광공정
INFRARED AND LASER ENGINEERING
2014年
6期
1755-1760
,共6页
许兆美%刘永志%周建忠%蒋素琴%王庆安%汪通悦%洪宗海
許兆美%劉永誌%週建忠%蔣素琴%王慶安%汪通悅%洪宗海
허조미%류영지%주건충%장소금%왕경안%왕통열%홍종해
生死单元%陶瓷%激光铣削%数值模拟
生死單元%陶瓷%激光鐉削%數值模擬
생사단원%도자%격광선삭%수치모의
birth- death elements%ceramics%laser milling%numerical simulation
利用ANSYS有限元模拟软件建立了激光铣削过程的三维瞬态有限元模型,并以Al2O3陶瓷材料的激光铣削加工为例,利用ANSYS中的"单元生死"技术对激光铣削过程中温度场的动态分布进行了模拟。选取其中的一组参数,详细分析了铣削件表面某一点温度场的变化规律,确定了沿样件不同的扫描路线上铣削层的宽度和深度,并提出了温度场模拟结果的间接验证方法,即将温度场模拟获得的铣削层宽度和深度与实验测得的数据进行对比,对比结果较吻合,说明建立的有限元模型能够进行激光铣削效果的预测。
利用ANSYS有限元模擬軟件建立瞭激光鐉削過程的三維瞬態有限元模型,併以Al2O3陶瓷材料的激光鐉削加工為例,利用ANSYS中的"單元生死"技術對激光鐉削過程中溫度場的動態分佈進行瞭模擬。選取其中的一組參數,詳細分析瞭鐉削件錶麵某一點溫度場的變化規律,確定瞭沿樣件不同的掃描路線上鐉削層的寬度和深度,併提齣瞭溫度場模擬結果的間接驗證方法,即將溫度場模擬穫得的鐉削層寬度和深度與實驗測得的數據進行對比,對比結果較吻閤,說明建立的有限元模型能夠進行激光鐉削效果的預測。
이용ANSYS유한원모의연건건립료격광선삭과정적삼유순태유한원모형,병이Al2O3도자재료적격광선삭가공위례,이용ANSYS중적"단원생사"기술대격광선삭과정중온도장적동태분포진행료모의。선취기중적일조삼수,상세분석료선삭건표면모일점온도장적변화규률,학정료연양건불동적소묘로선상선삭층적관도화심도,병제출료온도장모의결과적간접험증방법,즉장온도장모의획득적선삭층관도화심도여실험측득적수거진행대비,대비결과교문합,설명건립적유한원모형능구진행격광선삭효과적예측。
A three- dimensional transient state finite element model of the temperature field of laser milling has been established based on ANSYS software. As an example, Al2O3 ceramic material has been milled by laser to simulate the temperature field. The dynamic distribution of the temperature field was simulated during the laser milling process. A group data were chosen to analyze the change orderliness of the temperature on the sample surface. The milling width and depth were determined along different scanning route. An indirect verification method was put forward to test the result of the simulation. The milling layer width and depth of the temperature simulation were compared with the experimental data. The result shows all the data can be coincided, which show the finite element model can predict the effect of laser milling.