典型文献
Interference mechanism and damage accumulation in high-speed cross scratches on hard brittle materials
文献摘要：
Precision and low damage grinding of aviation optical elements can effectively improve the overall processing efficiency.The mechanism of high-speed cross scuffing of multiple abrasive particles has become an important factor affecting the forming quality of workpiece.Interaction of abrasive trajectory determines machined surface and subsurface morphology and damage.According to the relative motion trajectory of wear particles on the workpiece surface,a theoretical model of the trochoidal trajectory intersection angle is proposed.High-speed scratches with differ-ent cross angles are experimentally obtained to explore the interference mechanism and damage accumulation of cross scratches.The results indicate that the Crack system Ⅰ and Crack systemⅡ,produced by the two cross scratches,are mainly based on the stress principle and the strength principle,respectively.An increase in the damage radius is observed with a decrease in the crossing angle.Furthermore,as the duration of the normal cutting force decomposition curve at the entrance/exit of the intersection increases,the half-peak width also increases.The accumulation of cross-scratch damage promotes the propagation of deep subsurface lateral and median cracks.In other words,damage accumulation and interference mechanism formed by the cross scratches increase the longitudinal depth and lateral length of the damage.
文献关键词：
中图分类号：
作者姓名：
Feifei ZHAO;Bin LIN;Yuanping HE;Tianyi SUI
作者机构：
Key Laboratory of Advanced Ceramics and Machining Technology,Ministry of Education,Tianjin University,Tianjin 300350,China
文献出处：
引用格式：
[1]Feifei ZHAO;Bin LIN;Yuanping HE;Tianyi SUI-.Interference mechanism and damage accumulation in high-speed cross scratches on hard brittle materials)[J].中国航空学报（英文版）,2022(03):579-591
A类：
scuffing,trochoidal
B类：
Interference,mechanism,damage,accumulation,high,speed,scratches,hard,brittle,materials,Precision,low,grinding,aviation,optical,elements,can,effectively,improve,overall,processing,efficiency,multiple,abrasive,particles,has,become,important,affecting,forming,quality,workpiece,Interaction,trajectory,determines,machined,subsurface,morphology,According,relative,motion,wear,theoretical,model,intersection,proposed,High,differ,angles,are,experimentally,obtained,explore,interference,results,indicate,that,Crack,system,produced,by,two,mainly,stress,principle,strength,respectively,An,radius,observed,decrease,crossing,Furthermore,duration,normal,cutting,force,decomposition,curve,entrance,exit,increases,half,peak,width,also,promotes,propagation,deep,lateral,median,cracks,other,words,formed,longitudinal,depth,length
AB值：
0.531735
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