中国机械工程
中國機械工程
중국궤계공정
CHINA MECHANICAl ENGINEERING
2012年
2期
142-145,207
,共5页
金属切削%月牙洼磨损模型%磨损轮廓%刀屑交界面温度
金屬切削%月牙窪磨損模型%磨損輪廓%刀屑交界麵溫度
금속절삭%월아와마손모형%마손륜곽%도설교계면온도
metal cutting%crater wear model%wear profile%temperature on tool-- chip interface
刀具的前刀面月牙洼磨损和后刀面磨损在刀具磨损的研究中占据同等地位，但月牙洼磨损轮廓和刀屑交界面上的切削过程变量不易测量等因素，导致真正依据月牙洼磨损测试获取月牙洼磨损模型的研究非常少。基于硬质合金刀具切削低碳钢的月牙洼磨损实验，提出了一个经验磨损模型。该模型综合了黏结磨损和扩散磨损，考虑了刀屑交界面温度和压力对月牙洼磨损的影响。研究结果表明，该模型能够分析并预测相似切削条件下的月牙洼磨损轮廓。
刀具的前刀麵月牙窪磨損和後刀麵磨損在刀具磨損的研究中佔據同等地位，但月牙窪磨損輪廓和刀屑交界麵上的切削過程變量不易測量等因素，導緻真正依據月牙窪磨損測試穫取月牙窪磨損模型的研究非常少。基于硬質閤金刀具切削低碳鋼的月牙窪磨損實驗，提齣瞭一箇經驗磨損模型。該模型綜閤瞭黏結磨損和擴散磨損，攷慮瞭刀屑交界麵溫度和壓力對月牙窪磨損的影響。研究結果錶明，該模型能夠分析併預測相似切削條件下的月牙窪磨損輪廓。
도구적전도면월아와마손화후도면마손재도구마손적연구중점거동등지위，단월아와마손륜곽화도설교계면상적절삭과정변량불역측량등인소，도치진정의거월아와마손측시획취월아와마손모형적연구비상소。기우경질합금도구절삭저탄강적월아와마손실험，제출료일개경험마손모형。해모형종합료점결마손화확산마손，고필료도설교계면온도화압력대월아와마손적영향。연구결과표명，해모형능구분석병예측상사절삭조건하적월아와마손륜곽。
Tool crater wear and flank wear are dominant for cutting tool performance in metal cut ting. However, researches on tool crater wear model based on crater wear tests are rare, because crater wear profile and cutting process variables are difficult to measure. This paper proposed an empirical crater wear model, which involved adhesive wear and diffusion wear. Temperature and pressure distri- bution on tool--chip interface were considered in this model. The results give good prediction to crater wear profile under similar cutting conditions.
