机床与液压
機床與液壓
궤상여액압
MACHINE TOOL & HYDRAULICS
2014年
13期
44-47
,共4页
陶瓷刀具%切削性能%抗磨损能力%磨损机制%磨损形态
陶瓷刀具%切削性能%抗磨損能力%磨損機製%磨損形態
도자도구%절삭성능%항마손능력%마손궤제%마손형태
Ceramics tool%Cutting performance%Wear resistance%Wear mechanism%Wear pattern
研究新型陶瓷刀具A15Zc和A20Z（c＋m）切削淬硬40Cr合金钢时的切削性能，并与已经商业化的陶瓷刀具SG4的切削性能进行了对比。结果表明：刀具后刀面磨损量随切削深度的增加而增大，而切削速度对刀具后刀面磨损量的影响较小；在较小的切削深度下切削时刀具具有良好的切削性能，A15Zc和A20Z（c＋m）的抗磨损能力都好于SG4刀具；刀具的主要磨损形态为前后刀面磨损，主要磨损机制为前刀面的黏结磨损和后刀面的磨粒磨损。
研究新型陶瓷刀具A15Zc和A20Z（c＋m）切削淬硬40Cr閤金鋼時的切削性能，併與已經商業化的陶瓷刀具SG4的切削性能進行瞭對比。結果錶明：刀具後刀麵磨損量隨切削深度的增加而增大，而切削速度對刀具後刀麵磨損量的影響較小；在較小的切削深度下切削時刀具具有良好的切削性能，A15Zc和A20Z（c＋m）的抗磨損能力都好于SG4刀具；刀具的主要磨損形態為前後刀麵磨損，主要磨損機製為前刀麵的黏結磨損和後刀麵的磨粒磨損。
연구신형도자도구A15Zc화A20Z（c＋m）절삭쉬경40Cr합금강시적절삭성능，병여이경상업화적도자도구SG4적절삭성능진행료대비。결과표명：도구후도면마손량수절삭심도적증가이증대，이절삭속도대도구후도면마손량적영향교소；재교소적절삭심도하절삭시도구구유량호적절삭성능，A15Zc화A20Z（c＋m）적항마손능력도호우SG4도구；도구적주요마손형태위전후도면마손，주요마손궤제위전도면적점결마손화후도면적마립마손。
Compared to the commercial ceramic tool SG4,the performances of nano-scale ZrO2 toughening Al2O3 matrix ceram-ics tool in machining the hardened 40Cr alloy steel,such as A15Zc and A20Z(c+m),were studied. When the hardened 40Cr alloy steel is machined,the tool flank wear widthes of A15Zc and A20Z(c+m)are increased with an increase of the cut depth and the effect of cutting speed on cutting performance is small. A15Zc and A20Z(c+m)have stronger wear resistance than SG4 at the smaller cut depth. The main wear patterns are tool wear on the rake face and flank,and the main wear mechanisms are bonding wear on tool rake face and abrasive wear on tool flank.
