工具技术
工具技術
공구기술
TOOL ENGINEERING
2014年
10期
20-21,22
,共3页
汪萌%张伟%贺凤宝%胡建忠%王彬杰
汪萌%張偉%賀鳳寶%鬍建忠%王彬傑
왕맹%장위%하봉보%호건충%왕빈걸
枪钻%20CrMnTiH%断屑%排屑
鎗鑽%20CrMnTiH%斷屑%排屑
창찬%20CrMnTiH%단설%배설
gundrill%20CrMnTiH%chip-break%chip-evacuation
枪钻在加工20CrMnTiH材料时存在断屑难、排屑难导致刀具磨损、寿命降低等主要问题。本文对实际加工条件和被加工材料的特点进行分析后，修改了钻尖的几何参数来进行改进。经过一系列试验研究证明，改进后的枪钻解决了实际加工中断屑难、排屑难的问题，并使刀具寿命提高了两倍。
鎗鑽在加工20CrMnTiH材料時存在斷屑難、排屑難導緻刀具磨損、壽命降低等主要問題。本文對實際加工條件和被加工材料的特點進行分析後，脩改瞭鑽尖的幾何參數來進行改進。經過一繫列試驗研究證明，改進後的鎗鑽解決瞭實際加工中斷屑難、排屑難的問題，併使刀具壽命提高瞭兩倍。
창찬재가공20CrMnTiH재료시존재단설난、배설난도치도구마손、수명강저등주요문제。본문대실제가공조건화피가공재료적특점진행분석후，수개료찬첨적궤하삼수래진행개진。경과일계렬시험연구증명，개진후적창찬해결료실제가공중단설난、배설난적문제，병사도구수명제고료량배。
The serious problem in processing 20CrMnTiH is the hard -break and evacuation of chips when drilling . It deal to the wearing of the gundrill and also reducing the tool life.Based on the experiences accumulated in gundrill geom-etry design,modifications of the drill point are proposed,adapting to the characteristics of this kind of workpiece and work-ing condition.Experiments and test-turn reveal that the chip can be break well and fluency discharged ,also the tool life of drill increases by 2 times in comparison with that of the conventional ones.
