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λ:֣ݻⳬӲ޹˾. : Ӧð . ʱ:2021/8/14. : 178 .

ᡢʮᡢ濴ʲôϵҵԱӦþͱȽϤˣʵϵĸڡڱΪϵͳ򴫶װõؽڡĽṹþͺ֫ϵĹؽڣӵ֮һļнǷΧڱ仯IJͬλиʽ  

ᡢʮᡢ㲿ӲΪҪʣȴӲHRC55ϣжֵߣӲʺϽ𵶾ߣմɵߣPCBNߣʯߣѡʺӲأСҽһ¡

ֵ߿˵˳ӦгӦ˶ĵߣűӹĹӲԽԽߣƷҪԽԽϸ񣬵Ҳڲϵķչøּ˵ȴĸּ٣ʹȴӲҲߣԳӲʺϽ𵶾ߣӹHRC45µĹû⣬֮ŸּӲߣմɵߣʺϼӹHRC45-55֮ĹԽԽĸּȴӲȴﵽHRC60ңָ֣и֡ģ߸ֵȣʱͳPCBNӲߣֹĿǰӹɫӲĵ߲ϾPCBNˡᡢʮᡢ㲿ȴӲĿǰHRC58-62֮䣬ӲȸּѡPCBNٺʲˡ

ŻеҵķչPCBNҲһֱڲܣPCBNߵĻͿ㡢޹См۵͹գͬʱӲϱ֣ԸӲȸּIJͬƸԵĵ߲ʣԸЧĽͻ⡣

ּȴ󾭳ֵУ1⣬ССԵû̫Ӱ죬͸ּȴܳ1mmԵߵӰܴһСľͱˣӰЧʣӰ칤2Ӳȸ߾Ͳ˵ˣжʮӹĸʹڶԵߵĿҪܸߡ

ԴӲҵԵƳͬĵ߲ʣBN-H05ʣ߱dzĥ߿ɻRa0.4ڵıȣѡBN-H10ʣгɫĥԺͿԣڸ㷺Ӧ-жBN-H21ʣdzĿԣdzʺǿӹ߶ںʽPCBNߣֻвλPCBNʣʺ0.5mmµӲ֣0.5mmϵĿBN-H200ʺBN-S20ʣʺϴͱȶ

1

ʣ20CrMnTi

ӲȣHRC58-63

ӹλͷ

ֲڶȣRa0.8

ƬͺţBN-H10 DCGW11T308

Vc=130m/minFr=0.07mm/rap=0.1-0.2mm

325/

2ʮ

ʣ20CrMnTi

ӲȣHRC58-62

ӹλԲеȶ

Ҫ0/-0.022

ƬͺţBN-H21 C50 CNGA120408

Vc=77m/minFr=0.12mm/rap=0.29mm

ӹʽʽ

80/

ijƷͿCBNƬ50/