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λ:֣ݻⳬӲ޹˾. : Ӧð . ʱ:2018/11/30. : 430 .

ҲڡǽγϵͳеҪǽĶӱݵ֣γʻܺûӰʻĶԺͲԣӰʻƽԣ˶乫͸㲿ϼ϶ҪΪϸ

 

1㲿IJʽ

Ҫǣ׳οǻ֣֣׳׻֣ͱּܵIJɡ

οǣòΪ55#֣ȴӲHRC52-58֮䣬иԺãǿȸߣĥơ

ףּܣòΪ20CrMoTiȴӲHRC58-62֮䣬нϺõı濹ƣǿȣIJ㹻ǿȺԡ

򣺳òΪGCr15

2㲿ļӹѵ

1οǣףּܾȴӲȽϸߣڶһ㵶ߺѼӹ

2㲿ľ빫ϼ϶ҪΪϸ񣬲ͨӹԱ֤

3࣬㲿ĽṹӡԼӹ

3㲿ļӹѡ

Ŀǰ㲿ҪΪӲʺϽմɵ߼ӹУ㲿ӲȸߣҲִڶпڻܿĥ𣬵ò֤Դ˻ⳬӲƼCBN߶㲿гϳӳʺͲƷ

ӹüӹĶ㲿гڶԾϿijߴ繫Ҫ󣬻ǿ£ɲûⳬӲBN-H10ƺźBN-H21ƺŷֱ㲿Ͷͬʱ⻹ṩͿ޹еӲӹ

ϳӹҪοǺϵϳͱּܵĴϳⳬӲCBNϳнϸߵĸĥԺȶԣпھĴգиߵвǿȺȶԣȶϸοͬȣͬȹҪ

ƺ

ϼ

CBN

%

m

Ӳ

HV

ɳܳԵȣmm

Ƽ״̬

BN-H05

TIN

45

1

2700-2800

0.2

BN-H10

TIN

50

1

2700-2800

0.5

BN-H21

ALTINC

60

1-2

2600-2800

0.5

жǿ

4CBN߼ӹİ

1ⳬӲCBNBN-H10ƺųοǣ

 

ƣο

ӹ棩

ӲȣHRC58

߲ʣBN-H10 TNGA160408

Vc=190m/min Fr=0.15mm/rap=0.15mm

ӹʽʽ

߲

ٶ

߳ɱ

ⳬӲBN-H10

190m/min

355/

0.06Ԫ/

ijŷϵƷPCBNƬ

170m/min

370/

0.10Ԫ/

    2ⳬӲCBNϳʣ20CrMnTiӲȣHRC58-62ӹVc=170m/min fz=0.07mm/zӹʽʽ4500

 3ⳬӲCBNϳּܴڣϣ20CrMnTiӲȣHRC58-62ֲڶҪRa1.6ӹVc=130m/minFr=0.2mm/rap=0.3mm2000