難切金屬材料的鋸切加工系數(shù)表
隨著中國現(xiàn)代制造技術(shù)的不斷發(fā)展,人們對鋸切效率要求越來越高。由于硬質(zhì)合金帶鋸條能夠相較于雙金屬帶鋸條成倍提升鋸切效率和鋸切面積,降低材料鋸切成本和降低更換鋸條頻率,因而在難切金屬的鋸切應(yīng)用領(lǐng)域,硬質(zhì)合金帶鋸條替代雙金屬帶鋸條已是大勢所趨。
下表為不銹鋼、工具鋼、航空合金和鈦合金等進(jìn)口難切金屬的鋸切加工系數(shù)。鋸切加工系數(shù)是以45號鋼為標(biāo)準(zhǔn),相對于該材料加工效率的百分比稱為鋸切加工系數(shù)。加工系數(shù)越低,材料鋸切難度越大,線速度和鋸切效率設(shè)置值也越低。如加工系統(tǒng)為1的碳鋼線速度設(shè)定為80m/min, 效率為70cm2/min, 而加工系數(shù)為12%的Inconel 718(國標(biāo)GH4169)鋸切速度只能設(shè)置為20m/min, 鋸切效率設(shè)置為8cm2/min左右。
材料 |
加工 |
Rene 41 |
7% |
9% |
|
188 |
9% |
Inconel 617,625,718,X750 |
12% |
Waspalloy, |
12% |
Monel K500(時效) |
15% |
Nitronic 50(22-13-5), |
17% |
M-4 |
17% |
Inconel 600,601, |
18% |
M-3,M-42 |
18% |
Ti-6AL-4V HT(硬化) |
18% |
330 |
20% |
A286 |
20% |
D-3 |
21% |
TI-6AL-4V |
22% |
316B |
22% |
Nitronic 40(21-6-9) |
22% |
Kovar |
22% |
25% |
|
D-2,D-5,M-1,M-2,T-1 |
25% |
304B |
28% |
Super Duplex |
29% |
Duplex雙相不銹鋼 |
35% |
A-2,DC-53 |
35% |
309,310,316,316L, |
36% |
13-8 PH-Mo, 17-4PH H1025 |
36% |
Maraging 300,4750, |
36% |
A-8, L-6 |
38% |
Alloy 20, Monel 400 |
39% |
A-6,S-5 |
39% |
CP Titanium Grade 2 |
40% |
302,304,304L,440A,440C, |
40% |
Carpenter 20,AM 355 |
40% |
H-19 carbide |
42% |
303高強度 |
43% |
15-5,17-4PH,17-7PH |
45% |
S-1 |
46% |
431,440F Se |
48% |
Monel 405 |
48% |
H-11,H-12,H-13 |
49% |
416H.T. |
50% |
418,420 |
50% |
O-1,O-2,S-7 |
53% |
410 |
54% |
Invar 35 FM |
55% |
低合金型雙相不銹鋼 |
56% |
O-6 |
63% |
W-1 carbide |
65% |
430 |
66% |
66% |
|
420F |
68% |
303,410(退火),430F |
75% |
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