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acrylic_cutter

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one_flute_spiral_tools_AAA

Advertising_CNC_tools

GA-V_sharp_tools
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GC-tapered_ball_nose_bits
GD-Single_flute_straight_bits
GE-Two_flute_straight_bits
GF-Radius_engraving_Bits
Jeefoo CNC gravura Bits arredondados inferior gravura Bits...
GH (AAA)-one_flute_spiral_tool_AAA
GH-One_flute_spiral_endmill
GI-Acrylic_cutter_tool
GJ-two_flute_spiral_bits
GK-Three_flute_spiral_bits
GL-One_flute_straight_cutter
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Bead_bits_and_barrel_bits

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MH-Three_face_engraving_bits
MI-Drill_Bits

Aluminum_tools

LA-Aluminum_cutter
LB-Aluminum_engraving_tools
LC-One_flute_aluminum_bits
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高速钢刀具材料的合理使用

发布时间:2013-08-08

  高速钢的牌号很多,且各自具有特点及应用范围。用它作刀具材料,应根据加工材料的性能,制造刀具的类型,加工方式和工艺系统刚性等条件合理选用。其选用原则如下:

  通用型高速钢价格较低,主要用于加工普通钢,合金钢和铸件。

  高性能高速钢主要用于加工不锈钢,高强度钢,高温合金、耐热钢等难加工材料。

  W2Mo9Cr4VCo8(M42)、W6Mo5Cr4V2Co8(M36)、9Mo3Cr4V3Co10等牌号含钴的高性能高速钢有较高的高温硬度。在切削条件平稳的情况下切削,刀具寿命可显著提高。因为这类高速钢的韧性稍差,因此它不适于断续切削或在工艺系统刚性不足条件下使用。否则容易崩刃或打刀。

  通用刀具(孔加工刀具、铣刀、螺纹刀具)较复杂刀具其制造工艺简单,制造精度亦较低(螺纹刀具除外)。考虑到刀具成本中材料消耗费用所占比重较大,所以常用W6Mo5Cr4V2和W9Mo3Cr4V等通用型高速钢制造。数控机床和自动线上所用刀具,要求能稳定可靠地进行车削,拉刀和齿轮刀具等复杂刀具的制造精度和技术要求较高,在刀具成本中加工费用所占比重较大,故应用高硬度、高耐磨的高性能高速钢和粉末冶金高速钢制造。但需注意对W6Mo5Cr4V5SiNbAl(B201)、W12Cr4Mo(EV4)、W9Cr4V5W6M05Cr4等含钒量较高的高速钢,因其磨削性能较差,刀刃易烧伤退火,故不宜用于制造小模数插齿刀,螺纹刀具,榫头铣刀等型面复杂的刀具。

  涂层高速钢价格稍贵,但其切削性能好,刀具寿命长,可采用比未涂层刀具高100-1000的进给量和高20%~30%的切削速度工作,且具有换刀次数少和功率消耗省的优点,所分摊到每个工件上的刀具成本还是远低于未涂层刀具,故宜优先选用。但涂层刀具的锋利性、冲击韧性,抗剥落和抗崩刃性不如未涂层刀具。因此,不将其用于小进给量切削和沉重的粗加工。



Plotter_blade_and_holder

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PC-Pcut_blade_and_holder
PC (A)-Pcut_blade_A
GT15-15U_Grapthec_blade_and_holder
GT15 (A)-15U_Grapthec_blade_A
GT09-09U_Grapthec_blade_and_holder
GT09 (A)-09U_pthec_blade_A
SG-Summa_blade_and_holder
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BR-Big_roland_blade_and_holder
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Marble_Tools

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DQ-pcd_Acrylic

Wood_bits

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WB-Straight_bits
WD-wood_Round
pcd_wood2
Woodworking_Tool_Box
wood2_bits

Carpintaria faca padrão gongo

A Straight-perfuração ferramentas de corte
Facas com rolamento-Corte B
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Forma broca classe D-Hetero
E-Faca linha de fundo redondo
F-Convex faca metade circular
G-Arch tipos de faca arco
Facas decorativas lineares H-clássico
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Facas decorativas K-arquitectura simplificados
Linha L-Rail / linha de faca
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N-polimórfica faca clássico
O-Faca linhas modelo prego-like
P-T-espiga faca
Combinação de corte Q-T-espiga de classe
R-Door Faca
T-Solid Carbide facas de corte
Outros U-series
serra

ER_Collect_nuts

braçadeira
noz
starepart
carboneto

amolador

JF20A
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