Каталог Iscar токарный инструмент 2017 - страница 543

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Навигация

Thread Helix Angle and Anvil Selection

Helix Angle λ Evaluationβ4.5˚
(1)=
λ
Pitchβ(1)=3.5˚
P

TPI mm β(1)=2.5˚

4˚ 3˚ 2˚ β 1.5˚

5(1)= 5.0
D β(1)=0.5˚
1˚
64.0
β
83.0
102.5
122.0
161.5
241.0
48P 0.5
0P - Pitch in mm tg 3λ= 0
10203040506075 Diameter.14· DD - Effective diameter
Diameter-D (mm)of thread in mm
β - Effective inclination angle20 · Pλ - Angle of inclination
(1)λº ≈
D
Anvil Selection According to Thread Helix Angle λ
Standard
Thread Helix Angle λ>4º3º-4º2º-3º1º-2º0º-1ºNegative Anvils
Inclination Angle β4.5º3.5º2.5º1.5º0.5º-0.5º-1.5º

l (d) Toolholder Anvil Designation

16EX RH OR IN LHAE16+4.5AE16+3.5AE16+2.5AE16AE16+0.5AE16-0.5AE16-1.5
(3/8)EX LH OR IN RHAI16+4.5AI16+3.5AI16+2.5AI16AI16+0.5AI16-0.5AI16-1.5
22EX RH OR IN LHAE22+4.5AE22+3.5AE22+2.5AE22AE22+0.5AE22-0.5AE22-1.5
(1/2)EX LH OR IN RHAI22+4.5AI22+3.5AI22+2.5AI22AI22+0.5AI22-0.5AI22-1.5
27EX RH OR IN LHAE27+4.5AE27+3.5AE27+2.5AE27AE27+0.5AE27-0.5AE27-1.5
(5/8)EX LH OR IN RHAI27+4.5AI27+3.5AI27+2.5AI27AI27+0.5AI27-0.5AI27-1.5
22UEX RH OR IN LHAE22U+4.5AE22U+3.5AE22U+2.5AE22UAE22U+0.5AE22U-0.5AE22U-1.5
(1/2U)EX LH OR IN RHAI22U+4.5AI22U+3.5AI22U+2.5AI22UAI22U+0.5AI22U-0.5AI22U-1.5
27UEX RH OR IN LHAE27U+4.5AE27U+3.5AE27U+2.5AE27UAE27U+0.5AE27U-0.5AE27U-1.5
(5/8U)EX LH OR IN RHAI27U+4.5AI27U+3.5AI27U+2.5AI27UAI27U+0.5AI27U-0.5AI27U-1.5

+λ°

β −λ° −β°

1.5° 1.5° const. const.

Anvils for positive inclination angle Anvils for negative inclination used

applicable when turning RH thread with when turning RH thread with LH holder

RH holders or LH thread with LH toolholders. or LH thread with RH toolholder.