Kyocera - Инструмент для обработки мелких деталей 2016 ENG
KTN / KTNS / SIN для заказа - kyocera@kyocera-tools.ru
RECOMMENDED CUTTING CONDITIONS
K TN / KTNS / SIN
A GRADES Recommended Insert Grade (Vc sfm) : 1st Recommendation : 2nd Recommendation
• Coolant is recommended.
Workpiece Cermet PVD Carbide • When using cermet inserts if edge chipping occurs lightly hone cutting
Material Coated Carbide
edge with diamond file.
• For stainless steel threading, please set smaller intial D.O.C. and two or
TC60 PR930 PR1115 GW15 (KW10) three more passes than threading for carbon steel.
B Carbon SteelINSERTS -
-
Initial D.O.C. (Radial) 330-490 330-490 330-490
0.0118" or less 0.0118" or less 0.0118" or less
Alloy Steel -
330-490 330-490 330-490
CBN & PCD Initial D.O.C. (Radial) 0.0118" or less 0.0118" or less 0.0118" or less -
C Stainless Steel -
200-260 200-260 200-260
Initial D.O.C. (Radial) 0.0098" or less 0.0098" or less 0.0098" or less -
Cast Iron - - -
TURNING 330
E Initial D.O.C. (Radial) - - - 0.0118" or less
Aluminum - - -
150~400
Initial D.O.C. (Radial) - - - 0.0118" or less
BrassBORING - - -
F Initial D.O.C. (Radial) 150~300
- - - 0.0118" or less
° For 06IR/08IR, please lower it to a figure under 40% of above conditions.
GROOVING L ead Angle of Thread
G Thread's Lead Angle as shown in Fig. 1 decides from the Work Diameter (Pitch Dia.) "D" and Lead "L"(in case of Single-start Thread, it is the same
as Pitch "P"). Rolling a right-angled Triangle around a Cylinder and the Angle ACB in Fig. 2 becomes the Lead Angle . The Calculation Formula is
shown as follows.
[ ]H
CUT-OFF tan = L = nP : Lead Angle D: Pitch Dia. n: Number of Thread (such as double-start thread) P: Pitch
DD D L: Lead (In case of single-start thread, it is equal to P. In case of n-start thread, it is equal to nxP)
J SOLID END MILLS THREADING
L
M MILLING
R elief Angle of Thread
Against this Lead Angle, the Threading Insert needs Side Relief Angle . TNN type Threading Insert is a negative Insert and it does not prepare theSPARE PARTS
Relief Angle originally. But when installing the Insert on the Toolholder, the Edge Inclination Angle 3 is prepared as shown in Fig. 3, and it generates
P both the front Relief Angle and the Side Relief Angle . This Side Relief Angle is obtained by the Formula as follows. (See Fig. 4)
tan = tan x tan ( ) Table 1
2
R TECHNICAL Symbol e.g.) Inserts Side Relief Angle
: Side Relief Angle External Internal
: Inclination Angle after External Insert : 10 60° Thread (M, UN, NPT) 5 49 8 47
Installing Insert Internal Insert : 15
T INDEX : Insert's Thread Angle Metric : 60 55° Thread (W, G, PT) 5 14 7 56
Tapered Pipe : 55
30° Trapezoidal : 30 30°Trapezoidal (Tr)
2 43 5 7
T: Insert Thickness
{ X=Tsin
Y=Xtan (/2)=t tan
t =Tcos
See table 1 for the Side Relief Angle depending on the insert.
However, the Side Relief Angle for 1°is set by the toolholder itself, and the actual Side Relief Angle becomes + 1°.
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