PRECISION ONE–STEP CORE PINS –SHAFT DIAMETER (D) SELECTION TYPE–
Precision
E When exceeds the working limit of tip (ℓ) dimension,(Refer to the Step drawing lower right) c "Details of the tip (ℓ) short type" D posted on Web only
0.01mm increments
0.1mm increments
Part Number
M Material H Hardness
Part Number
High Speed Steel SKH51
H
L
F
ℓ max.
Type
Step
Shape
A Vmin.
C
R
Type Step Shape D min.
max.
min.
max.
1
Die Steel SKD61
1A
Not processed
3
1.5
Designation is unnecessary when tip processing is not required C
0.50
SKD61 48–52HRC
2
100.00
4 5 6
CPZ–
1A
C G T R B
Only Step 1E designated
1B
2.5
NAK80
Only Step 1D designated
3
0.70
3.5
1C
1B
CPZ–
7
D ＞ A ≧ V
DH2F
L– ℓ min.
4
120.00
A × 6 ( D × 6 for
1.00
4.5 5 5.5
D–A 2
1D
C ＜
8
D–A 2
Step 1A ) and ℓ ≦ 50
R ≦
SKH51 58–60HRC
14.00
12.00
CPV–
E ℓ min. Refer to the Step drawing
Step 1A D ＞ V
1C
G
1.50
Pre-hardened Steel
and ※ 0.1 ≦ C ≦ 4.0 ※ When CVC code is used 0.10 ≦ CVC ≦ 1.00
9
1E
and R ≧ 0.2
6
No designation necessary for A
PROVA400 Pre-hardened Steel
6.5 7
T
120.00 Only CPV– 150.00
10
CPV–
1D
Shape (Tip shape: V is a dimension before tip processing.)
2.00
8
11 15 18 21 25
Step type selected from 1A–1E below
R
Stainless Steel SUS440C
10 13 16
1E
R ≦ 0.3
No need to designate Shape if no tip processing is required
1A
(Not processed)
B
Shape
Select a tip shape from the drawings on the right
MAS1C
20 30.00
28.00
5.00
α＝ 0
Part Number – L – F – A – V – C/R – Tip size (K/S/G/Q) CPV–1BR6 – 46.00 – F38.00 – A5.00 – V3.00 – Q1.0 CPV–1DG6 – 50.00 – F40.00 – A5.10 – V3.00 – C0.3 – K40 CPZ–1ET4 – 42.00 – F35.00 – A3.20 – V3.10 – R0.4 – K35 – S1.0
4mm
Order
＋ 0.01 0
JIS (6/8mm)
T ＝ 4
0 － 0.02
L
ℓ
＋ 0.05 0
F
10mm
L
ℓ≧ 0 . 5 ＋α
C
(C chamfered)
Quotation
0 . 1 ≦ G ＜ V / 2 Designation 0.05mm unit α＝ G θ＜ 45 °
Delivery
Free Designation
G
± 0.02
1B
45 ° ± 30 ´
R ≦ 0.3
R ≦ 0.2 （θ≦ 5 ° R ≦ 0.1 ）
Shape
θ
D (P) –0.01 –0.02 D (P) 0
Part Number – L – F (FC) – A – V (VC) – C (CVC)/R – Tip size (K/S/G/Q) – (KC/WKC … etc.) CPZ–1DC6 – 50.00 – F40.00 – A5.00 – V3.10 – CVC0.10 – G1.0 – HC8.0 CPV–1A 5 – 58.00 – F50.00 – V4.00 – NHC–23
Alterations
Alteration details D P.365
–0.005
G
Alterations Code
Spec.
Alterations Code
Spec.
＋ 0.01 0
L
D (P) 0
–0.003
T ＝ 4 0
TRN Relief under the head
Single flat cutting D/2 ≤ KC < H/2
KC
－ 0.02
KC － 0.01 0
(No need for plate chamfering)
＋ 0.01 0
ℓ
G (Cone)
F
Total Length Designation
Numbering at the back part of the head Range of designation and Designation method: D P.365 E Available when H ≧ 2 X Combination with SKC not available Standard Ks = 45° can be specified as an angle AC = 1° increment E Available for Step 1C/1D E 30 ≦ AC ≦ 60 X Combination with CVC not available E Step When 1D, C ≦ 1.0, A + 2 (C × tanAC) ＜ D C dimension can be designated at 0.01mm increments E 0.10 ≦ CVC ≦ 1.00 E Available for Step 1D E CVC ＜ (D–A)/2 X Combination with AC not available
L
ℓ≧ 0 . 7 ＋α
± 30 ´ K °
About Designation Unit for Key Flat Cutting
WKC Two flats cutting D/2 ≤ WKC < H/2
A15
θ
Shaft Diameter / Total Length Designation Free Designation
NHC
Designation 0.1mm unit 20 ＜ K ≦ 60 α＝ 2tanK V
0 － 0.01
R ≦ 0.2 （θ≦ 5 ° R ≦ 0.1 ）
8
WKC
R ≦ 0.3
1C
Shape
Ks ＝ 45 ° ± 30 ´
θ＜ K
Varied width parallel flats cutting D/2 ≤ KAC < H/2 KBC = 0.1mm increments only KAC ＜ KBC ＜ H/2
AC °
KAC KBC
AC
－ 0.01 KBC 0
－ 0.01 0
0 － 0.1
KAC
L
TiCN Coating
(1) To align the key flat with the shaft diameter Unit of designation 0.05mm increments possible
CVC ± 0.02
Two Step Shape
T
(Tapered)
45 °
T ＝ 4 － 0.02 0
2 D ー A ℓ≧ When AC alteration is used
Two flats (right angled) cutting D/2 ≦ RKC ＜ H/2
＋ 0 . 5 ＋α
CVC
RKC
V 2tanK
RKC － 0.01 0
S ± 0.02
0.1 ≦ S ＜
ℓ
＋ 0.01 0
θ
F
± 30 ´ K °
Designation 1° unit 10 ≦ K ≦ 45 α＝ S θ＜ K Designation 0.05mm unit
2tanAC D ー A ℓ≧ ＋
L
D
Vmin.
VCmin.
0 . 5 ＋α
DKC Three flats cutting D/2 ≤ DKC < H/2
Vmin. is enlarged VC = 0.01mm increments E ℓ ≦ A × 5, ℓ ≦ 50 (D × 5 for Step 1A) E D ＞ A ≧ VC
1–1.5 3.5–4
0.50 1.00 1.50 2.00 5.00
0.40 0.70 1.00 1.50 4.00
0 － 0.01
DKC
DKC
R ≦ 0.3
5.5
1D
C ± 0.05
Shape
VC
6–10
Ks ＝ 45 ° ± 30 ´
＋ 0.01 0
20
L
Four flats cutting D/2 ≦ SKC ＜ H/2
X Regarding D = 2–3, 4.5, 5 and 13–16, Vmin. is the machining limit and VC cannot be used
C
SKC
R ≦ 0.2
(2) To designate
－ 0.01 SKC 0
R ≦ 0.2 （θ≦ 5 ° R ≦ 0.1 ）
arbitrary key flat dimensions Unit of designation 0.1mm
R
(R chamfered)
Designation 0.1mm unit 0 . 2 ≦ Q ＜ V / 2 α＝ Q
AG °
± 0.5
Two flats (angled) cutting D/2 ≦ KGC ＜ H/2 0 ＜ AG ＜ 360 AG = 1° increments
F dimension becomes shorter than Fmin. Make L dimension shorter than Lmin. too. FC ≧ 5mm E It can be designated up to Lmin. = 6.5mm
Q ± 0.1
0 °
KGC
FC
FC
T ＝ 4
0
－ 0.02
KGC
F
＋ 0.01 0
ℓ≧ C ＋ 0 . 5 ＋α
ℓ
F
120 ° 120 °
Gas vent machining GS/GB = 1mm increments E Available when D ≧ 2 E 2 ≦ GS ≦ 10 GS + 2 ≦ GB ≦ 30 Fmin. ≦ F–GB Range of designation and Designation method: D P.366
Q
Three flats cutting at 120° D/2 ≦ KTC ＜ H/2
2 D ー A
－ 0.01 120 ° 0
L
1C Step
C＝
KTC
GVC
GS
＋ 0.01 0
L
KTC
F GB
R
± 0.1
R ≦ 0.3
1E
Shape
Head diameter change HC = 0.1mm increments E D ≦ HC ＜ H
E For details of a "Gas Release Core Pin," which is a product similar to alteration GVC, D P.465
SR B (Spherical processed)
HC
E In relation to the diameter tolerance, alteration may create a straight piece with little diameter difference between the head and shaft.
α＝ V / 2
Head diameter change (precision) HCC = 0.1mm increments E D + 0.5 ≦ HC C＜ H–0.3
HCC
T ＝ 4 0
－ 0.02
＋ 0.01 0
ℓ
F
0 － 0.1 L
Head thickness change TC = 0.1mm increments
L
E 1.5 ≦ TC ＜ 4
ℓ≧ R ＋ 0 . 5 ＋α
TC
0
TC
－ 0.02
(Dimensions L and F remain unchanged) E 4–TC ≦ Lmax.–L
(Calculation of tip gradient θ D P.1193 )
4
E Refer to the Shape drawing for L tolerance
371
372
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