JB/T 9196-1999 JB/T 9196-1999 Cold extrusion die working part JB/T9196-1999 Standard download decompression password: www.bzxz.net

ICs25.010
Machinery Industry Standard of the People's Republic of China
JB/T9196—1999
Working portion of cold ertrusiun die
Promulgated on 1999-06-24
National Bureau of Machinery Industry
Implementation on 2000-01-01
JB/T9196—999
This standard is a revision of 2BJ46UU2-"Working part of cold ertrusiun die". During the revision, only the original standard was shortened and revised, and the main technical content remained unchanged. This standard is issued and managed by the National Technical Committee for Die Standardization on behalf of 2BJ46(02-90) from the date of implementation. The responsible drafting units of this standard are: North Point Electromechanical Research Institute, Shanghai Jiaotong University, Tianjin University, and 1 Sea Tool Technology Research Institute. The main contributors to this standard are: Wang Quezu, Wu Gongming, Ma Juefang, Qian Xiao, and Fang Zhiqiang. Scope
Machinery Industry Standard of the People's Republic of China
Cold Extrusion Die Working Part
Warmingpnrtion ofceld extrusion This standard specifies the structural type, size parameters and technical requirements of the extrusion die. This standard is applicable to the cold extrusion of ferrous metal materials. For the cold extrusion of non-ferrous metal materials, please refer to the following 2 positive folding punches. 2.1 Structure type and size parameters. 2.1. Structural type. a1 Flat bottom integral punch see Figure 1: 6) Pin bottom integral die see Figure 2; Mandrel integral punch see Figure 3: National Machinery Industry Association 1999-06-24 approved JB/T9196-19#28J46 02—9U
2000-01-01 implementation
) See Figure 4 for the mandrel assembly model; See Figure 5 for the moving mandrel assembly model
2.1.2 Dimension parameters (see Figures 1-5)
一Determined by the diameter of the finished product, the inner diameter of the finished product
cd.d. (o.1-0.2) nnl
d- (--1.31d
d(1.3--1.5)bZxz.net
4—Determined by the upper limit of the true lightness of the finished product
, the finished product diameter 41 is selected according to the finished product tolerance 1
JB.F9196-[999
Note 6 (the depth of the mirror controller is uncertain)
R———[The radius of the mirror
R, -0.5 (dd, ?
Determined by finished product size
R,0.3 (dg d)
0-1*~5
$-5~10
22 Technical requirements
2.2.1 Surface roughness
JB/T9196-1999
The surface roughness of the contact surface between the convex core and the pressure-changing part is 0.4 μm: the surface roughness of the non-contact surface is 0.8 μm2.2.2 Form factor
The axiality between the convex part and the diameter is ≤.2mm; the verticality between the fixed end face of the die and the axis is 0.m2. 2. 2 Analysis
W6MuSCr4W2 or materials with equivalent performance 2. 2.4 Heat treatment temperature
61--63 HRC.:
3 Reverse extrusion punch
3.1 Type and size of the punch
3.1.1 Type of the punch
a! Flat reverse extrusion convex as shown in Figure 6;
6) Semi-pin reverse extrusion, lower punch as shown in Figure 7; c! Combined reverse extrusion convex as shown in Figure 8.
3.1.2 Dimensions (see Figure 6 and Figure 8)
-Determined by finished product diameter
d, -d- (u.1-.0.2 / mm
t- ( 1- 1.3 ) f
d=(1.3--1.5/d
2.~d,+(0.4-0.5)mm
d..--Determined by finished product diameter or die inner diameter 2,= ( 1.0~1.3 3 d,
d-（0.25~0.3)d
d, (1.3-1.5) 4,
A=2~4 Tam
calculated=2.sd (change of depth)
JI/T9196—1999
is determined by the guide depth
——smooth transition depth
R——determined by the minimum disturbance size
R, -0.5 (dg-d, )
2 -160*~17
p-15-50
8=10*-[50
3.2 Technical requirements
Report 2.2 provisions:
4 Punch fixed part
4.1 Structural plan and size parameters
2) Net shape fixed structure must be Figure 9;
b) Tank shape fixed structure:
: Integral type use Figure 10.
Combined type:
See the figure for the head support type;
See the figure for the head support type,
JB/T9196—1999
4.1.2 Dimensional reference (see Figure 9~Figure 12)
JBT9196-1999
According to 2.1 .2 and 3.1.2 related provisions (except or 0.1d.1.2 technical requirements
2.2 provisions,
5 forward extrusion die
5.1 station configuration or as small as possible
5.1.1 joint type
2) the integral type drawing die is shown in Figure 13;
b group mold
horizontally divided die see Figure 14
longitudinally divided die see Figure 15.
3,1.2 from the size of the teaching (see 13-Figure 15) d the outer diameter of the product or the outer diameter of the punch is determined by the size of the two parts of the press fitting
ct90°-120
R=35mm
R,=3-10mm
K,-0.5-1.5 mm
Slip radius
-|p_.1\30*
1=Rough height
hh,+R+ (3-5) mm
h,=2-4mm
199196-1999
-1~2mm【R and above!
a=0.050.10
a,=1-3 mm
5.2 Technical requirements
5.2. Surface roughness
JM/T9196—1999
The contact surface between the die and the assembled part, the surface roughness R0.1μm; the non-contact surface, the surface roughness R is 0.8μm.5.2.2 Form and position tolerance
The coaxiality between the die diameter part and the grid point is or 0.02mm: the straightness between the bottom surface of the die and the axis is 50.01 mm, 5.2.3 Material
w6MosCrdV? or materials with equivalent performance. 5.2.4 Heat treatment hardness 61~3HRC 6.1.2 Dimension parameters of the positive extrusion die with correction belt (1.1 Structural type [Figure 16]) 6.1.2 Dimension parameters (see Figure 16) d---determined by the finished product diameter or the outer diameter of the core d--determined by the rod size of the extruded part -1.004 d, Q-90°-120°, = 3--5 mm R, -3--J0 mm R, -0.5 -1.5 m Transition diameter & 0.05-0.10 mm
n,=gross strength
h,-2-R+ (3-5) mn
h,= (0.5-0.7 1 d,
z,=2~4 mm
h,-2~3 mm
6.2 Technical requirements
According to the provisions of 5.2,
7 Reverse extrusion die
7.1 Structural type and dimensional parameters
7,1.1 Structural type
) Phantom:
Straight screen type see Figure 17.
Step type see Figure 18.
JB/1: 9196-1999
h】Assembled transverse split return die see Figure 19. 7.1.2 Dimension adjustment (see Figure 17.-Figure 19) - Determined by the product diameter or the outer diameter of the punch
d,-de-2R:
R=3-5mm
R.-3.-5mm
(1·-3mm
=[\-1930\
—hair height
h,hg+R,-（3.5 >mm
h=R,-(E-2)mm
7.2 Technical requirements
According to the provisions of 5.2.
R/T9196—1999
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