JB/T 9194-1999 JB/T 9194-1999 Roll forging die structure and dimensions JB/T9194-1999 Standard download decompression password: www.bzxz.net

ICN25.01E
Standard of the Machinery Industry of the People's Republic of China
JB/T9194-1999
Structural shape and dimension for roll forging die
Issued on 1999-06-24
National Bureau of Machinery Industry
Implemented on 2000-01-01
JB/T9194—1999
This standard is a revision of ZJ46001—90 (Structural Shape and Dimension for Roll Forging Dies). Only the original standard has been revised during the revision, and the main contents have not changed.
This standard replaces ZBJ46001—0 from the date of implementation. This standard is proposed and managed by the National Technical Committee for Die Standardization. The responsible drafting units of this standard are: Beijing Institute of Mechanical and Electrical Engineering, Jilin University of Technology. The main drafters of this standard are Ren Guangsheng, Zhang Chengzheng and Li Leping. Scope
Machinery Industry Standard of the People's Republic of China
Structure and size of roll forging dies
Structural form and dimension of roll forging dies This standard specifies the shape and size of roll forging dies and the marking of the longitudinal dimension of the roll forging dies. This standard is applicable to the open type forging dies, with the following as the design die. 2. Shape and size of forging dies
2.1 The shape and size of the dies are generally divided into two types: directional and integral. 2.1 According to the different ways of fastening the dies on the forging machine, there are two types of brush dies. JB/T9194-1999
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2.2.1 rescue type shaping, use quick shape press to tighten the forging according to the above, Sichuan structure needs 1, tightening example is shown in Figure 2, A
creative, part of the example is
) all the examples are replaced (grid shadow type; Austrian fan-shaped mold shape structure
1-load: 2, 3, 4-- follow the shape Mold: - Press: f nail: 7 - Shaft: 8 - Bearing seat 2 Closed front mold scraping example
2.2. Retracted front mold, use pressure or color pressure to fix it on the grip, its side has a convex: printed arc or carry, the shape of the control point Figure 3, tightening example see Figure 4,
Approved by the State Machinery Industry Bureau on 1999-06-24 and implemented on 2000-01-01
a! Two examples of integral training with surface resistance or quality inspection structure 1999
, one integral and with shape belt, one county with space
Figure 3 Human-shaped mold appearance structure
1--front tire nut; 2 positioning ring: 3, 4 bottom shape: 5 clamping ring 6 frequency nail: 7 retaining ring: 8 positioning pin: 9 key: 10-connection design
1--front tire nut; 2 positioning ring; 3, 4 correct connection: 5 out Attack: 6 retaining ring h) Replace with original one
Figure 4 shows the color mold forging
2.2.3 The shape of the mold, the size of the shape, the surface roughness, the sequence of the side wall and the end wall, etc., should be based on the relevant parameters of the forging machine series, the hot light part sample and the strength of the wall of the middle part are required to be determined, Figure 5 and Figure 6, 2
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.1R/T 9[94]999
Figure: Dimensions of roll forging dies
Figure 6 Dimensions of adult or fan-shaped dies
JB/T9194-1999
Figure 6 (Complete)
2.7.4 Thickness of roll forging dies is determined by formula (11)-formula (3): Roller die thickness S
S=(1.1-1.5) H
Thickness of front end of yoke die
Thickness of rear end of root forging die S!
Where: A
Maximum depth of one side of a die;
Depth of front end of a groove;
Depth of rear end of a groove.
S,-(1.--1.5) h.
2.2.5 The inner and outer true diameters of the forging die are determined according to the general die sheet dimensions H, d, 4, d, C, FF, etc. Formula: 4F Formula (3) and Table 1.
Saw screw die outer diameter:
In the formula: The nominal diameter of the first die refers to the nominal rotation diameter at the die parting surface, which is equal to the nominal center distance of the two sets; Side thickness
Forging seat thickness:
H. Do da-(2-3) hu
JB/T9194-1999
Clothes 1 front shape scale reference
Private suitable D
2.2.6 The actual size and surface roughness of the forging die are determined according to the heat treatment drawing 2. 3 The overall film is used for sensory verification. 2.3.1 The whole work is fixed with keys, and its structure is shown in Figure 7. The fastening examples are shown in Figure 8A.
Figure 7 Structure of the whole die
1—Integral die: 2—Flat chain: 3—Forging batch; 4—Scale: 5—Pressure gain Figure 8 Fastening example of the dynamic die
The overall die size is smaller than 9, and is verified according to Table 2: 2.3.2
JB/T9194-1999
Figure 9 Overall die size
Table 2 Overall die size minimum zero number
Maximum die nominal value
2.4 In order to improve the service life of the cone die and the part with less wear and tear in the forging die forming process, a key block can be made. 2.5 In the deep cavity of the groove, 1 vent hole can be added as required. 3 Process broadcast on the roller hub die
3. In order to ensure the quality of the forgings and improve the service life of the die, a process shaft is opened on the forging die. 40u
3.? Eliminate and reduce the uneven deformation of the conductive part, add a balance phase (see A in Figure 10), avoid the appearance of roughness defects Figure 10 Balanced type on the nickel mold
Edition model weaving dimension marking
4.1 The longitudinal section length is converted into the section mold center, according to formula (6): 180
Limit the mold center angle, ();
(. -[+S,2
The length of the mold area determined by the radius of application, the length of the corresponding section, m:
［6】||t t||Mould action step diameter, when compared with this series of silver, can take ratio = (- change, 2, this stock draw height thickness size change, the zone R can be based on the average value of the first, m:
radial design after the cabinet into the high waste, mm: the previous value, the same cross-section section, according to 4% · 6%; in the over-irrigated mold section, according to the consumption of the bad material feeding force to determine 1B/T9194--1999
When the bad material swims to the front, take 2%-4%: when the thick end is forward, take 6%-12% of the mold stop length 6 is the sum of the lengths of each section, see Figure 11, well according to formula (7 calculation: +- f.+.+&.+....+&
r4:t--10c.15* 0 73-0262 d.
4.2 Type broadcast longitudinal dimension marking see the following
Figure 11 longitudinal dimension marking
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