CN106270326B - The forging method and forging mold of big guide rail forging part peculiar to vessel - Google Patents

The forging method and forging mold of big guide rail forging part peculiar to vessel Download PDF

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Publication number
CN106270326B
CN106270326B CN201610780968.XA CN201610780968A CN106270326B CN 106270326 B CN106270326 B CN 106270326B CN 201610780968 A CN201610780968 A CN 201610780968A CN 106270326 B CN106270326 B CN 106270326B
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forging
base
mould
biscuit
guide rail
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CN106270326A (en
Inventor
陈平
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Xi'an Kunpeng Forging Branch Trade LLC
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Xi'an Kunpeng Forging Branch Trade LLC
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00Details of machines for forging, pressing, or hammering
    • B21J13/02Dies or mountings therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02Die forging; Trimming by making use of special dies ; Punching during forging
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/08Upsetting

Abstract

The present invention provides a kind of forging method and forging mold of big guide rail forging part peculiar to vessel, and the forging method includes:Blank is subjected to jumping-up processing, prepares biscuit of the cross section for ellipse;Biscuit is placed in progress pressure shoulder sub-material process in blanking mold, prepares cross section as criss-cross just base;First base is subjected to flat-die forging processing, prepares pre- forging stock;Pre- forging stock is placed in progress die forging processing in mould, forges big guide rail forging part peculiar to vessel.The present invention can be realized in the equipment of smaller tonnage to produce the stainless steel guide rail forging part that larger tonnage plants can just be produced, and improve stock utilization, shorten the production cycle, reduce production cost, the integrality of metallic fiber streamline is ensure that simultaneously, makes every mechanical property of forging part can reach design requirement.

Description

The forging method and forging mold of big guide rail forging part peculiar to vessel
Technical field
The present invention relates to technical field of forging, and in particular to a kind of forging method and forge mould of big guide rail forging part peculiar to vessel Tool.
Background technology
Guide rail is a kind of crucial and important part of comparison on big ship, using PH stainless steel material system Make, the requirement such as its intensity, toughness, mechanical property, grain size, corrosion resistance is very high, non-metallic inclusion, macrostructure and ultrasonic wave The quality requirements such as flaw detection are also very high.In addition, the structure of guide rail is very complicated, part main body is in cross structure, in part main body Three vertical direction have the pit or groove that of different sizes, shape is different, width is different, belong to the die forging of twig complex class shape Part.Therefore, development of the manufacture of big stainless steel guide rail forging part peculiar to vessel to the big ship and defence equipment in China is extremely important.
At present, the production method of such part mainly has two kinds, and one kind is in forging equipment die forging, is adapted to high-volume raw Production, but the die cost used in this method is high, forging flash spillage of material is more, and typically the 18% of forge weight is left The right side, and the production cycle is long, equipment investment is big;Another kind is forged using flat-die forging method, is reprocessed after first forging simple shape Shaping, it is adapted to the production of the general part of small batch, this method stock utilization is very low, is generally only 30% or so, adds Work cost is high, and about 70% material will remove as waste material, and production cycle length, metal fibrous tissue are destroyed, its mechanics Performance does not reach design requirement.
Stainless steel guide rail on big ship, its forging horizontal projected area about 1800cm2, it is stainless using precipitation hardenable Steel material makes, and the prices of raw materials of making are very high.Carry out die forging according to die hammer, it is necessary to equipment tonnage be 100KN, phase The die cost answered is expensive, and its total cost of production is higher;Shaped according to flat-die forging method, its total cost of production is also very Height, and its mechanical property and grain size etc. do not reach design requirement yet.
The content of the invention
The present invention provides a kind of forging method and forging mold of big guide rail forging part peculiar to vessel, to solve to adopt in the prior art Die cost is high, required equipment tonnage is big, spillage of material is more, production is all existing for forging equipment carries out die forging production guide rail Phase is long and the problems such as production cost is big.
It is another object of the present invention to solve in the prior art using material existing for flat-die forging method production guide rail Utilization rate is low, production cost is high, the production cycle is long, metal fibrous tissue is destroyed and mechanical property does not reach design requirement etc. and asked Topic.
In a first aspect, the present invention provides a kind of forging method of big guide rail forging part peculiar to vessel, including:
Blank is subjected to jumping-up processing, prepares biscuit of the cross section for ellipse;
The biscuit is placed in progress pressure shoulder sub-material process in blanking mold, prepares cross section as criss-cross just base;
The just base is subjected to flat-die forging processing, prepares pre- forging stock;
The pre- forging stock is placed in progress die forging processing in mould, forges big guide rail forging part peculiar to vessel.
As the preferred embodiment of first aspect present invention, the cross section for preparing includes for the step of oval biscuit:
Stainless steel bar is subjected to blanking processing, prepares blank and heating that ratio of height to diameter is 2.4;
It is 1.3 that the blank heated is carried out jumping-up to handle to ratio of height to diameter vertically, then carries out the blank Riveting upsetting is handled, finally by 90 ° of major axis flat processing of progress jumping-up bat afterwards in the horizontal direction for making the blank of blank upset, system Standby cross section is oval biscuit.
As the preferred embodiment of first aspect present invention, the preparation cross section includes for the step of criss-cross just base:
The biscuit, which is placed under the base of blanking mold, in mould, makes the metallic fiber streamline edge level side of the biscuit To;
Mould pushes on the base of the blanking mold, by the biscuit upsetting squeeze into cross section for it is criss-cross just base, wherein Both sides of the biscuit along oval short-axis direction form two brachyplasts of the just base, biscuit edge ellipse after by upsetting squeeze The both sides of long axis direction form two long shoots of the just base after by upsetting squeeze.
As the preferred embodiment of first aspect present invention, described the step of preparing pre- forging stock, includes:
The just brachyplast of base and the long shoot are subjected to pulling processing respectively, after trimmed and correction, prepare pre- forging stock;Wherein Two brachyplasts form two short branches of the pre- forging stock, and two long shoots form two lower surfaces of the pre- forging stock For the long branch on inclined-plane.
As the preferred embodiment of first aspect present invention, described the step of preparing the biscuit that cross section is ellipse, prepare Cross section for it is criss-cross just base the step of, prepares the step of pre- forging stock and forging greatly guide rail forging part peculiar to vessel the step of in, Initial forging temperature is 1180 DEG C, and final forging temperature is 900 DEG C.
As the preferred embodiment of first aspect present invention, the preparation cross section is at the beginning of criss-cross the step of base and institute In the step of stating forging big guide rail forging part peculiar to vessel, the preheating temperature of the blanking mold and the mould is 200~ 300℃。
The forging method of big guide rail forging part peculiar to vessel provided by the invention, by being optimized to each step in forging process And devise corresponding mould, it is possible to achieve produce what larger tonnage plants can just be produced in the equipment of smaller tonnage Stainless steel guide rail forging part, and stock utilization is improved, the production cycle is shortened, production cost is reduced, ensures simultaneously The integrality of metallic fiber streamline, makes every mechanical property of forging part can reach design requirement.
Second aspect, the present invention provide a kind of forging mold of big guide rail forging part peculiar to vessel, including blanking mold and shaping Mould;
Wherein, the mould includes shaping upper, shaping lower mould, movable cushion block and moves back die-cushion, the shaping upper Middle position be provided with elongated raised portion, the both sides in the elongated raised portion are arranged with square protruding portion, described square convex The opposite two sides in the portion of rising are inclined-plane;The shaping drag chamber of the oriented lower recess of molding bottom die, the movable cushion block are set In the shaping drag chamber bottom, the movable cushion block is strip, the axial direction of the movable cushion block and the elongated raised Axially vertical, the lower section moved back die-cushion and be located at the movable cushion block in portion;Mould and described under the shaping upper, the shaping The internal cavity shape that movable cushion block is formed after being combined is identical with the outer shape of forging part.
As the preferred embodiment of second aspect of the present invention, positioned at movable cushion block axial direction both sides in mould under the shaping The pattern draft of two sides is 1.5 °;The pattern draft of the shaping upper is 10 °.
Along its axial two sides it is inclined-plane in the movable cushion block as the preferred embodiment of second aspect of the present invention, institute Stating inclined-plane has 20 ° of inclination angle.
As the preferred embodiment of second aspect of the present invention, the blanking mold includes mould and base on the base of mutual cooperation Lower mould, the base mold have a model cavity on concave up sunken step base, the oriented lower recess of mould under the base Step base drag chamber;The internal cavity shape that mould is formed after being combined under mould and the base on the base and first base Outer shape it is identical.
The forging mold of big guide rail forging part peculiar to vessel provided by the invention, by preparing just base and forging guide rail forging part During design and improve corresponding blanking mold and mould, it is possible to achieve the next life in the equipment of smaller tonnage The stainless steel guide rail forging part that larger tonnage plants can just be produced is produced, and improves stock utilization, shortens production week Phase, production cost is reduced, while ensure that the integrality of metallic fiber streamline, make every mechanical property of forging part can be with Reach design requirement.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings Accompanying drawing.
Fig. 1 is the preparation flow figure of biscuit in the forging method of guide rail forging part peculiar to vessel greatly provided in an embodiment of the present invention;
Fig. 2 is the preparation flow figure of first base in the forging method of guide rail forging part peculiar to vessel greatly provided in an embodiment of the present invention;
Fig. 3 is the structural representation of pre- forging stock in the forging method of guide rail forging part peculiar to vessel greatly provided in an embodiment of the present invention Figure;
Fig. 4 is that another structure of pre- forging stock in the forging method of guide rail forging part peculiar to vessel greatly provided in an embodiment of the present invention is shown It is intended to;
Fig. 5 is that the structure of the forging method middle guide forging part of big guide rail forging part peculiar to vessel provided in an embodiment of the present invention is shown It is intended to;
Fig. 6 is along the profile of E-E lines in Fig. 5;
Fig. 7 is Fig. 5 right view;
Fig. 8 is the three-dimensional knot of the forging method middle guide forging part of big guide rail forging part peculiar to vessel provided in an embodiment of the present invention Structure schematic diagram;
Fig. 9 is the another vertical of the forging method middle guide forging part of big guide rail forging part peculiar to vessel provided in an embodiment of the present invention Body structural representation;
Figure 10 is that the structure of mould in the forging mold of guide rail forging part peculiar to vessel greatly provided in an embodiment of the present invention is shown It is intended to;
Figure 11 is along the profile of line A-A in Figure 10.
Figure 12 is that the structure of blanking mold in the forging mold of guide rail forging part peculiar to vessel greatly provided in an embodiment of the present invention is shown It is intended to;
Wherein, 1, shaping upper, 2, the lower mould of shaping, 3, movable cushion block, 4, move back die-cushion, 5, guide pin bushing, 6, guide pillar, 7, on base Mould, 8, mould under base.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention Formula is described in further detail.
The embodiment of the present invention provides a kind of forging method of big guide rail forging part peculiar to vessel, and the forging method includes following step Suddenly:
101st, blank is subjected to jumping-up processing, prepares biscuit of the cross section for ellipse.
102nd, biscuit is placed in progress pressure shoulder sub-material process in blanking mold, prepares cross section as criss-cross just base.
103rd, first base is subjected to flat-die forging processing, prepares pre- forging stock.
104th, pre- forging stock is placed in progress die forging processing in mould, forges big guide rail forging part peculiar to vessel.
The forging method of big guide rail forging part peculiar to vessel provided by the invention, by being optimized to each step in forging process And devise corresponding mould, it is possible to achieve produce what larger tonnage plants can just be produced in the equipment of smaller tonnage Stainless steel guide rail forging part, and stock utilization is improved, the production cycle is shortened, production cost is reduced, ensures simultaneously The integrality of metallic fiber streamline, makes every mechanical property of forging part can reach design requirement.
On the basis of above-described embodiment, shown in reference picture 1, step 101, that is, biscuit tool of the cross section for ellipse is prepared Body can be implemented in accordance with the following steps:
1011st, stainless steel bar is subjected to blanking processing, prepares blank and heating that ratio of height to diameter is 2.4.
In the step, by stainless steel bar in sawing machine loading and unloading, the blank that ratio of height to diameter is 2.4 is prepared.By the Gao Jing of blank Than being preferably 2.4, it is therefore an objective to increase forging ratio.In the present embodiment, φ 120mm stainless steel bar, the length after blanking are chosen For 288mm, ratio of height to diameter 2.4.
1012nd, it is 1.3 to carry out jumping-up vertically to handle to ratio of height to diameter by the blank heated, then by the blank Riveting upsetting processing is carried out, the blank finally is overturn into 90 ° makes the major axis of the blank carry out the flat place of jumping-up bat afterwards in the horizontal direction Reason, prepare biscuit of the cross section for ellipse.
In the step, riveting upsetting operation and deflecting jumping-up are additionally used during carrying out jumping-up processing to the blank after blanking Clap flat operation, so as to the metallic fiber streamline of forging part that ensures finally to forge it is complete, be reasonably distributed.In addition, existing skill The cross section of biscuit is generally rectangular in art, is preferably oval, the base so at the beginning of follow-up preparation in the embodiment of the present invention During, material is easier to be full of in criss-cross blanking mold, without increasing clout, and may further ensure that metal fibre Streamline is tieed up completely without being cut off.
On the basis of above-described embodiment, shown in reference picture 2, step 102, that is, cross section is prepared as criss-cross just base tool Body can be implemented in accordance with the following steps:
1021st, being placed in biscuit under the base of blanking mold in mould, makes the metallic fiber streamline of biscuit in the horizontal direction.
In the step, the metallic fiber streamline of biscuit need to be ensured along water when biscuit is placed under the base of blanking mold in mould Square to, so when on base mould push upsetting squeeze is carried out to biscuit when, the metallic fiber streamline of material is continuous, complete.
1022nd, mould pushes on the base of blanking mold, by biscuit upsetting squeeze into cross section be criss-cross just base, wherein biscuit Formed along the both sides of oval short-axis direction after by upsetting squeeze just base two brachyplasts, both sides of the biscuit along oval long axis direction by Two long shoots of just base are formed after upsetting squeeze.
In the step, pressure shoulder sub-material is carried out to biscuit when mould closes under mould on base and base, utilizes the complete of biscuit Symmetry, the accurate sub-material to oval biscuit is completed in blanking mold.Meanwhile biscuit be during pressure shoulder in blanking mold by Extruding force shapes, and metallic fiber streamline is continuous whole, is made metal fine by shearing force shaping when solving traditional rectangular biscuit pressure shoulder Tie up the problem of streamline is cut off.Also, clout need not be increased during pressure shoulder, when solving traditional rectangular biscuit pressure shoulder because of length not Clout need to enough be increased, and clout is finally removed the problem of becoming waste material, is effectively saved material.
Wherein, the blanking mold described in the embodiment of the present invention includes on the base that cooperates mould, system under mould and base Base mold has a model cavity on concave up sunken step base, the step base drag of the oriented lower recess of mould under base Chamber, the internal cavity shape that mould is formed after being combined under mould and base on base are identical with the outer shape of first base.
On the basis of above-described embodiment, step 103, that is, preparing pre- forging stock can specifically implement as follows:
The brachyplast of first base and long shoot are subjected to pulling processing respectively, after trimmed and correction, prepare pre- forging stock;Two of which Brachyplast forms two short branches of pre- forging stock, and two lower surfaces that two long shoots form pre- forging stock are the long branch on inclined-plane.
In the step, the brachyplast of first base and long shoot are subjected to pulling processing respectively, mainly done for follow-up die forging process Prepare, can provide shape more rationally, the more accurate pre- forging stock of size Control, ensure pre- forging stock finally in mould Metal material can be completely filled with impression during die forging, forging part overlap is full of in the bridge portion of overlap, not have in the storehouse portion of overlap More overlap waste material, so as to save material.Shown in the concrete shape reference picture 3 and Fig. 4 of the pre- forging stock prepared in this step.
Step 104, that is, in the step of forging big guide rail forging part peculiar to vessel, the mould of use include shaping upper, into Mould, movable cushion block and die-cushion is moved back under type, the internal cavity that wherein shaping upper, the lower mould of shaping and movable cushion block are formed after being combined Shape is identical with the outer shape of forging part.
In the step, it is possible to achieve the stainless steel that larger tonnage plants can just be produced is produced in the equipment of smaller tonnage Guide rail forging part.Mould is placed on the lower anvil of 30KN Single arms, die-cushion, movable cushion block will be moved back successively and heated pre- Forging stock, which is put under the shaping of mould, carries out die forging in mould.Shaping upper is taken out with operation machine after the completion of die forging, will be molded Lower mould overturns 180 °, and die-cushion is moved back in percussion, moves back die-cushion and is exited together with forging part and movable cushion block from lower mould, movable cushion block with Forging part can be also automatically separated.Forging part is finally placed on hot trimming in edger and goes deburring, that is, completes whole big ship With the manufacturing process of guide rail forging part.
For the concrete shape of the guide rail forging part referring in particular to shown in Fig. 5-Fig. 9, guide rail forging part top is long recessed with one Groove and two pits for being symmetrically arranged at long recess both sides, its underpart have two long narrow supporting legs and a wide groove. Wherein, Fig. 8 and Fig. 9 is the three-dimensional structure diagram of guide rail forging part, and it can more reflect the complexity of guide rail forging part structure.This is led It is a fiery one-shot forming during rail forging part die forging, ensure that deflection and metallic fiber streamline during final forging, forging part crystalline substance Granularity >=6 grade, the quality of guide rail forging part and every mechanical property can reach design requirement.
On the basis of above-described embodiment, in step 101, step 102, step 103 and step 104, initial forging temperature is 1180 DEG C, final forging temperature is 900 DEG C.The shaping of accurate control, more conducively material to forging temperature, and ensure metallic fiber stream Line it is complete.
On the basis of above-described embodiment, the mould that is used in the blanking mold and step 104 that are used in step 102 Preheating temperature be 200~300 DEG C, and be lubricated using water-based graphite.
The embodiment of the present invention also provides a kind of forging mold of big guide rail forging part peculiar to vessel, and the forging mold includes base mould Tool and mould.Shown in reference picture 10 and Figure 11, the mould includes shaping upper 1, the lower mould 2 of shaping, the and of movable cushion block 3 Move back die-cushion 4, the middle position of shaping upper 1 is provided with elongated raised portion 11, and the both sides in elongated raised portion 11 are arranged with square Lug boss 12, the opposite two sides in square protruding portion 12 are inclined-plane.The lower mould 2 of shaping has the shaping drag chamber to lower recess, Movable cushion block 3 is located at shaping drag chamber bottom, and movable cushion block 3 be strip, the axial direction and elongated raised portion 11 of movable cushion block 3 It is axially vertical, move back die-cushion 4 be located at movable cushion block 3 lower section.After shaping upper 1, the lower mould 2 of shaping and movable cushion block 3 are combined The internal cavity shape of formation is identical with the outer shape of forging part.
On the basis of above-described embodiment, it is molded in lower mould positioned at the pattern draft of the two sides of movable cushion block axial direction both sides It is 1.5 °, less pattern draft makes blow energy more concentrate, and is full of impression beneficial to metal material, therefore required equipment Tonnage can be reduced, and may be implemented on 30KN Single arms the production for the forging part for completing 100KN die hammers.Meanwhile 30KN Single arms No ejector, moving back die-cushion makes forging part to be smoothly stripped under this pattern draft.The pattern draft of shaping upper is 10 °, It can ensure that forging part does not glue shaping upper, be also beneficial to be stripped.
Along its axial two sides it is inclined-plane in movable cushion block 3, the inclined-plane has 20 ° on the basis of above-described embodiment Inclination angle.The damageable zone for being molded lower mould 2 is designed as movable cushion block 3, is easily changed, can effectively extend making for mould Use the life-span.Usually, movable cushion block 3 is commonly provided with two pieces, is used alternatingly during die forging.The inclination angle on the inclined-plane in movable cushion block 3 20 ° are designed as, is not only easily full of the position for being finally configured to two long narrow supporting legs on forging part, and after the forging part demoulding Easily movable cushion block 3 is set to be automatically separated with forging part, while the demoulding functions for also making to move back die-cushion 4 are achieved.
In addition, shaping upper 1 is provided with the guide pillar 6 for being oriented to, it is molded lower mould 2 and is provided with what is be engaged with the guide pillar 6 Guide pin bushing 5.
On the basis of above-described embodiment, shown in reference picture 12, blanking mold includes mould 7 and system on the base of mutual cooperation Mould 8 under base, mould 7 has a model cavity on the step base being recessed upwards on base, and mould 8 has the step to lower recess under base Formula base drag chamber, the internal cavity shape and the outer shape of first base that mould 8 is formed after being combined under mould 7 and base on base It is identical.The blanking mold is simple in construction, and four orientation are operable, low manufacture cost.
Finally, the forging method to big guide rail forging part peculiar to vessel provided in an embodiment of the present invention and forging mold are produced Stock utilization, mechanical property and the internal soundness of forging part are detected respectively, and its testing result is shown in Table the and of 1, table 2 respectively Shown in table 3.
The stock utilization table of comparisons of table 1
The forging part mechanical performance data table of the present invention of table 2
The forging part internal soundness tables of data of the present invention of table 3
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.

Claims (8)

  1. A kind of 1. forging method of big guide rail forging part peculiar to vessel, it is characterised in that including:
    Blank is subjected to jumping-up processing, prepares biscuit of the cross section for ellipse;
    The biscuit is placed in progress pressure shoulder sub-material process in blanking mold, prepares cross section as criss-cross just base;Specifically, The biscuit, which is placed under the base of blanking mold, in mould, makes the metallic fiber streamline of the biscuit in the horizontal direction;The system Mould pushes on the base of mold tool, by the biscuit upsetting squeeze into cross section be criss-cross just base, wherein the biscuit is along oval The both sides of shape short-axis direction form two brachyplasts of the just base, both sides of the biscuit along oval long axis direction after by upsetting squeeze Two long shoots of the just base are formed after by upsetting squeeze;
    The just base is subjected to flat-die forging processing, prepares pre- forging stock;
    The pre- forging stock is placed in progress die forging processing in mould, forges big guide rail forging part peculiar to vessel.
  2. 2. forging method according to claim 1, it is characterised in that described to prepare step of the cross section for oval biscuit Suddenly include:
    Stainless steel bar is subjected to blanking processing, prepares blank and heating that ratio of height to diameter is 2.4;
    It is 1.3 that the blank heated is carried out jumping-up to handle to ratio of height to diameter vertically, and the blank then is carried out into riveting upsetting Processing, finally by 90 ° of major axis flat processing of progress jumping-up bat afterwards in the horizontal direction for making the blank of blank upset, prepare horizontal Section is oval biscuit.
  3. 3. forging method according to claim 1, it is characterised in that described the step of preparing pre- forging stock includes:
    The just brachyplast of base and the long shoot are subjected to pulling processing respectively, after trimmed and correction, prepare pre- forging stock;Two of which The brachyplast forms two short branches of the pre- forging stock, and two lower surfaces that two long shoots form the pre- forging stock are oblique The long branch in face.
  4. 4. forging method according to claim 1, it is characterised in that described to prepare step of the cross section for oval biscuit Suddenly, prepare the step of cross section is criss-cross just base, prepare the step of pre- forging stock and forging guide rail forging part peculiar to vessel greatly In step, initial forging temperature is 1180 DEG C, and final forging temperature is 900 DEG C.
  5. 5. forging method according to claim 1, it is characterised in that described to prepare step of the cross section for criss-cross just base In rapid and described the step of forging big guide rail forging part peculiar to vessel, the preheating temperature of the blanking mold and the mould is equal For 200~300 DEG C.
  6. 6. a kind of forging mold of big guide rail forging part peculiar to vessel, it is characterised in that including blanking mold and mould;Wherein, The blanking mold includes on the base that cooperates that mould, the base mold have concave up sunken step under mould and base Model cavity on base, the step base drag chamber of the oriented lower recess of mould under the base;Mould and described on the base The internal cavity shape formed after mould is combined under base is identical with the outer shape of first base;
    The mould includes shaping upper, shaping lower mould, movable cushion block and moves back die-cushion, the centre position of the shaping upper Place is provided with elongated raised portion, the both sides in the elongated raised portion are arranged with square protruding portion, and the square protruding portion is opposite to each other Two sides are inclined-plane;The shaping drag chamber of the oriented lower recess of molding bottom die, the movable cushion block are located at the shaping Drag chamber bottom, the movable cushion block are strip, and the axial direction of the axial direction of the movable cushion block and the elongated raised portion is hung down Directly, the lower section moved back die-cushion and be located at the movable cushion block;Mould and the movable cushion block phase under the shaping upper, the shaping Internal cavity shape with reference to rear formation is identical with the outer shape of forging part.
  7. 7. forging mold according to claim 6, it is characterised in that be located at the movable cushion block axle under the shaping in mould Pattern draft to the two sides of both sides is 1.5 °;The pattern draft of the shaping upper is 10 °.
  8. 8. forging mold according to claim 6, it is characterised in that be along its axial two sides in the movable cushion block Inclined-plane, the inclined-plane have 20 ° of inclination angle.
CN201610780968.XA 2016-08-30 2016-08-30 The forging method and forging mold of big guide rail forging part peculiar to vessel Active CN106270326B (en)

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CN108655314B (en) * 2018-07-23 2019-12-13 许昌中兴锻造有限公司 Extrusion die forging process for differential spider forging

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CN105397010A (en) * 2015-12-14 2016-03-16 哈尔滨工业大学 Isothermal die forging forming die and method for rare earth magnesium alloy thin webbed supporting fork
CN105397001A (en) * 2015-12-02 2016-03-16 贵州安大航空锻造有限责任公司 Isothermal forging forming method of titanium alloy complex sheet forged piece

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JPH06126374A (en) * 1992-10-22 1994-05-10 Honda Motor Co Ltd Manufacture of aluminum-made suspension part for automobile
CN103406482A (en) * 2013-08-28 2013-11-27 哈尔滨工业大学 Isothermal forging forming die and method for 7075 aluminum alloy tapered casing
CN103736894A (en) * 2014-01-02 2014-04-23 中南大学 Isothermal forging die and forging technology thereof of magnesium alloy die forge piece of step type structure
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