CN114589280A - High-temperature antioxidant alloy die forging die and die forging method thereof - Google Patents
High-temperature antioxidant alloy die forging die and die forging method thereof Download PDFInfo
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- CN114589280A CN114589280A CN202210410524.2A CN202210410524A CN114589280A CN 114589280 A CN114589280 A CN 114589280A CN 202210410524 A CN202210410524 A CN 202210410524A CN 114589280 A CN114589280 A CN 114589280A
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- 238000005242 forging Methods 0.000 title claims abstract description 43
- 239000000956 alloy Substances 0.000 title claims abstract description 32
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000003963 antioxidant agent Substances 0.000 title description 2
- 230000003078 antioxidant effect Effects 0.000 title description 2
- 230000003647 oxidation Effects 0.000 claims abstract description 27
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000007493 shaping process Methods 0.000 claims description 16
- 238000000465 moulding Methods 0.000 claims description 7
- 239000000314 lubricant Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
- B21J5/025—Closed die forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention relates to a high-temperature oxidation-resistant alloy die forging die and a die forging method thereof, wherein the die forging die comprises an upper die and a lower die, the upper die is connected with a press, the lower die comprises a bottom plate and a die cavity body, a forming cavity is formed in the die cavity body, a forming step of a flange ring of a formed forging is arranged in the forming cavity, the upper die comprises a forming punch penetrating into the forming cavity, the forming punch comprises a forming end face positioned on the forming step and a punch part penetrating into a blank, and the die forging method comprises the steps of 1) heating the blank, 2) discharging the blank out of a furnace and placing the blank into the lower die, 3) closing the die and forging, and 4) cooling the forging; the high-temperature oxidation resistant alloy die forging die and the die forging method thereof enable the high-temperature oxidation resistant alloy to be fully filled, avoid unqualified due to material shortage, improve the utilization rate of raw materials, save the cost and prolong the service life of the die.
Description
Technical Field
The invention relates to high-temperature oxidation-resistant alloy die forging, in particular to a high-temperature oxidation-resistant alloy die forging die and a die forging method thereof.
Background
In the prior art, the die forging processing is adopted when the high-temperature oxidation resistant alloy forge piece is processed in the production process, because the high-temperature oxidation resistant alloy has the reasons of large deformation resistance and poor metal fluidity, when the high-temperature oxidation resistant alloy is processed, as shown in figure 1, the high-temperature oxidation resistant alloy can not be filled to the edge position of a flange ring when the flange ring is formed, so that the forge piece is scrapped due to material shortage.
Disclosure of Invention
In view of the above disadvantages of the prior art, an object of the present invention is to provide a high temperature oxidation resistant alloy die forging mold and a die forging method thereof, which solve one or more problems of the prior art.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides a high temperature oxidation resistant alloy die forging mould, includes mould and bed die, goes up the mould and connects the press, the bed die includes bottom plate and the die cavity body, set up the die cavity in the die cavity body, the shaping step that includes shaping forging flange ring in the shaping cavity, it is including penetrating the shaping drift in the shaping cavity to go up the mould, the shaping drift is including the shaping terminal surface that is located the shaping step and penetrating the drift portion in the blank.
As a further improvement of the above technical solution:
the molding cavity further comprises a conical cavity and a vertical cavity, and fillets are formed at the joint of the vertical cavity and the conical cavity and at the joint of the conical cavity and the vertical cavity.
The punch head part also comprises a lower conical section and an upper conical section, and the periphery of the lower end of the lower conical section, the joint of the lower conical section and the upper conical section and the joint of the upper conical section and the forming end face are all processed into round corners.
The upper die is connected with the outer positioning ring, and the lower die is positioned by the inner side surface of the outer positioning ring matched with the outer side surface of the die cavity of the lower die.
A die forging method for high-temperature oxidation-resistant alloy comprises the following steps:
1) heating the blank: feeding the blank into a heating furnace, heating the blank to 1150 ℃, and preserving heat for 60 min;
2) discharging the blank out of the furnace, and putting the blank into a lower die: taking the heated blank out of the heating furnace, placing the blank into a forming cavity of a lower die, and righting the position of the blank;
3) die assembly forging: the press drives the upper die to descend, so that the upper die and the lower die are closed, the punch head part of the upper die penetrates into the blank, the forming end face is pressed at the upper end of the blank, and the blank is forged and formed into a forge piece by matching the punch head part with the forming cavity and matching the forming end face with the forming step;
4) cooling the forged piece: and the press drives the upper die to ascend and open the die, takes the forge piece out of the lower die, and cools the forge piece to room temperature in an air cooling mode.
As a further improvement of the above technical solution:
the upper mold and the lower mold need to be preheated to 250-350 ℃.
Before the blank is discharged from the furnace, a layer of high-temperature alloy lubricant needs to be uniformly coated in a forming cavity of a lower die.
The upper die and the lower die are quickly positioned by matching the outer positioning ring of the upper die with the outer shape of the die cavity body of the lower die.
Compared with the prior art, the invention has the following beneficial technical effects:
1) the molding end surface formed by the upper die is matched with the molding step in the molding cavity of the lower die, and the whole surface contact of the upper end surface is changed from the middle contact, so that the high-temperature oxidation-resistant alloy is fully filled, and disqualification caused by material shortage is avoided;
2) the allowance of the flange ring is not required to be increased, the polishing amount is reduced, and the utilization rate of raw materials is reduced;
3) the corresponding positions of the upper die forming punch and the lower die forming cavity are processed into fillets, so that a product is in a fillet structure formed in one step, the surface is round, the polishing amount is reduced, and the utilization rate of raw materials is further improved;
4) the upper die is connected with an outer positioning ring, the outer positioning ring is matched with the shape of a die cavity of the lower die, so that the upper die and the lower die can be quickly positioned without additionally arranging a guide mechanism;
5) through improving one shot forming qualification rate, reduce the mould loss, improve the mould life-span.
Drawings
Fig. 1 shows a schematic view of a conventional high temperature oxidation resistant alloy die forging.
Fig. 2 shows a sectional view of the high temperature oxidation resistant alloy die forging die of the present embodiment.
Fig. 3 shows a sectional view of the upper die of the high temperature oxidation resistant alloy forging die of the present embodiment.
Fig. 4 shows a sectional view of the high temperature oxidation resistant alloy die forging die lower die of the present embodiment.
In the drawings, the reference numbers:
1. an upper die; 11. forming a punch; 111. molding an end face; 112. punching the head part; 12. an outer positioning ring; 2. a lower die; 21. a base plate; 22. a mold cavity; 221. a molding cavity; 222. and (5) forming steps.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the mold according to the present invention will be described in detail with reference to the accompanying drawings and the following detailed description. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise scale for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention comprehensible, reference is made to the accompanying drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the implementation of the present invention, so that the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.
As shown in fig. 2 to 4, the high-temperature oxidation-resistant alloy die forging die of the present embodiment includes an upper die 1 and a lower die 2, the upper die 1 is connected to a press, the lower die 2 includes a bottom plate 21 and a die cavity body 22, a die cavity 221 is formed in the die cavity body 22, a forming step 222 for forming a flange ring of a forging is included in the forming cavity 221, the upper die 1 includes a forming punch 11 penetrating into the forming cavity 221, and the forming punch 11 includes a forming end surface 111 located on the forming step 222 and a punch portion 112 penetrating into a blank.
The forming cavity 221 further comprises a conical cavity and a vertical cavity, fillets are formed at the joints of the vertical cavity and the conical cavity and at the joints of the conical cavity and the vertical cavity, the matched punch part 112 also comprises a lower conical section and an upper conical section, fillets are formed at the periphery of the lower end of the lower conical section, the joints of the lower conical section and the upper conical section, the joints of the upper conical section and the forming end face 111, and the inner part and the outer transition area of the formed forging and the joints of the edges and corners are formed into circular arcs in one step without polishing.
The upper die 1 is connected with the outer positioning ring 12, the upper die 1 is used for positioning the lower die 2 through the inner side surface of the outer positioning ring 12 matched with the outer side surface of the die cavity 22 of the lower die 2, the upper die 1 and the lower die 2 can be ensured to be positioned quickly, and a guide mechanism is not required to be additionally arranged.
The die forging method of the high-temperature oxidation-resistant alloy comprises the following steps:
1) heating the blank: feeding the blank into a heating furnace, heating the blank to 1150 ℃, preserving heat for 60min, simultaneously preheating an upper die 1 and a lower die 2 to 250-350 ℃, and preventing the blank from being rapidly cooled and hardened in the upper die 1 and the lower die 2;
2) discharging the blank out of the furnace, and putting the blank into a lower die: taking the heated blank out of the heating furnace, uniformly coating a layer of high-temperature alloy lubricant in the forming cavity 221 of the lower die 2 before the blank is discharged from the furnace, placing the blank in the forming cavity 221, and righting the position of the blank;
3) die assembly forging: the press drives the upper die 1 to descend, the outer positioning ring 12 of the upper die 1 is matched with the shape of the die cavity 22 of the lower die 2 to quickly position the upper die 1 and the lower die 2, the upper die 1 and the lower die 2 are matched, the punch part 112 of the upper die 1 penetrates into the blank, the forming end surface 111 presses the upper end of the blank, and the blank is forged and formed into a forging piece through the matching of the punch part 112 with the forming cavity 221 and the matching of the forming end surface 111 with the forming step 222;
4) cooling the forged piece: and the press drives the upper die 1 to ascend and open the die, takes out the forge piece from the lower die 2, and cools the forge piece to room temperature in an air cooling mode.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the spirit of the present invention, and these changes and modifications should fall within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.
Claims (8)
1. A high-temperature oxidation-resistant alloy die forging die is characterized in that: including last mould and bed die, go up the mould and connect the press, the bed die includes bottom plate and die cavity body, set up the die cavity in the die cavity body, including the shaping step of shaping forging flange ring in the shaping cavity, go up the mould including penetrating the shaping drift in the shaping cavity, the shaping drift is including the shaping terminal surface that is located on the shaping step and penetrating the drift portion in the blank.
2. The high-temperature oxidation-resistant alloy die forging die as recited in claim 1, wherein: the molding cavity further comprises a conical cavity and a vertical cavity, and fillets are formed at the joint of the vertical cavity and the conical cavity and at the joint of the conical cavity and the vertical cavity.
3. The high-temperature oxidation-resistant alloy die forging die as recited in claim 1, wherein: the punch head part also comprises a lower conical section and an upper conical section, and the periphery of the lower end of the lower conical section, the joint of the lower conical section and the upper conical section and the joint of the upper conical section and the forming end face are all processed into round corners.
4. The high-temperature oxidation-resistant alloy die forging die as recited in claim 1, wherein: the upper die is connected with the outer positioning ring, and the lower die is positioned by the inner side surface of the outer positioning ring matched with the outer side surface of the die cavity of the lower die.
5. A die forging method for high-temperature oxidation-resistant alloy comprises the following steps:
1) heating the blank: feeding the blank into a heating furnace, heating the blank to 1150 ℃, and preserving heat for 60 min;
2) discharging the blank out of the furnace, and putting the blank into a lower die: taking the heated blank out of the heating furnace, placing the blank into a forming cavity of a lower die, and righting the position of the blank;
3) die assembly forging: the press drives the upper die to descend, so that the upper die and the lower die are closed, the punch head part of the upper die penetrates into the blank, the forming end face is pressed at the upper end of the blank, and the blank is forged and formed into a forge piece by matching the punch head part with the forming cavity and matching the forming end face with the forming step;
4) cooling the forged piece: and the press drives the upper die to ascend and open the die, takes the forge piece out of the lower die, and cools the forge piece to room temperature in an air cooling mode.
6. The high temperature oxidation resistant alloy die forging method according to claim 5, wherein: the upper mold and the lower mold need to be preheated to 250-350 ℃.
7. The high temperature oxidation resistant alloy die forging method according to claim 5, wherein: before the blank is discharged from the furnace, a layer of high-temperature alloy lubricant needs to be uniformly coated in a forming cavity of a lower die.
8. The high temperature oxidation resistant alloy die forging method according to claim 1, wherein: the upper die and the lower die are quickly positioned by matching the outer positioning ring of the upper die with the outer shape of the die cavity body of the lower die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210410524.2A CN114589280A (en) | 2022-04-19 | 2022-04-19 | High-temperature antioxidant alloy die forging die and die forging method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210410524.2A CN114589280A (en) | 2022-04-19 | 2022-04-19 | High-temperature antioxidant alloy die forging die and die forging method thereof |
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| Publication Number | Publication Date |
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| CN114589280A true CN114589280A (en) | 2022-06-07 |
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| CN202210410524.2A Pending CN114589280A (en) | 2022-04-19 | 2022-04-19 | High-temperature antioxidant alloy die forging die and die forging method thereof |
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