CN111085615A - Forming die and forming process for high-temperature alloy small-inner-diameter annular deep groove component - Google Patents
Forming die and forming process for high-temperature alloy small-inner-diameter annular deep groove component Download PDFInfo
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- CN111085615A CN111085615A CN201911230034.9A CN201911230034A CN111085615A CN 111085615 A CN111085615 A CN 111085615A CN 201911230034 A CN201911230034 A CN 201911230034A CN 111085615 A CN111085615 A CN 111085615A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/22—Deep-drawing with devices for holding the edge of the blanks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/24—Deep-drawing involving two drawing operations having effects in opposite directions with respect to the blank
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
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- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses a forming die and a forming process of a high-temperature alloy small-inner-diameter annular deep groove component, wherein the die comprises an upper convex die plate, an upper convex die, a blank holder, a concave die plate, a lower convex die and a lower convex die plate; in the forming process, the upper male die descends to the bottom of the female die to press the blank into a cylinder shape, the lower male die ascends to the top of the upper male die after the blank holder force is reduced to press the blank into an annular deep groove structure, and the upper male die and the lower male die are adopted to carry out sequential forming in a forward direction and a reverse direction and carry out annealing treatment and shape correction after forming, so that the problems of cracking, rebounding and the like in the forming process of the component are greatly reduced, the qualification rate of the product is effectively improved, and the qualification rate of the component can reach 95% after one-time processing; the three functions of forward and reverse twice forming and shape correction can be realized by one set of die, the die cost is low, the steps are simple, and the process is easy to control.
Description
Technical Field
The invention relates to a forming die and a forming process of an annular deep groove component, in particular to a forming die and a forming process of a high-temperature alloy small-inner-diameter annular deep groove component, and belongs to the technical field of plate forming.
Background
The annular deep groove (H is more than 0.2D, the height of the H component and the inner diameter of the D annular deep groove) component is a common metal plate forming component of an aeronautic engine and an aerospace engine, and the shape and the size precision of the component have important influence on the performance of the engine, wherein the high-temperature alloy small-inner-diameter annular deep groove component is shown in figure 1 and is characterized in that the component is made of high-temperature alloy, the component is of a deep groove structure, the diameter of an inner ring of the annular deep groove is small, and the forming difficulty is large. For the forming of the component, the difficulty is that the size precision is poor after the forming due to the large forming resilience of the high-temperature alloy part, the forming requirement of the inner blank of the deep groove cannot be supplemented in the forming process due to the small-inner-diameter deep groove structure, if the traditional steel die and the annular blank are used for forming, the forming precision is poor, the requirements of the shape and the size precision of the product cannot be met, and the forming requirement of the inner ring cannot be supplemented by the inner blank in the forming process, the inner ring is seriously thinned until the inner ring is broken, so that the product cannot be formed or the forming qualification rate is low.
Disclosure of Invention
In view of the above, the invention provides a forming die and a forming process for a high-temperature alloy small-inner-diameter annular deep groove component, and the forming method is simple and the shape and size precision of the component are high.
A forming die for a high-temperature alloy small-inner-diameter annular deep groove component comprises an upper convex die plate, an upper convex die, a blank holder, a concave die plate, a lower convex die and a lower convex die plate; the upper male die is fixed on the upper male die plate, the appearance of the upper male die is the same as the inner molded surface of the component, the upper male die is used as a male die of a female die and a female die of a lower male die simultaneously in the forming process, the lower male die is fixed on the lower male die plate, the female die is fixed on the female die plate, and the upper end of the female die is provided with a blank fixing groove with the depth lower than the thickness of a blank and used; the female die is positioned between the upper male die and the lower male die;
in the forming process, an upper convex template, a blank holder, a concave template and a lower convex template in the die are respectively connected to a main slide block, a blank holder slide block, a lower platform and a hydraulic cushion of a double-acting hydraulic press.
A forming process of a high-temperature alloy small-inner-diameter annular deep groove component comprises the following implementation steps:
the method comprises the following steps: laser cutting a circular blank;
step two: bidirectional forming a component by adopting a forming die;
step three: carrying out vacuum stress relief annealing on the component by using a vacuum heat treatment furnace;
step four: laser cutting the redundant flange part blank of the formed component;
step five: utilizing a die to correct the shape of the component;
step six: and grinding the open end of the member to the theoretical height of the member.
Further, the forming process of the second step comprises:
the first step is as follows: respectively installing an upper convex template, a blank holder, a female die and a lower convex template on a double-acting hydraulic press, installing the upper convex template on a main sliding block, installing the blank holder on a blank holder sliding block, installing the female die on a lower platform, installing the lower convex template on a hydraulic cushion, and adjusting the gaps of an upper male die, the female die and the lower male die;
the second step is that: coating a lubricant on the front and back surfaces of the circular blank, placing the circular blank in a female die blank fixing groove, enabling a blank pressing slide block to descend to a blank pressing ring to press the blank with proper blank pressing force, and driving an upper male die to descend to form the blank until the bottom of a female die by a main slide block to finish forward forming;
the third step: and adjusting the pressure of the blank holder slide block and the pressure of the main slide block to proper values, tightly pressing the blank by the blank holder and the male die, driving the lower male die to ascend to the top of the upper male die by the hydraulic cushion, finishing reverse forming, and taking out the component.
Has the advantages that:
1. the invention adopts a circular blank and a set of die forward and backward forming process, firstly forms a cylindrical component in a forward direction, then forms an annular deep groove component in a backward direction, and enables the outer ring blank of the deep groove to flow and supplement the inner ring to be formed by adjusting the blank holder force and the forming force in the backward process, thereby solving the problem of inner ring fracture caused by the shortage of the inner ring blank.
2. The process adopts a combination mode of shaping, vacuum stress relief annealing and flange cutting, and finally, the combination of three processing procedures and the processing sequence thereof enable the clearance of the part sample plate to be not more than 0.5mm in the combination mode of shape correction, thereby solving the problem of poor shaping precision caused by large resilience of high-temperature alloy components.
3. The invention can simultaneously carry out forward and backward forming and shape correction by one set of die, and has the advantages of simple die, simple steps and easy process control.
Drawings
FIG. 1 is a schematic structural view of a small inner diameter annular deep groove member;
FIG. 2 is a schematic structural view of a component of the present invention before forming;
FIG. 3 is a schematic structural view of the component of the present invention after forward forming;
FIG. 4 is a schematic structural view (a structural view of a mold) of the member of the present invention after reverse forming.
FIG. 5 is a flow chart of the forming process of the present invention.
Wherein, 1-upper convex template, 2-upper convex template, 3-blank holder, 4-concave template, 5-concave template, 6-lower convex template, 7-lower convex template and 8-blank.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
The invention provides a forming die and a forming process for a high-temperature alloy small-inner-diameter annular deep groove component, wherein the forming die is structurally shown in figure 4 and comprises an upper convex die plate 1, an upper convex die 2, a blank holder 3, a concave die 4, a concave die plate 5, a lower convex die 6 and a lower convex die plate 7; the upper male die 2 is fixed on the upper male die plate 1, the shape of the upper male die 2 is basically the same as the inner profile of a component, the upper male die 2 is used as a male die of a female die 4 and a female die of a lower male die 6 in the forming process, the lower male die 6 is fixed on a lower male die plate 7, the female die 4 is fixed on a female die plate 5, the female die 4 (the upper end of which is provided with a blank fixing groove with the depth lower than the thickness of a blank and used for placing the blank, and the upper male die plate 1, the blank holder 3, the female die plate 5 and the lower male die plate 7 of the die in the forming process are respectively connected to a.
The forming process of the invention is shown in the attached figure 5:
the method comprises the following steps: laser cutting a circular blank;
step two: utilizing a forming die to bidirectionally form the high-temperature alloy small-inner-diameter annular deep groove component;
respectively installing an upper convex template 1, a blank holder 3, a female die 4 and a lower convex template 7 on a double-acting hydraulic press, installing the upper convex template 1 on a main sliding block, installing the blank holder 3 on the blank holder sliding block, installing the female die on a lower platform, installing the lower convex template 7 on a hydraulic cushion, adjusting the gaps of an upper convex die 2, the female die 4 and a lower convex die 6, and enabling the state before forming to be as shown in the attached figure 2;
smearing a lubricant on the front and back surfaces of the circular blank 8, placing the circular blank in a female die blank fixing groove, enabling a blank pressing slide block to descend to a blank pressing ring 3 to tightly press the blank 8 with proper blank pressing force, and enabling a main slide block to drive an upper male die 2 to descend to form the blank till the bottommost part of a female die 4 to finish forward forming, wherein the forward forming is shown in an attached drawing 3;
adjusting the pressure of the blank holder slide block and the pressure of the main slide block to proper values, tightly pressing the blank by the blank holder and the male die, driving the lower male die 6 to move upwards to the top of the upper male die 2 by the hydraulic cushion to finish reverse forming, and taking out a component, as shown in the attached figure 4;
step three: the vacuum heat treatment furnace carries out vacuum stress relief annealing on the component which completes the forward and reverse bidirectional forming;
step four: laser cutting the redundant flange part blank of the formed component;
step five: placing the laser-cut component on a die for shape correction; in the process, the upper convex template 1 is arranged on the main sliding block, the female die 4 is arranged on the lower platform, after the die gap is adjusted, the main sliding block drives the upper convex die 2 to move downwards until the bottom of the female die 4 is corrected, and the part is taken out;
step five: polishing the open end of the member to the theoretical height of the member;
step six: and obtaining a qualified product.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A forming die for a high-temperature alloy small-inner-diameter annular deep groove component is characterized by comprising an upper convex die plate, an upper convex die, a blank holder, a concave die plate, a lower convex die and a lower convex die plate; the upper male die is fixed on the upper male die plate, the appearance of the upper male die is the same as the inner molded surface of the component, the upper male die is used as a male die of a female die and a female die of a lower male die simultaneously in the forming process, the lower male die is fixed on the lower male die plate, the female die is fixed on the female die plate, and the upper end of the female die is provided with a blank fixing groove with the depth lower than the thickness of a blank and used; the female die is positioned between the upper male die and the lower male die;
in the forming process, an upper convex template, a blank holder, a concave template and a lower convex template in the die are respectively connected to a main slide block, a blank holder slide block, a lower platform and a hydraulic cushion of a double-acting hydraulic press.
2. A forming process of a high-temperature alloy small-inner-diameter annular deep groove component, which adopts the forming die of claim 1, and is characterized in that the forming process is realized by the following steps:
the method comprises the following steps: laser cutting a circular blank;
step two: bidirectional forming a component by adopting a forming die;
step three: carrying out vacuum stress relief annealing on the component by using a vacuum heat treatment furnace;
step four: laser cutting the redundant flange part blank of the formed component;
step five: utilizing a die to correct the shape of the component;
step six: and grinding the open end of the member to the theoretical height of the member.
3. The process for forming a superalloy small-inside-diameter annular deep groove member as claimed in claim 2, wherein the forming process of the second step comprises:
the first step is as follows: respectively installing an upper convex template, a blank holder, a female die and a lower convex template on a double-acting hydraulic press, installing the upper convex template on a main sliding block, installing the blank holder on a blank holder sliding block, installing the female die on a lower platform, installing the lower convex template on a hydraulic cushion, and adjusting the gaps of an upper male die, the female die and the lower male die;
the second step is that: coating a lubricant on the front and back surfaces of the circular blank, placing the circular blank in a female die blank fixing groove, enabling a blank pressing slide block to descend to a blank pressing ring to press the blank with proper blank pressing force, and driving an upper male die to descend to form the blank until the bottom of a female die by a main slide block to finish forward forming;
the third step: and adjusting the pressure of the blank holder slide block and the pressure of the main slide block to proper values, tightly pressing the blank by the blank holder and the male die, driving the lower male die to ascend to the top of the upper male die by the hydraulic cushion, finishing reverse forming, and taking out the component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911230034.9A CN111085615A (en) | 2019-12-04 | 2019-12-04 | Forming die and forming process for high-temperature alloy small-inner-diameter annular deep groove component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911230034.9A CN111085615A (en) | 2019-12-04 | 2019-12-04 | Forming die and forming process for high-temperature alloy small-inner-diameter annular deep groove component |
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| CN111085615A true CN111085615A (en) | 2020-05-01 |
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| CN201911230034.9A Pending CN111085615A (en) | 2019-12-04 | 2019-12-04 | Forming die and forming process for high-temperature alloy small-inner-diameter annular deep groove component |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112517756A (en) * | 2020-10-28 | 2021-03-19 | 中国航发成都发动机有限公司 | Forming die and forming process for fork-shaped unequal-diameter sleeve |
| CN112620497A (en) * | 2020-12-21 | 2021-04-09 | 中船重工西安东仪科工集团有限公司 | Reverse local forming device and method for box-shaped part |
| CN115301847A (en) * | 2022-08-23 | 2022-11-08 | 广联航空工业股份有限公司 | Forming method of sheet metal cover type parts |
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| CN204035356U (en) * | 2014-08-13 | 2014-12-24 | 张坤地 | A kind of air-cleaner box forward and backward compound drawing die |
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| KR101952668B1 (en) * | 2019-01-15 | 2019-02-27 | 주식회사 코디마 | Method for manufacturing coil housing |
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2019
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| CN200995480Y (en) * | 2006-12-28 | 2007-12-26 | 扬州捷迈锻压机械有限公司 | Double-acting hydraulic press with composite drawing function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112517756A (en) * | 2020-10-28 | 2021-03-19 | 中国航发成都发动机有限公司 | Forming die and forming process for fork-shaped unequal-diameter sleeve |
| CN112620497A (en) * | 2020-12-21 | 2021-04-09 | 中船重工西安东仪科工集团有限公司 | Reverse local forming device and method for box-shaped part |
| CN115301847A (en) * | 2022-08-23 | 2022-11-08 | 广联航空工业股份有限公司 | Forming method of sheet metal cover type parts |
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Application publication date: 20200501 |
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