Hot die forging die with positioning groove

Abstract

The utility model belongs to the technical field of forging, and particularly relates to a hot die forging die with a positioning groove. Comprising an upper die (1), a lower die (2) and a positioning groove (3), the positioning groove (3) is located in the center of the lower die (2), and a cavity formed between the upper die (1) and the lower die (2) is used for forming a forge piece; and the positioning groove (3) is a strip-shaped groove which is sunken downwards and is used for positioning the round bar material in the center of the cavity to prevent dislocation.

Description

Technical Field

[0001] The utility model belongs to the technical field of forging, and particularly relates to a hot die forging die with a positioning groove. Background Art

[0002] The hollow adjustable blade reduces the weight of the engine on the premise of ensuring better process performance and reducing the weight of the blade. The previous hollow adjustable blade was a free forging, with more forming heats, long cycle, and low material utilization rate. Content of the Utility Model

[0003] The purpose of the utility model is to provide a hot die forging die with a positioning groove, which assists in positioning the bar stock at the center of the die cavity, reduces the number of forming heats, and improves the forging forming efficiency.

[0004] The technical solution of the utility model is as follows:

[0005] A hot die forging die with a positioning groove is used for positioning a round bar stock at the center of the die cavity, and includes: an upper die 1, a lower die 2, and a positioning groove 3. Among them, the positioning groove 3 is located at the center of the lower die 2, and the cavity formed between the upper die 1 and the lower die 2 is used for forming a forging; the positioning groove 3 is a strip-shaped groove sunken downward, which is used to position the round bar stock at the center of the cavity to prevent dislocation.

[0006] Further, the die further includes: an exhaust groove 4; the exhaust groove 4 is located at the four edges of the bottom of the lower die 2, which is convenient for filling the corners.

[0007] Further, the die further includes: an ear piece 5; the ear piece 5 is located at the side edge corners of the lower die 2, which is convenient for filling the side corners.

[0008] Further, the die further includes: a jaw 6; the jaw 6 is located at the center of the short side outside the cavity, which is convenient for taking out the forging.

[0009] Further, the cross-section of the jaw 6 is an inverted trapezoid.

[0010] Further, there are two jaws 6, which are respectively located at the centers of the two short sides outside the cavity.

[0011] The technical effect of the utility model is: for the die of the utility model, the positioning groove arranged at the center position of the lower die of the die fixes the round bar stock in the flat die cavity, which is not easy to roll, reduces the preform process, and is easier to form. The forging produced by using the die of the utility model can meet the physical and chemical performance requirements, improve the material utilization rate, and save energy and reduce consumption. And adopting this scheme can directly use the bar stock to form the forging without preforming. Description of the Drawings

[0012] Figure 1 It is a schematic structural diagram of the lower die of a hot die forging die with a positioning groove;

[0013] Figure 2 It is a sectional view of a hot forging die with a positioning groove;

[0014] Figure 3 It is a schematic diagram of the positioning groove;

[0015] Figure 4 It is a schematic diagram of the exhaust groove;

[0016] Figure 5 It is a schematic diagram of the lug;

[0017] Figure 6 It is a schematic diagram of the jaw;

[0018] Figure 7 It is a forging drawing.

[0019] Among them, there are upper die 1, lower die 2, positioning groove 3, exhaust groove 4, lug 5, and jaw 6. Specific implementation manner

[0020] A hot forging die with a positioning groove, used for forging slab-shaped forgings, includes: an upper die and a lower die; the positioning groove is located at the exact center of the lower die, and the cavity formed between the upper die and the lower die is used for forming the forging; the positioning groove is arranged at the center position of the lower die; the positioning groove is a strip-shaped groove that is recessed downward from the center of the cavity of the lower die, and is used to position the round bar stock at the center of the cavity to prevent misalignment.

[0021] It also includes: an exhaust groove; the exhaust groove is at the four edges of the bottom of the lower die, which is convenient for filling the corners.

[0022] It also includes: lugs; the lugs are at the side edges of the lower die, which is convenient for filling the side corners.

[0023] It also includes: jaws; the jaws are at the center of the short side outside the cavity, which is convenient for taking out the forging.

[0024] A heart-adjustable blade forging produced by a die with a positioning groove can ensure that the physical and chemical properties of the forging meet the requirements, improve the material utilization rate, directly form the forging, and reduce the number of forming heats.

[0025] The present utility model provides a die with a positioning groove, used for forging slab-shaped forgings, as Figures 1-7 shown, including: upper die 1, lower die 2, positioning groove 3, exhaust groove 4, lug 5, and jaw 6.

[0026] After heating the forging blank in the figure, transfer it to an isothermal forging closed die for extrusion to complete the forging forming.

[0027] The heating temperature of the bar for die forging is set at 960 °C; during rough die forging, the corresponding protective lubricant is sprayed on the rough shape; the die forging deformation is controlled to 25% - 55%, ensuring that the deformation range is preferably around 45%; the die forging impact energy is controlled within 20% - 40%.

[0028] Specifically: Place the Figure 2 bar stock on the positioning groove 3 of the lower die 2 of the die, and lower the upper die 1 to form the shape.

[0029] The exhaust groove 4 at the bottom of the cavity of the lower die 2 and the lug 5 on the side edge are conducive to the filling of the forging and filling it completely. After the forging is formed, control the upper die 2 to move upward, and use a crowbar to pry up the forging from the jaw 6 to separate the forging from the lower die.

[0030] The cooling method after die forging is air cooling to obtain the TC4 hollow adjustable vane forging.

Claims

1. A hot forging die with a positioning groove, used to position a round bar in the center of a forging die cavity, characterized in that: The mold includes: An upper die (1), a lower die (2), and a positioning groove (3), wherein the positioning groove (3) is located at the center of the lower die (2), and a cavity formed between the upper die (1) and the lower die (2) is used for forming a forging; the positioning groove (3) is a strip-shaped groove that is concave downward and is used to position a round bar material at the center of the cavity to prevent dislocation.

2. The hot forging die according to claim 1, characterized in that: The mold further comprises: an exhaust groove (4); the exhaust groove (4) is located at four edges of the bottom of the lower mold (2) to facilitate filling of the edges and corners.

3. The hot forging die according to claim 1, characterized in that: The mold further comprises: an ear piece (5); the ear piece (5) is located at the side edge corner of the lower mold (2) to facilitate the filling of the side edge corner.

4. The hot forging die according to claim 1, characterized in that: The die also includes a jaw (6); the jaw (6) is located at the center of the short side outside the cavity to facilitate taking out the forging.

5. The hot forging die according to claim 1, characterized in that: The cross section of the jaws (6) is an inverted trapezoid.

6. The hot forging die according to claim 1, characterized in that: The jaws (6) are two and are respectively located at the centers of two short sides of the outer side of the cavity.

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