Metal acetabular outer cup closed-type forging die and method

A closed forging and acetabular technology, which is applied to manufacturing tools, metal processing equipment, forging/pressing/hammer devices, etc., can solve the problems of difficult adjustment of forging equipment, low material utilization rate, and high production cost, and save raw materials. , The effect of low input cost and high production efficiency

Inactive Publication Date: 2020-03-24
无锡航亚科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the existing metal acetabular outer cups are all manufactured by open die forging process, there are technical problems such as complicated procedures, long manufacturing cycle, low material utilization rate, easy filling defects, difficult adjustment of forging equipment, and high production cost. The invention provides a metal acetabular outer cup closed forging die and a forging method, which can realize the closed forging of the metal acetabular outer cup, has fewer working steps, high production efficiency, high material utilization rate, and avoids filling defects. , Forging equipment adjustment is simple, low production cost

Method used

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  • Metal acetabular outer cup closed-type forging die and method
  • Metal acetabular outer cup closed-type forging die and method
  • Metal acetabular outer cup closed-type forging die and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Step 1, blanking, blank the φ35mm medical Ti6Al4V alloy bar, calculate the length of the bar accurately according to the volume of the acetabular cup, and fillet the upper and lower ends of the bar. The radius of the upper end fillet is R1=3mm, and the lower end is round Corner radius R2=10mm, complete blanking;

[0037] Step 2, spraying, heat the bar to 150°C and directly spray the glass-ceramic anti-oxidation coating, the coating thickness is 0.02mm;

[0038] Step 3, final forging, install the forging die on the electric screw press, the preset thermal expansion coefficient of the die cavity and punch of the forging die is 1.0~1.1, put the bar in step 2 into the electric furnace and heat to 900 ℃, the holding time is 30 minutes, and then take it out and put it into the pre-sprayed graphite mold for final forging to obtain the final forging. The forging direction is downward along the axis of the die cavity.

[0039] The mechanical properties of the final forging prod...

Embodiment 2

[0041] Step 1, blanking, blank the φ45mm medical Ti6Al4V alloy bar, calculate the length of the bar accurately according to the volume of the acetabular cup, and fillet the upper and lower ends of the bar. The radius of the upper end fillet is R1=5mm, and the lower end is round Corner radius R2=8mm, complete blanking;

[0042] Step 2, spraying, heat the bar to 200°C and directly spray the glass-ceramic anti-oxidation coating, the coating thickness is 0.11mm;

[0043] Step 3, final forging, install the forging die on the electric screw press, the preset thermal expansion coefficient of the die cavity and punch of the forging die is 1.0~1.1, put the bar in step 2 into the electric furnace and heat it to 935 ℃, the holding time is 20min, and then take it out and put it into the pre-sprayed graphite mold for final forging to obtain the final forging. The forging direction is downward along the axis of the die cavity.

[0044]The mechanical properties of the final forging produced...

Embodiment 3

[0046] Step 1, blanking, blank the φ40mm medical Ti6Al4V alloy bar, calculate the length of the bar accurately according to the volume of the acetabular cup, and fillet the upper and lower ends of the bar, the radius of the upper end fillet R1=10mm, and the lower end round Corner radius R2=10mm, complete blanking;

[0047] Step 2, spraying, heat the bar to 250°C and directly spray the glass-ceramic anti-oxidation coating, the coating thickness is 0.20mm;

[0048] Step 3, final forging, install the forging die on the electric screw press, the preset thermal expansion coefficient of the die chamber and punch of the forging die is 1.0~1.1, put the bar in step 2 into the electric furnace and heat it to 970 ℃, the holding time is 10 minutes, and then take it out and put it into the pre-sprayed graphite mold for final forging to obtain the final forging. The forging direction is downward along the axis of the die cavity.

[0049] The mechanical properties of the final forging produ...

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Abstract

The invention provides a metal acetabular outer cup closed-type forging die. The problems that procedures are complicated, the manufacturing cycle is long, the material utilization rate is low, filling defects are prone to being generated, adjustment of forging equipment is difficult and the production cost is high due to the fact that existing metal acetabular outer cups are manufactured by an open-type die forging process can be solved. The metal acetabular outer cup closed-type forging die includes a punch and a female die. The female die is provided with an impression penetrating in an up-down mode. The impression includes a guide cylinder, a cavity and an extrusion port which coaxially communicate with one another sequentially from top to bottom, and the shape of the cavity is matchedwith the outer shape of the acetabular outer cups. A guide part and a forming part which are coaxially arranged from top to bottom are arranged on the bottom surface of the punch, the guide part is in clearance fit with the guide cylinder, and the shape of the forming part is matched with the inner shape of the acetabular outer cups. Meanwhile, the invention further provides a metal acetabular outer cup closed-type forging method.

Description

technical field [0001] The invention relates to the field of artificial joint processing and manufacturing, in particular to a metal acetabular outer cup closed forging die and forging method. Background technique [0002] The metal acetabular outer cup is an artificial joint implant, which is used as a replacement for implanting the human hip joint in orthopedic replacement surgery after the human hip joint is damaged or diseased, and implanted in the patient's body to restore the physiological function of the hip joint to a certain extent , relieve pain, improve the patient's exercise needs, and improve the quality of life. [0003] At present, the same kind of metal acetabular outer cups are manufactured by open die forging process. The forging process will produce large flashes, which need to be removed by laser trimming and milling flashes in the later stage. The process is complicated and the manufacturing cycle is long. , the consumption of raw materials is large, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J13/02B21J5/02
CPCB21J5/025B21J13/02
Inventor 邹志强何涛李湘军
Owner 无锡航亚科技股份有限公司
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