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A kind of forging method of titanium alloy tibial plateau artificial joint implant

A tibial platform and artificial joint technology, applied in the field of artificial joint forging and processing, can solve the problems of low material utilization rate, long manufacturing cycle and high production cost, and achieve the effects of less raw material consumption, low production cost and small machining amount

Active Publication Date: 2020-09-25
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

[0006] Aiming at the technical problems that the existing titanium alloy tibial plateau artificial joint implant adopts die forging processing, there are low service life, low material utilization rate, long manufacturing cycle and high production cost, the present invention provides a titanium alloy tibial plateau artificial joint The forging method of the implant can realize the precision forging process of the titanium alloy tibial plateau artificial joint implant, ensure the complete and smooth distribution of the forging metal streamline along the contour of the workpiece, improve the life of the workpiece, and also have the advantages of less raw material consumption and shorter manufacturing cycle. Advantages of short and low production cost

Method used

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  • A kind of forging method of titanium alloy tibial plateau artificial joint implant
  • A kind of forging method of titanium alloy tibial plateau artificial joint implant
  • A kind of forging method of titanium alloy tibial plateau artificial joint implant

Examples

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Effect test

Embodiment 1

[0063] A kind of forging method of titanium alloy tibial plateau artificial joint implant, it comprises the following steps:

[0064] Step 1. Use a circular saw to cut out the Ti6Al4V alloy bar with a diameter of 40mm for medical use. The cutting length is 45mm, and the upper and lower ends of the bar are rounded separately, and the fillet radius R1=5mm;

[0065] Step 2. After heating the bar in step 1 to 150°C, directly spray the glass-ceramic anti-oxidation coating on the surface, and the thickness of the coating is 0.04mm;

[0066] Step 3, closed upsetting forming, put the bar in step 2 into the electric furnace and heat it to 920°C, keep it warm for 40 minutes, so that the bar is heated evenly, then take it out and immediately put it into the female mold sprayed with graphite for closed The upsetting head piece is obtained by upsetting. The draft angle of the female mold used is 0.1°, and the matching gap between the cavity of the female mold and the punch is 0.1mm on one ...

Embodiment 2

[0080] A kind of forging method of titanium alloy tibial plateau artificial joint implant, it comprises the following steps:

[0081] Step 1. Use a circular saw to cut out the Ti6Al4V alloy bar with a diameter of 40mm for medical use. The cutting length is 45mm, and the upper and lower ends of the bar are rounded separately, and the fillet radius R1=5mm;

[0082] Step 2. After heating the bar in step 1 to 175°C, directly spray the glass-ceramic anti-oxidation coating on the surface, and the thickness of the coating is 0.07mm;

[0083] Step 3, closed upsetting forming, put the bar in step 2 into the electric furnace and heat it to 930°C, keep it warm for 30 minutes, so that the bar is heated evenly, then take it out and immediately put it into the female mold sprayed with graphite for closed The upsetting head piece is obtained by upsetting. The draft angle of the female mold used is 0.2°, and the matching gap between the die cavity of the female mold and the punch is 0.2mm on ...

Embodiment 3

[0097] A kind of forging method of titanium alloy tibial plateau artificial joint implant, it comprises the following steps:

[0098] Step 1. Use a circular saw to cut out the Ti6Al4V alloy bar with a diameter of 40mm for medical use. The cutting length is 45mm, and the upper and lower ends of the bar are rounded separately, and the fillet radius R1=5mm;

[0099] Step 2. After heating the bar in step 1 to 200°C, directly spray the glass-ceramic anti-oxidation coating on the surface, and the thickness of the coating is 0.10mm;

[0100] Step 3, closed upsetting forming, put the bar in step 2 into the electric furnace and heat it to 940°C, keep it warm for 20 minutes, so that the bar is heated evenly, then take it out and immediately put it into the female mold sprayed with graphite for closed The upsetting head piece is obtained by upsetting, the draft angle of the female mold used is 0.3°, and the matching gap between the cavity of the female mold and the punch is 0.3mm on one ...

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Abstract

The invention provides a forging method for a titanium alloy tibia platform artificial joint implanted object. The forging method can solve the problems that die forging machining is adopted in existing titanium alloy tibia platform artificial joint implanted objects, the service life is short, the material utilization rate is low, the manufacturing period is long, and the production cost is high.The forging method comprises discharging, spraying, closed upsetting forming, coating removal, spraying, closed forward extrusion pre-forging forming, coating removal, open type forward extrusion finish forging forming, oxide skin removal, vacuum annealing, chemical milling machining and CNC machining.

Description

technical field [0001] The invention relates to the field of forging processing of artificial joints, in particular to a forging method of a titanium alloy tibial platform artificial joint implant. Background technique [0002] The titanium alloy tibial plateau artificial joint implant is a substitute for the damaged tibial plateau in the human knee joint. It can be implanted through surgery to restore joint function and improve the quality of life of patients. [0003] figure 1 and figure 2 It is a structural schematic diagram of a titanium alloy tibial plateau artificial joint implant, which includes a rod part 1, a wing part 2 and a base plate 3, and the rod part includes a thin cylindrical section 4 and a thick cylindrical section 5 coaxially arranged from top to bottom, The rod is perpendicular to the plane 6 on the bottom plate, there are several bumps 7 on the plane on the bottom plate, and a U-shaped groove 8 is opened on the side of the bottom plate, and the thic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21J5/00B21J5/02
CPCB21J5/002B21J5/022B21J5/025
Inventor 何涛李湘军李建军辛立刚许震杰
Owner 无锡航亚科技股份有限公司