Coaxial powder feeding and laser forging composite addition and subtraction material manufacturing method and device

A coaxial powder feeding and laser technology, applied in the field of additive and subtractive material manufacturing, can solve the problems of internal quality problems of parts, low dimensional accuracy and efficiency, and achieve the effect of solving air holes, ensuring the contour and surface accuracy of parts, and changing the internal structure and performance.

Active Publication Date: 2021-01-15
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a coaxial powder feeding and laser forging compound addition and subtraction material manufacturing method and device, combining three technologies of coaxial powder feeding laser cladding, laser forging and mechanical milling It can change the internal structure and performance of the parts, and avoid the problems of internal quality, dimensional accuracy and low efficiency of the parts caused by the previous method of step-by-step and preheating.

Method used

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  • Coaxial powder feeding and laser forging composite addition and subtraction material manufacturing method and device
  • Coaxial powder feeding and laser forging composite addition and subtraction material manufacturing method and device

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Embodiment 1

[0033]Such asfigure 1 Shown is an embodiment of the manufacturing method of the coaxial powder feeding and laser forging composite increase and decrease material of the present invention, including the following steps:

[0034]S1. Based on the three-dimensional model of the part, slice the part into several layers, generate the laser cladding path, impact forging path, plane and profiling milling path codes for each layer, and initially design the laser cladding process parameters of the manufacturing device ;

[0035]S2. Start the continuous laser generator 18, and the cladding robot 14 drives the coaxial powder feeding cladding laser head 13 to perform cladding according to the laser cladding process parameters in step S1;

[0036]S3. According to the laser cladding process parameters and the temperature data of the infrared temperature sensor 12 in step S2, the laser forging process parameters are analyzed, and the formed area of ​​each layer is laser forged through the forging laser head...

Embodiment 2

[0046]Such asfigure 2Shown is the first embodiment of the coaxial powder feeding and laser forging composite adding and reducing material manufacturing device, including a central control system 2 and a table power system 3 connected to the central control system 2, a cladding system, and a laser forging system , Milling system, computer 1, workbench power system 3 is connected with a five-axis workbench 5, cladding system, laser forging system, and milling system are connected with a support frame 20, and the workpiece 15 is set on the five-axis workbench 5; The power system 3, the cladding system, the laser forging system, and the milling system are covered with a casing 19, and the casing 19 is also provided with a tool magazine 4 connected to the central control system 2.

[0047]In the implementation of this embodiment, the central control system 2 is provided with three control modules respectively controlling the cladding system, the laser forging system, and the milling system....

Embodiment 3

[0052]This embodiment is an application of the method of the first embodiment in manufacturing an aircraft engine blisk, and includes the following steps:

[0053]S1. Determine the three-dimensional model of the blisk through the computer 1, slice the parts of the disc body and the blades separately, plan the laser cladding path, impact forging path, and milling path for each layer respectively to generate a milling cladding robot 14 The movement code of the forging robot 10, the milling code of the milling robot 6, and the movement code of the five-axis worktable 5, to initially determine the laser cladding process parameters;

[0054]S2. Manufacturing of the disk body: According to the planned path of the disk body, the laser beam is generated by the continuous laser generator 18 and transmitted to the coaxial powder feeding and cladding laser head 13 through the optical path. At the same time, the powder storage tank 16 and the gas storage tank 17 are sent through The powder / gas pipe t...

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Abstract

The present invention relates to the technical field of additive and subtractive material manufacturing, more specifically, to a method and device for manufacturing additive and subtractive materials combined with coaxial powder feeding and laser forging. Based on the three-dimensional model of the part, after slicing and planning the path, the cladding robot is started The continuous laser is used for layered forming of the parts, and the forging robot is started at the same time to use short pulses to laser forge the cladding area within the forging temperature range, and the milling system is started to mill the cladding area at the same time, the two-beam laser system and The milling system interacts with each other through the real-time feedback data, and the parts obtained have high precision and almost no defects inside the parts. And through the coaxial powder feeding of the robot, the problem of cladding stability caused by the environment, powder shape, and uniformity of the powder feeding process is solved; the pores and micro cracks in the cladding area are solved by laser shock forging, and the distribution of residual stress is improved. ;By milling each layer in the cladding area, the dimensional accuracy of the part is increased and the surface roughness is reduced.

Description

Technical field[0001]The present invention relates to the technical field of additive-subtractive material manufacturing, and more specifically, to a method and device for manufacturing composite additive-subtractive materials by coaxial powder feeding and laser forging.Background technique[0002]In the past two decades, additive manufacturing has developed rapidly. Compared with traditional subtractive manufacturing such as turning, milling, and grinding, additive manufacturing adopts the method of gradually accumulating materials to realize the formation of solid parts. Cutting technology, which is based on digital models, uses heat sources to melt powdered metals or plastics, and gradually accumulates layer by layer. It is a "bottom-up" manufacturing method that can realize some complex parts. However, additive manufacturing also faces some problems as follows: (1) Additive manufacturing is prone to macroscopic surface unevenness, pores, cracks, and dilution rate due to the temper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/105B22F3/17B22F3/24B33Y10/00B33Y30/00
CPCB22F3/003B22F3/17B22F3/24B33Y10/00B33Y30/00B22F2003/247B22F10/00B22F10/32B22F12/43B22F10/25B22F12/90B22F10/38B22F12/22B22F10/50Y02P10/25
Inventor 张永康刘俊李佳敏刘航
Owner GUANGDONG UNIV OF TECH
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