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Coaxial powder feeding and laser forging compound additive-subtractive manufacturing method and device

A technology of coaxial powder feeding and manufacturing method, applied in the field of adding and subtracting materials manufacturing, can solve the problems of internal quality problems of parts, low dimensional accuracy efficiency, etc., to solve the air holes, ensure the contour and surface accuracy of the parts, and improve the residual stress distribution state. Effect

Active Publication Date: 2018-11-06
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 compound additive-subtractive manufacturing method and device
  • Coaxial powder feeding and laser forging compound additive-subtractive manufacturing method and device

Examples

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Embodiment 1

[0033] Such as figure 1 Shown is an embodiment of the manufacturing method of coaxial powder feeding and laser forging composite addition and subtraction of the present invention, including the following steps:

[0034] S1. Based on the 3D model of the part, slice the part into several layers, generate the laser cladding path, impact forging path, plane and profiling milling path code of each layer, and preliminarily 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 and forming according to the laser cladding process parameters in step S1;

[0036] S3. According to the laser cladding process parameters in step S2 and the temperature data of the infrared temperature sensor 12, analyze and obtain the laser forging process parameters, and carry out laser forging on the formed area of ​​each layer thr...

Embodiment 2

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

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

Embodiment 3

[0052] This embodiment is the application of the method of Embodiment 1 in the manufacture of an aircraft engine blisk, including the following steps:

[0053] S1. Determine the three-dimensional model of the overall blisk through the computer 1, slice the parts of the disk body and the blade, respectively plan the laser cladding path, impact forging path, and milling path of each layer, and generate a milling and cladding robot 14 The motion code of the forging robot 10, the milling code of the milling robot 6, and the motion code of the five-axis worktable 5 preliminarily determine the laser cladding process parameters;

[0054] S2. Manufacture 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, while the powder storage tank 16 and the gas storage tank 17 are sent to the The powder / air pipe transport...

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Abstract

The invention relates to the technical field of additive-subtractive manufacturing, in particular to coaxial powder feeding and laser forging compound additive-subtractive manufacturing method and device. On the basis of a component three-dimensional model, after slices are cut and a path is planned, a fusion covering robot is started to adopt continuous laser for layered forming a component, meanwhile, a forging robot is started to adopt short pulse for laser forging a fusion covering area within a forging temperature range, meanwhile, a milling system is started for milling the fusion covering area, and a two-beam laser system and the milling system are intercoupled-influenced through real-time feedback data, so that the accuracy of the obtained component is high, and the inner part of the component has hardly any defect. Through coaxial powder feeding by the robot, the problem of the fusion covering stability caused by the environment, the powder shape and the uniformity of a powderfeeding process is solved; through laser shock forging, the problems of air pores and microcracks of the fusion covering area are solved, and the residual stress distribution state is improved; and through milling each layer of the fusion covering area, the dimensional accuracy of the component is improved, and the surface roughness is reduced.

Description

technical field [0001] The invention relates to the technical field of additive and subtractive material manufacturing, and more specifically, relates to a method and device for manufacturing additive and subtractive materials combined with 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 forming of solid parts. Compared with traditional Cutting technology, which is based on a digital model, uses a heat source to melt powdered metal or plastic, 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 surface unevenness, pores, cracks,...

Claims

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Application Information

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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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